Page 1

Interim report January–September 2026 Homes & Neighbourhoods Norrbodahöjden Upplands-Bro, Sweden

Page 2

Sales rate 64% Number of housing units sold, R12 2,839 Number of production starts, R12 2,973 Number of housing units sold more than doubled year-on-year Segment reporting 1 July–30 September 2026 • Net sales amounted to SEK 2,216 M (2,167), an increase of 2 per cent. Adjusted for currency effects, the increase was 3 per cent. • The gross margin was 14.1 per cent (13.8). • EBIT was SEK 168 M (148), an increase of 14 per cent. Adjusted for currency effects, the increase was 15 per cent. The EBIT margin was 7.6 per cent (6.8). • The number of housing units sold was 959 (456). • The number of production starts was 947 (708). 1 January–30 September 2026 • Net sales amounted to SEK 6,026 M (5,615), an increase of 7 per cent. Adjusted for currency effects, the increase was 9 per cent. • The gross margin was 14.4 per cent (13.5). • EBIT was SEK 417 M (291), an increase of 43 per cent. Adjusted for currency effects, the increase was 46 per cent. The EBIT margin was 6.9 per cent (5.2). • The number of housing units sold was 1,923 (1,477). • The number of production starts was 1,971 (1,773). • Updated outlook for 2026. For the full year 2026, the operating margin is expected to be approximately 7 per cent (excluding potential restructuring costs) and net sales are expected to increase by approximately 10 per cent compared with 2025 (adjusted for currency effects). Key ratios, housing units 2026 Jul–Sep 2025 Jul–Sep Δ% 2026 Jan–Sep 2025 Jan–Sep Δ% Oct 2025 –Sep 2026 2025 Jan–Dec Number of housing units sold, consumer 453 456 –1 1,356 1,246 9 1,827 1,717 Number of housing units sold, investor 506 – 567 231 145 1,012 676 Number of production starts, consumer 441 708 –38 1,345 1,542 –13 1,902 2,099 Number of production starts, investor 506 – 567 231 145 1,012 676 Number of production starts, investment properties – – 59 – 59 – Number of housing units in production 4,931 3,836 29 4,931 3,836 29 4,931 4,081 of which investment properties 59 – 59 – 59 – Sales rate for ongoing production, % 64 57 64 57 64 56 Number of housing units recognised in profit 445 268 66 1,125 1,185 –5 1,936 1,996 IFRS reporting 1 July–30 September 2026 • Net sales amounted to SEK 1,511 M (1,201). • EBIT totalled SEK 85 M (–28). • Cash flow before financing and tax was SEK –536 M (95). • Earnings per share, before and after dilution, amounted to SEK –0.08 (–0.36). • The annual valuation of the building rights portfolio showed an estimated surplus value of approximately SEK 4.2 Bn (5.3) and did not entail any impairment. 1 January–30 September 2026 • Net sales amounted to SEK 3,992 M (4,473). • EBIT totalled SEK 123 M (24). • Cash flow before financing and tax was SEK –1,128 M (136). • Earnings per share, before and after dilution, amounted to SEK –0.71 (–0.99). Waldpanorama Berlin, Germany Bonava Interim report January–September 2026 2

Page 3

EBIT margin, R12 7.8% Currency-adjusted sales growth, Jan–Sep 9% Equity/assets ratio 38% Sustained controlled growth Key ratios, segments, SEK M 2026 Jul–Sep 2025 Jul–Sep Δ% 2026 Jan–Sep 2025 Jan–Sep Δ% Oct 2025 –Sep 2026 2025 Jan–Dec Net sales 2,216 2,167 2 6,026 5,615 7 8,629 8,218 Gross profit 313 299 5 868 761 14 1,281 1,173 Gross margin, % 14.1 13.8 14.4 13.5 14.8 14.3 EBIT 168 148 14 417 291 43 674 548 EBIT margin, % 7.6 6.8 6.9 5.2 7.8 6.7 Earnings per share before and after dilution, SEK 0.11 0.05 –0.02 –0.36 0.51 0.16 Return on equity, R12, % 2.4 –0.5 2.4 –0.5 2.4 0.7 Return on capital employed, R12, % 4.8 3.4 4.8 3.4 4.8 4.2 This segment reporting reflects how Bonava monitors and manages its business internally, on the basis of progress in the project portfo- lio, which mirrors how value is created over time in the Group’s resi- dential development projects. This development takes both the completion rate of the projects and actual sales into account, which means that income and costs are recognised as the projects prog- ress and the housing units are sold. The preparation of segment reporting is described in more detail in Note 2 of Bonava’s 2025 Annual Report, on pages 140–141. The difference between IFRS and the segment reporting pertains to the point in time when income and costs are recognised. Over the life cycle of the project, both methods yield the same total income and costs. To give a true picture of the performance of the opera- tion, these two measurements are presented in the interim report: • IFRS – income and costs are recognised upon delivery. • Segment reporting – income and costs are recognised in line with project progress. Together, these two metrics provide a more complete picture of the operation. IFRS shows the legal earnings for the period, whereas segment reporting shows the underlying operational performance. Deferred tax is recognised on the difference between the two methods. This segment reporting means that net sales and EBIT in the seg- ments deviate from the reporting under IFRS. Bridges between IFRS and the segment metrics for net sales and EBIT are presented in Notes 3 and 4. The figures that are based on segment reporting are highlighted in brown in this report. Key ratios, IFRS, SEK M 2026 Jul–Sep 2025 Jul–Sep Δ% 2026 Jan–Sep 2025 Jan–Sep Δ% Oct 2025 –Sep 2026 2025 Jan–Dec Net sales 1,511 1,201 26 3,992 4,473 –11 7,244 7,725 Gross profit 229 123 87 574 494 16 1,067 987 Gross margin, % 15.1 10.2 14.4 11.0 14.7 12.8 EBIT 85 –28 123 24 404 460 362 EBIT margin, % 5.6 –2.4 3.1 0.5 6.4 4.7 Earnings per share before and after dilution, SEK –0.08 –0.36 –0.71 –0.99 –0.00 –0.28 Equity/assets ratio, % 38.3 40.6 38.3 40.6 38.3 44.4 Net debt 4,786 3,054 57 4,786 3,054 57 4,786 2,816 Net project asset value 6,041 4,688 29 6,041 4,688 29 6,041 4,856 Net project asset value / Net debt excl. leases, multiple 1.3 1.6 1.3 1.6 1.3 1.8 Cash flow before financing and tax –536 95 –1,128 136 –926 337 Gartenstadt-Karlshorst Berlin, Germany Bonava Interim report January–September 2026 3

Page 4

Comments from the CEO Positive performance despite weaker market conditions in Germany – measures initiated Rising long-term interest rates impacting Germany’s prospects for growth Geopolitical turbulence unfortunately remains a theme when describing trends in our markets. In the wake of the conflict in the Middle East, rising energy prices have meant increased inflationary pressure, which has prompted several central banks to raise their key interest rates. Meanwhile, increasing numbers of government bonds are being issued to finance recurring budget shortfalls as well as investments in infrastructure and defence. Altogether, this has led to sharp rises in long-term interest rates – a trend that acceler- ated during the third quarter. We have previously pointed to a slowdown in sales to consumers in Germany against the backdrop of rising long-term interest rates, which is a trend that became even more pronounced during the quarter and also had a negative impact on the German investor seg- ment. Berlin, Düsseldorf and Cologne are continuing to see stable sales to consumers, but it is taking longer to convert into sales agreements. Demand for subsidised rental apartments projects is strong, but it does not offset the decline in other rental transactions, which is why we believe that the transaction volume will be signifi- cantly lower than previously assumed. Positive development in our other markets Performance in the Swedish housing market has remained positive, with increasing volumes and higher prices, while the Baltic markets overall remain strong. In Sweden, increases in real household incomes and expectations of rising housing prices have had a posi- tive impact on the housing market. Demand for rental properties in Sweden’s largest cities is high, which has led to an increase in the transaction volume. Among the Baltic markets, Riga and Vilnius continue to be characterised by strong demand with rising volumes and prices. Although the Finnish market is struggling with low vol- umes and low prices in the housing market, it is worth noting that the growth forecasts for the Finnish economy have been revised upward. Increased sales and profitability in the third quarter Net sales for the quarter increased 2 per cent and amounted to SEK 2,216 M (2,167), and EBIT increased 14 per cent to SEK 168 M (148). The EBIT margin, rolling 12 months, increased to 7.8 per cent, attributable to improved project margins and better cost cov- erage. The turnaround in the Swedish operation is significant, and the German operations are posting stable results despite lower net sales. Sales of homes in the third quarter doubled year-on-year, due primarily to the sale of the Norrbodahöjden rental housing project with 506 units. The sales rate based on binding contracts in on - going production increased to 64 per cent (57). Net debt totalled SEK 4.8 Bn (3.1). Net debt increased as planned due to a higher number of projects in ongoing production, financed by external project loans. With approximately 1,000 homes to be handed over in the fourth quarter, net debt is expected to decrease significantly by year-end. Robust measures to create a more resilient Bonava Our strategy is built on controlled profitable growth. As a result of the reorganisation that was carried out in Germany three years ago, we had already identified opportunities to implement an efficiency improvement programme with the aim of reducing structural costs and strengthen the competitiveness of the German operations. Given the increased uncertainty in the German market, we have expanded the scope of this programme and taken steps to adapt the organisation to lower production volumes. Our leading growth mar- kets will be given even greater priority. Structural measures in Germany, will affect around 100 employees, which is why we will be reporting approximately SEK 75 M in structural costs. The esti- mated total reduction in costs is expected to amount to approxi- mately SEK 100 M on a yearly basis. This effect will be gradually achieved, and fully implemented by mid-2027. In addition to review- ing costs, we are continuing our efforts to adjust the capital tied up in building rights. Updated outlook for 2026 One fundamental condition for the previously communicated out- look was that Bonava could increase the number of its production starts to nearly 3,500. Planned production starts have been post- poned in light of the weaker market conditions in Germany, which impacts the expected volume of accrued revenue and earnings for 2026. As a result, we are updating our financial outlook, with sales growth now projected to be approximately 10 per cent for the full year (previously 20–25 per cent) and the EBIT margin expected to be approximately 7 per cent for the full year (previously 8–9 per cent), excluding any potential restructuring costs that will be charged to the fourth quarter. The lower expected revenue growth also explains the downward revision of the operating margin. The past few years have seen a string of major geopolitical events, accompanied by a rapid return to inflation and higher inter- est rates. This has entailed major challenges for the industry as a whole. One of the most important lessons from this period is to act quickly. This means that we are compelled to make difficult, but necessary, decisions. Our journey towards a vibrant and profitable Bonava continues, and I am sincerely grateful to the many wonderful Bonavians who make this possible. Peter Wallin President and CEO We report positive performances in most areas for the third quarter. The number of started and sold units increased and we reported improved profitability. Particularly gratifying to note is the clear turnaround in the Swedish operation. We are implementing cost-reduction measures, primarily in Germany, to ensure resilience and improve efficiency during the fourth quarter. Bonava Interim report January–September 2026 4

Page 5

News during the quarter Increasing the potential for harnessing solar energy through community energy Bonava Finland’s first community energy neighbourhood, part of its Tampereen Tuike project, has been in operation for a year and has provided valuable insights into how locally generated solar power can be shared among residents. What this means is that the solar energy that is generated is used to meet the electricity needs of both the property as a whole and of the individual apartments. In light of these positive experiences, Bonava Finland has decided to establish energy communities in all new consumer projects where solar panels are installed. Bonava Latvia receives industry awards During the third quarter of 2026, Bonava Latvia received several major industry awards that recognised the quality of its construction and its energy efficiency. In the annual “Building of the Year in Latvia 2025” competition, Pīlādžu mājas was awarded first prize for the best new residential construction of the year, and Ropažu 16 received third prize. Bonava Latvia was also awarded first prize in the “Latvia’s Most Energy-Efficient Residential Building 2026” competition. Awareness Week In September, all employees at Bonava took part in Awareness Week, the annual themed week on health and safety. This year, there was a specific focus on the responsibility we all share for creating a safe and secure work environment. Bonava Sweden starts pro- duction of 500 rental apart- ments with a property value of SEK 1.3 Bn. From the start, the Norrbodahöjden project is expected to generate positive ongoing cash flows and is aligned with Bonava’s strategy of increasing its share of rental housing projects. Before the summer, Bonava completed two strate- gic land acquisitions in the Stockholm region encompassing a total of approxi- mately 600 housing units: 100 in Skogås and 500 in Stora Ursvik. The plan is to develop these as rental apart- ments, with construction expected to start within the next 12 months. Valuation of the building rights portfolio We have 24,200 building rights in good locations as a basis for future growth. Our building rights portfolio is assessed in the third quarter of every year, and the estimated surplus value amounted to SEK 4.2 Bn (5.3) as of 30 September. Read more on page 9. Bonava Interim report January–September 2026 5

Page 6

Sweden Explora Location: Gothenburg Housing category: Multi-family housing Number of units: 62 housing units for consumers Bonava and OBOS have started production of the first 124 Nordic Swan ecolabelled housing units in Explora. In its entirety, the project encompasses 207 apartments with a green inner courtyard and shared roof terraces. The neigh- bourhood combines proximity to central Gothenburg with the natu- ral beauty of Änggårdsbergen. Finland Silmu Location: Turku Housing category: Multi-family housing Number of units: 67 housing units for consumers Bonava is developing Silmu, a multi-family housing project with 67 energy-efficient housing units in Turku, with completion sched- uled for late 2027. This project is part of Kirstinpuisto – one of Bonava Finland’s largest urban development districts – where approximately 1,200 housing units will be built with a focus on sus- tainability, green spaces and attractive urban environments. Germany Paulshöfe Location: Düsseldorf Housing category: Multi-family housing Number of units: 95 housing units for consumers Paulshöfe offers modern, energy- efficient homes in Düsseldorf- Benrath. This attractively located neighbourhood has good trans- port links and is characterised by numerous green spaces as well as common areas where neighbours can meet. Estonia Mäepealse, Stage 2 Location: Tallinn Housing category: Multi-family housing Number of units: 46 housing units for consumers The Mäepealse project offers attractively located residences close to nature, with green spaces and paths for hiking and skiing. The second phase consists of 46 well-planned, energy-efficient apartments with residents having access to a gym, facilities for wash- ing bicycles and pets, and a green courtyard with playgrounds as well as spaces for gardening and barbecues. Latvia Ēvalda Valtera, Stage 5 Location: Riga Housing category: Multi-family housing Number of units: 60 housing units for consumers Ēvalda Valtera offers attractive housing in a growing district, close to green spaces. The neighbour- hood is characterised by modern architecture, playgrounds, recre- ational areas and spaces such as beach volleyball courts for socialis- ing. With an Energy Class A rating and being equipped with solar pan- els, these energy-efficient homes enable lower living expenses. Neighbourhood production starts In the third quarter, Bonava started production of 947 housing units (708). All production starts are reported at https://www.bonava.com/en/investors/housing-starts. Bonava Interim report January–September 2026 6

Page 7

July–September 2026 Net sales Net sales amounted to SEK 2,216 M (2,167), cor- responding to an increase of 2 per cent. Adjusted for currency effects, this corresponded to an increase of 3 per cent. This increase compared with the comparative period was driven by primar- ily higher sales in Sweden and the Baltics as a result of larger volumes of ongoing production. Differences in exchange rates compared with the corresponding period of the previous year resulted in a translation effect of SEK –8 M on net sales. The number of housing units in ongoing pro- duction increased to 4,931 (3,836), a result pri- marily of higher volumes in Sweden and the Baltics. The sales rate increased to 64 per cent (57). The number of housing units sold more than doubled to 959 (456), primarily the result of the investor transaction for 506 housing units in Norrbodahöjden. EBIT Gross profit increased to SEK 313 M (299) and the gross margin was 14.1 per cent (13.8). EBIT increased to SEK 168 M (148), up 14.1 per cent. EBIT includes a positive change of SEK 11 M in values of investment properties. Germany’s EBIT was negatively impacted by price adjustments along the Baltic Sea coast and in Saxony. Adjusted for currency effects, this increase amounted to 14.8 per cent. The EBIT margin rose to 7.6 per cent (6.8), driven by a higher gross margin and lower selling and admin- istrative expenses. The higher costs in other oper- ations are mainly attributable to advisory fees related to the refinancing and IT-related costs. Differences in exchange rates compared with the corresponding period of the previous year resulted in a translation effect of SEK –1 M on EBIT. January–September 2026 Net sales Net sales amounted to SEK 6,026 M (5,615), corresponding to an increase of 7.3 per cent. Adjusted for currency effects, this corresponded to an increase of 9 per cent. This increase com- pared with the comparative period was driven by higher levels of sales, primarily in Sweden and the Baltics, while sales decreased in Germany and Finland. Differences in exchange rates compared with the corresponding period of the previous year resulted in a translation effect of SEK –92 M on net sales. Sales for the period were positively impacted by the investor transaction for 506 housing units in Norrbodahöjden that was completed during the third quarter. EBIT Gross profit increased to SEK 868 M (761) and the gross margin was 14.4 per cent (13.5). Earn- ings in Germany were negatively impacted by price adjustments on leisure housing on the Baltic coast and Saxony. Meanwhile, higher project mar- gins had a positive impact on earnings, primarily in Sweden and the Baltics. EBIT increased to SEK 417 M (291), up 43.4 per cent. EBIT includes a positive change of SEK 11 M in values of investment properties that was reported in the third quarter. The EBIT margin rose to 6.9 per cent (5.2), primarily as a result of an increased volume of ongoing projects, higher gross margins and lower selling and administra- tive expenses. The higher costs in other opera- tions are mainly attributable to advisory fees related to the refinancing and IT-related costs. Adjusted for currency effects, this increase amounted to 46 per cent. Differences in exchange rates compared with the corresponding period of the previous year resulted in a translation effect of SEK –8 M on EBIT. 1) Other operations comprise the Parent Company, Group adjustments, eliminations and the Danish operations. Group overview SEK M 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep Oct 2025– Sep 2026 2025 Jan–Dec Germany 1,420 1,451 3,719 3,807 5,392 5,480 Sweden 357 342 1,180 737 1,631 1,188 Finland 94 131 304 479 431 606 Baltics 344 243 822 591 1,174 943 Other operations1) 0 0 1 1 1 1 Total 2,216 2,167 6,026 5,615 8,629 8,218 SEK M 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep Oct 2025– Sep 2026 2025 Jan–Dec Germany 112 142 324 352 519 547 Sweden 24 10 79 –11 122 32 Finland 16 –4 6 4 4 3 Baltics 62 33 134 59 198 123 Other operations1) –46 –34 –125 –113 –169 –157 Total 168 148 417 291 674 548 Segment reporting Net sales EBIT Bonava Interim report January–September 2026 7

Page 8

Group overview July–September 2026 Net sales and profit Net sales increased to SEK 1,511 M (1,201) and the number of housing units delivered increased to 445 (268). Germany’s share of housing units delivered was higher during the period than in the comparative period, which had a positive impact on average sales per housing unit delivered. Dif- ferences in exchange rates compared with the cor- responding period of the previous year resulted in a translation effect of SEK –5 M on net sales. Gross profit increased to SEK 229 M (123) and the gross margin amounted to 15.1 per cent (10.2), due to higher margins in delivered housing units. EBIT totalled SEK 85 M (–28). Differences in exchange rates compared with the corresponding period of the previous year resulted in a transla- tion effect of SEK –1 M on EBIT. Net financial items, profit/loss before tax, tax and profit/loss for the period Net financial items amounted to SEK –123 M (–87) and include non-recurring costs attributable to the redemption of previous debt totalling SEK –29 M. Net interest items amounted to SEK –76 M (–65) as a result of an increase in average debt during the period. Loss before tax totalled SEK –39 M (–116). Tax on profit/loss for the period amounted to SEK 12 M (–1). The tax income is mainly attribut- able to Germany, where current tax is based on the forecast taxable result for the full year. A down- ward revision of the forecast resulted in a reversal of previously recognised tax. No deferred tax assets were recognised for deficits generated in 2025 or 2026. IFRS reporting January–September 2026 Net sales and profit Net sales decreased to SEK 3,992 M (4,473) as a result of a decline in the number of housing units delivered to 1,125 (1,185). Differences in exchange rates compared with the corresponding period of the previous year resulted in a transla- tion effect of SEK –63 M on net sales. Gross profit increased to SEK 574 M (494) and the gross margin amounted to 14.4 per cent (11.0), due to higher margins in delivered housing units. EBIT increased to SEK 123 M (24). Differ- ences in exchange rates compared with the corre- sponding period of the previous year resulted in a translation effect of SEK –4 M on EBIT. Net financial items, profit/loss before tax, tax and profit/loss for the period Net financial items amounted to SEK –345 M (–329) and net interest items amounted to SEK –204 M (–200). Non-recurring costs attribut- able to the redemption of previous debt and bonds totalled SEK –67 M. Loss before tax totalled SEK –222 M (–305). Tax on profit/loss for the period amounted to SEK –6 M (–13). No deferred tax assets were rec- ognised for deficits generated in 2025 or 2026. Ahrensfelder Obstwiesen Berlin, Germany Bonava Interim report January–September 2026 8

Page 9

Building rights portfolio The total number of building rights at the end of the period was 24,200 (24,800). As of 30 June 2026, the number of building rights totalled 24,400. Bonava recognises some of its building rights off-balance sheet, such as land that is controlled through a contract with options or other agreements where the land has not yet been taken into pos- session. The number of building rights off-balance sheet at the end of the period amounted to 8,000 (6,900). A total of 665 building rights were acquired during the quarter, of which approximately one half off-balance sheet. Acquisitions were made in Sweden, Germany and the Baltics. Investment commitments for building rights off the balance sheet totalled SEK 1,817 M as of the balance sheet date, at the end of the preceding quarter the amount was SEK 1,684 M. It is estimated that 21 per cent of the potential production starts could take place in 2026–2027, 26 per cent in 2028–2029 and 53 per cent after 2029. The building rights are recognised as current assets and measured at the lower of cost and net realisable value, item by item. During the third quarter of 2026, the valuation of the building rights portfolio was updated. As in previous years, the valued portfolio also includes certain investments in Germany, some of which have already begun, thus reclassifying them as ongoing projects. The building rights portfolio is internally valued by discounting the future cash flows from the projects with construction planned on land held for future development. These discount rates are assessed individually on the basis of the risk profiles of the invest- ments. The average unlevered discount rate amounted to 8.5 per cent (8.8). The internal valuation of selected investments is supple- mented by external valuations. The external valuations encom- passed 12 per cent (13) of the portfolio’s carrying amount. When an external valuation has been received, the lesser of the value accord- ing to the external valuation and the discounted present value according to the internal calculation is used. The valuation that was carried out did not result in any impairment during the period, compared with an impairment of SEK 15 M in the previous year. The assessed surplus value of the portfolio amounted to SEK 4.2 Bn (5.3) on the valuation date. The decrease in surplus value is attributable to building rights being transferred to ongoing production, with previously recognised surplus value gradually being recognised as profit upon completion and sale. The building rights portfolio has also decreased compared to last year which was partially offset by lower discount rates. Geographic spread, number of homes Germany, 30% Sweden, 33% Finland, 13% Baltics, 24% Potential production start 2026–2027, 21% 2028–2029, 26% Later, 53% On/Off-balance sheet Options and conditional contracts, 33% On balance sheet, 67% Building rights portfolio Number of building rights 24,200 (24,800) Bonava Interim report January–September 2026 9

Page 10

During the quarter, Bonava started production on 947 housing units (708), of which 441 (708) for consumers, 506 (0) for investors and none (0) were investment properties. The number of housing units in ongoing production increased to 4,931 (3,836), and all business units except Germany increased the number of housing units in ongoing production. At the end of the preceding quarter, this number was 4,455. The sales rate was 64 per cent (57) on the balance sheet date. Housing units sold The number of housing units sold during the quarter was 959 (456). The corresponding figure for the preceding quarter was 535. The number of housing units sold to consumers was 453 (456), while 506 housing units (0) were sold to investors. Unsold completed housing units As of the end of the quarter, the number of unsold completed housing units was 214 (274), and the carrying amount totalled SEK 533 M (735). The corresponding figure for the preceding quar- ter was 189 housing units. All business units except the Baltics reduced the number of units during the year. The carrying amount corresponds to production costs incurred and does not include the expected profit mark-up. There is a strong focus on minimising the tied-up capital in the stock of unsold completed housing units, and 13 per cent of the opening volume as of 30 June 2026 was sold during the third quar- ter. The majority of the unsold volume comprises housing units in the Baltics, where the business model implies that the greater part of the sales take place relatively close to completion. Sold completed housing units not recognised in profit The number of sold completed housing units not recognised in profit at the end of the period was 21 (23). As of 30 June 2026, that figure was 24. The sales value of housing units sold in production and com- pleted housing units sold but not yet recognised in profit at the end of the quarter was SEK 6,789 M (5,646) for consumers and SEK 4,170 M (2,715) for investors. Production starts Number 0 500 1,000 1,500 2,000 2,500 3,000 Q3Q2Q1 2026 Q4Q3Q2Q1 2025 Q4 Q3 2024 Production starts, investor Production starts, consumer Production starts, investment properties Production starts, R12 Housing units sold Number 0 500 1,000 1,500 2,000 2,500 3,000 Q3Q2Q1 2026 Q4Q3Q2 Q1 2025 Q4 Q3 2024 Housing units sold, investor Housing units sold, consumer Housing units sold, R12 Ongoing production Number % 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 Q3 Q2Q1 2026 Q4Q3Q2Q1 2025 Q4 Q3 2024 0 10 20 30 40 50 60 70 80 90 100 Housing units in ongoing production, investor Housing units in ongoing production, consumer Housing units in ongoing production, investment properties Sold housing units in ongoing production, investor and consumer, % Ongoing production and completed housing units Bonava Interim report January–September 2026 10

Page 11

Cash flow July– September 2026 EBITDA increased year-on-year and amounted to SEK 105 M (–7). Changes in working capital negatively impacted cash flow by SEK –629 M (108), due primarily to lower levels of customer advances and lower net inflows from acquisitions and sale of land. These impacts were partially offset by lower levels of tied-up capi- tal in project assets compared with the previous year. Cash flow before financing and tax was SEK –536 M (95). Refer to Note 5 for a bridge between reported cash flow and cash flow before financing and tax. Cash flow January–September 2026 EBITDA increased and amounted to SEK 183 M (90). Changes in working capital negatively impacted cash flow by SEK –1,293 M (59). This development is due primarily to increased tied-up capi- tal in project assets and lower net inflows from acquisitions and sale of land. The higher capital tied up in project assets compared with the previous year is mainly attributable to Germany, where several projects started in 2025 remain under construction, result- ing in higher investments in 2026. These impacts were partially offset by higher levels of customer advances compared with the previous year. Cash flow before financing and tax was SEK –1,128 M (136). Refer to Note 5 for a bridge between reported cash flow and cash flow before financing and tax. Cash flow before financing and tax SEK M –800 –600 –400 –200 0 200 400 600 800 1,000 Q3Q2Q1 2026 Q4 Q3Q2 Q1 2025 Q4 Q3 2024 Cash flow before financing and tax SEK M 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep Oct 2025 –Sep 2026 2025 Jan–Dec EBITDA 105 –7 183 90 541 448 Change in project assets –678 –903 –1,529 –603 –1,081 –155 Change in land 70 393 –38 381 96 515 Change in customer advances 32 537 558 397 –150 –311 Change in other working capital –53 80 –285 –115 –311 –141 Change in working capital –629 108 –1,293 59 –1,444 –92 Net investments in tangible and intangible assets –12 –6 –18 –13 –21 –16 Net investments –12 –6 –18 –13 –21 –16 Cash flow before financing and tax –536 95 –1,128 136 –926 337 Bonava monitors the operation’s cash generation using the key performance indicator cash flow before financing and tax. This measure is based on EBITDA and is adjusted for changes in working capital as well as net investments in tangible and intangible fixed assets. This measure corresponds to the one that was previously designated operating cash flow, but has now been adjusted for currency effects. The company’s calculation principles remain otherwise unchanged. This measure excludes the effects of financing, tax and changes in financial assets, and is used to monitor the operation’s cash gener- ation before financing. In the internal monitoring, no transfers are made between sub-items for non-cash effects, except for deprecia- tion/amortisation. This means that changes in individual items may deviate from the cash flow statement according to IAS 7, whereas the cash flow before financing and tax remains unchanged. As of the third quarter of 2026, currency translation effects previously included in Changes in other working capital are excluded. Comparative figures have been recalculated applying the same principle. Cash flow Bonava Interim report January–September 2026 11

Page 12

New financing secured, and share of project financing increasing Bonava’s objective is to achieve a cost-efficient capital structure and a good credit rating, taking into account the financing needs of the operation. The Parent Company finances the operations mainly through a syndicated credit agreement and a green bond, as well as local project financing. To ensure a robust capital struc- ture, Bonava monitors the following key ratios: the equity/assets ratio, liquidity and project loan-to-value ratios. The previous syndicated loans and remaining green bond were repaid during the quarter. At the same time the new syndicated loans that had been signed in the previous quarter were disbursed. The bond was refinanced in the previous quarter. The credit agreement amounts to EUR 200.5 M, of which EUR 150.5 M com- prises a revolving credit facility. The loans mature in June 2028, with the possibility of a two-year extension. The agreement also contains an amortisation of EUR 20 M in June 2027 as well as an additional amortisation of EUR 20 M in June 2028. This refinanc- ing will result in SEK 67 M in non-recurring effects, of which SEK 29 M is being reported in the current quarter while SEK 39 M was reported in the previous quarter. Net debt and financial position Net debt amounted to SEK 4,786 M (3,054). The planned increase in ongoing projects, financed through external project financing, explains the increase in net debt. As approximately 1,000 homes are expected to be handed over to customers in the fourth quarter, net debt is expected to decrease significantly by year-end. Cash and cash equivalents amounted to SEK 274 M, excluding cash held in housing associations. Unutilised credit facilities at central and project level amounted to SEK 1,533 M. Refer further to Note 7. Exchange rate fluctuations increased net debt by SEK 64 M compared with 30 September 2025, and by SEK 58 M compared with 30 June 2026. The equity/assets ratio was 38.3 per cent (40.6). Bonava’s target is for the equity/assets ratio not to fall below 30 per cent. To ensure control of financial risk, Bonava’s target is for the Group’s net project asset value to exceed net debt (excluding leases). On the balance sheet date, the net project asset value amounted to 1.3 times net debt, and the target has therefore been met. Tied-up capital and covenants The average fixed-rate term at the end of the period, accounting for contracted interest rate swaps, was 0.4 years (0.5) for central financing, and the average interest rate was 5.83 per cent (6.86). The average interest rate for project financing was 5.37 per cent. The maturity rate of tied-up capital for liabilities to credit institu- tions and investors was 1.8 years at the end of the period. Bonava’s syndicated loans include four covenants: equity/assets ratio, EBIT, the ratio of net project asset value to adjusted debt, and interest coverage ratio. All of the covenants had been fulfilled as of the balance sheet date. Green financing and credit frameworks Bonava has had a green financing framework since 2020, which was updated in January 2025. Under this framework, Bonava can issue bonds and raise loans to fund sustainable residential devel- opment. During the year, Bonava issued a green bond of SEK 1,500 M that is listed on the Nasdaq Sustainable Bond List and matures in December 2029. Other green loans amounted to SEK 1,756 M (2,288). On the balance sheet date, outstanding centrally held bank loans raised in EUR amounted to SEK 2,029 M and unutilised amounts on the central credit facility totalled SEK 243 M. In addition to the above, there are contractual credit frames for project financing for the Baltics, Finland, Sweden and Germany that all together total SEK 2,479 M, of which unutilised credits amounted to SEK 1,290 M. Bonava’s ambition is to continue to increase the share of project financing, thereby decreasing the share of centrally held credits. Net debt SEK M 0 2,000 4,000 6,000 8,000 Q3Q2Q1 2026 Q4Q3Q2Q1 2025 Q4 Q3 2024 Central financing and other Leasing Project financing Tied-up capital, loans and bond SEK M 0 500 1,000 1,500 2,000 2,500 2029202820272026 Capital maturity, utilised credits Capital maturity, unutilised credits Financing and net debt Bonava Interim report January–September 2026 12

Page 13

Units sold and started Number 0 250 500 750 1,000 1,250 1,500 Q3Q2Q1 2026 Q4Q3Q2Q1 2025 Q4 Q3 2024 Sold, consumer and investor, R12 Started, consumer and investor, R12 Market trend There is still a shortage of housing units in Germany. The continued rise in long-term interest rates means that customers are postpon- ing their investment decisions. The growth markets of Berlin, Düsseldorf and Cologne remain stable. Rental levels continued to rise while vacancy levels are low, particularly in metropolitan areas, providing good conditions for investor transactions over the long term. However, this segment weakened significantly during the quarter, as we noted demand for subsidised rental apartments but weak demand for standard rental apartments projects. Earnings July– September 2026 Net sales decreased slightly to SEK 1,420 M (1,451). The number of housing units in production decreased to 1,952 (2,031). The sales rate for ongoing production is good, amounting to 64 per cent (66). Housing units sold to consumers were in line with the preceding year and amounted to 150 (158). Production starts for consumers decreased to 164 (227). No (0) housing units for investors were started or sold in the quarter. The gross margin decreased to 12.4 per cent (14.0) as a result of price adjustments implemented primarily on leisure housing on the Baltic coast and projects in Saxony. EBIT amounted to SEK 112 M (142) with an EBIT margin of 7.9 per cent (9.8). Slightly higher selling and administrative expenses, alongside lower volumes in sales as well as lower margins in ongoing production, resulted in a lower EBIT compared to the previous year. Earnings January– September 2026 Net sales decreased to SEK 3,719 M (3,807). Housing units sold to consumers decreased year-on-year, total- ling 412 (545). Production starts for consumers decreased to 343 (646), and no (0) projects for investors were started or sold to date during the year. The gross margin decreased to 13.3 per cent (13.7). The lower margins are attributable primarily to price adjustments on leisure housing on the Baltic coast and Saxony. EBIT amounted to SEK 324 M (352) with an EBIT margin of 8.7 per cent (9.2). KEY RATIOS, SEK M 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep Oct 2025 –Sep 2026 2025 Jan–Dec Net sales 1,420 1,451 3,719 3,807 5,392 5,480 Gross profit 176 203 496 522 746 773 Gross margin, % 12.4 14.0 13.3 13.7 13.8 14.1 EBIT 112 142 324 352 519 547 EBIT margin, % 7.9 9.8 8.7 9.2 9.6 10.0 Number of housing units sold, consumer 150 158 412 545 614 747 Number of housing units sold, investor – – – – 354 354 Number of production starts, consumer 164 227 343 646 618 921 Number of production starts, investor – – – – 354 354 Number of housing units in ongoing production 1,952 2,031 1,952 2,031 1,952 2,156 Sales rate for ongoing production, % 64 66 64 66 64 64 Unsold completed housing units 36 46 36 46 36 47 Number of building rights 7,200 7,500 7,200 7,500 7,200 7,000 EBIT and EBIT margin SEK M % 0 50 100 150 200 Q3Q2Q1 2026 Q4Q3Q2Q1 2025 Q4Q3 2024 0 3 6 9 12 EBIT, Q, SEK M EBIT margin, R12, % Germany Germany is Bonava’s largest market. Bonava is one of Germany’s most active residential developers, and builds housing units in Berlin, Hamburg, Cologne/Bonn, Stuttgart, Leipzig, Dresden, Frankfurt, Düsseldorf, Mannheim and the metropolitan regions of Rhine-Ruhr, Rhine-Main, Rhine-Neckar and the Baltic coast. We offer apartments and single-family homes to consumers, and rental projects to investors. Bonava Interim report January–September 2026 13

Page 14

Market trend Performance in the housing market has gradually improved, and we are seeing positive signs associated with real household incomes and increased expectations for rising housing prices. This trend remains evident, particularly in major cities where the price trend has been robust. Interest in new construction remains high, and new projects have been well received. Activity levels in the transaction market have increased, and there is significant interest from investors in expand- ing their portfolios with newly produced, energy-efficient housing units. Households have adjusted to the key interest rate, but we con- tinue to see protracted decision-making processes – and increased interest closer to completion – linked to uncertainty about how per- sonal finances will be affected by geopolitical turbulence. Earnings July– September 2026 Net sales increased to SEK 357 M (342), as a result of a greater number of housing units in ongoing production, a higher sales rate and a higher development rate in ongoing production. Housing units in ongoing production increased to 1,463 (629) with a high sales rate of 75 per cent (62). Housing units sold to consumers totalled 69 (69), and produc- tion of 62 housing units (153) was started. The number of housing units started and sold to investors for the quarter was 506 (0). The gross margin increased to 12.9 per cent (10.4). EBIT improved to SEK 24 M (10) with an EBIT margin of 6.7 per cent (3.0), driven by both higher volumes and improved project profitability. Earnings January– September 2026 Net sales rose to SEK 1,180 M (737), driven by a higher number of housing units in production, a higher sales rate and higher project completion in the projects. Housing units sold to consumers increased to 232 (148), and production of 223 housing units (282) was started. The number of housing units started and sold to inves- tors was 506 (231). The gross margin increased to 12.7 per cent (10.4). EBIT improved to SEK 79 M (–11) with an EBIT margin of 6.7 per cent (–1.5), driven by both higher volumes and improved project profitability. Units sold and started Number 0 200 400 600 800 1,000 Q3Q2Q1 2026 Q4Q3Q2Q1 2025 Q4 Q3 2024 Sold, consumer and investor, R12 Started, consumer and investor, R12 KEY RATIOS, SEK M 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep Oct 2025 –Sep 2026 2025 Jan–Dec Net sales 357 342 1,180 737 1,631 1,188 Gross profit 46 36 150 77 222 149 Gross margin, % 12.9 10.4 12.7 10.4 13.6 12.5 EBIT 24 10 79 –11 122 32 EBIT margin, % 6.7 3.0 6.7 –1.5 7.5 2.7 Number of housing units sold, consumer 69 69 232 148 298 214 Number of housing units sold, investor 506 – 506 231 597 322 Number of production starts, consumer 62 153 223 282 401 460 Number of production starts, investor 506 – 506 231 597 322 Number of housing units in ongoing production 1,463 629 1,463 629 1,463 859 Sales rate for ongoing production, % 75 62 75 62 75 58 Unsold completed housing units 16 42 16 42 16 35 Number of building rights 7,900 8,100 7,900 8,100 7,900 7,800 EBIT and EBIT margin SEK M % –30 –20 –10 0 10 20 30 40 50 60 Q3Q2Q1 2026 Q4Q3Q2Q1 2025 Q4Q3 2024 –9 –6 –3 0 3 6 9 12 15 18 EBIT, Q, SEK M EBIT margin, R12, % Sweden In Sweden, Bonava offers apartments and single-family homes to consumers in Stockholm, Gothenburg, Linköping, Uppsala, Umeå and Luleå. We also offer rental housing projects to investors. Bonava Interim report January–September 2026 14

Page 15

Market trend The housing market in Finland is concentrated in Helsinki as well as the cities of Tampere and Turku. The housing market has been impacted by higher interest rates, inflation, and low levels of cus- tomer activity. The geopolitical turbulence was a contributing factor to recovery remaining sluggish, but positive momentum in macro- statistics – including GDP forecasts that were revised upward – was noted during the quarter. Meanwhile, the offering of new housing units continues to decrease, and prices have begun to stabilise. Earnings July– September 2026 Net sales decreased year-on-year to SEK 94 M (131) owing to a lower sales rate and development rate in ongoing production. Housing units in ongoing production increased to 258 (191). The sales rate for ongoing production decreased to 43 per cent (53). During the quarter, 35 housing units (11) were sold to consumers and 67 (92) started production. Now only 12 unsold completed housing units (45) remain. The number of housing units started and sold to investors was 0 (0). The gross margin increased to 32.3 per cent (12.8) as a result of higher project margins in both ongoing and completed projects. EBIT amounted to SEK 16 M (–4) with an EBIT margin of 17.1 per cent (–3.2). Earnings January– September 2026 Net sales decreased year-on-year to SEK 304 M (479) owing to a lower sales rate and a lower degree of completion in ongoing production. During the year, 64 housing units (37) were sold to consumers and 105 (92) were started. The number of housing units started and sold to investors during the period was 61 (0). The gross margin increased to 21.0 per cent (14.5) as a result of healthy project margins in both ongoing and completed projects. EBIT amounted to SEK 6 M (4) with an EBIT margin of 2.0 per cent (0.9). KEY RATIOS, SEK M 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep Oct 2025 –Sep 2026 2025 Jan–Dec Net sales 94 131 304 479 431 606 Gross profit 30 17 64 70 82 88 Gross margin, % 32.3 12.8 21.0 14.5 19.1 14.5 EBIT 16 –4 6 4 4 3 EBIT margin, % 17.1 –3.2 2.0 0.9 1.0 0.5 Number of housing units sold, consumer 35 11 64 37 80 53 Number of housing units sold, investor – – 61 – 61 – Number of production starts, consumer 67 92 105 92 105 92 Number of production starts, investor – – 61 – 61 – Number of housing units in ongoing production 258 191 258 191 258 145 Sales rate for ongoing production, % 43 53 43 53 43 41 Unsold completed housing units 12 45 12 45 12 34 Number of building rights 3,200 3,200 3,200 3,200 3,200 3,200 Units sold and started Number 0 50 100 150 200 250 Q3Q2Q1 2026 Q4Q3Q2Q1 2025 Q4 Q3 2024 Sold, consumer and investor, R12 Started, consumer and investor, R12 EBIT and EBIT margin SEK M % –30 –20 –10 0 10 20 30 40 Q3Q2Q1 2026 Q4Q3Q2Q1 2025 Q4Q3 2024 –6 –4 –2 0 2 4 6 8 EBIT, Q, SEK M EBIT margin, R12, % Finland In Finland, Bonava is active in regions of Helsinki, Tampere and Turku. We offer apartments for consumers and rental projects for investors. Bonava Interim report January–September 2026 15

Page 16

Market trend The favourable market conditions in the Baltic markets remain, with a low level of unemployment and a lack of supply of modern hous- ing units. The prices for new housing units are stable in all markets. Disposable income increased for households in all submarkets during the quarter. Activity levels in the housing markets in Riga and Vilnius remain high. Tallinn has been impacted by a high supply, with sales at stable but lower levels. The low standard in the existing housing stock, combined with growing demand for rental housing, presents good opportunities over the long term for this business as well. Earnings July– September 2026 Net sales rose to SEK 344 M (243), driven primarily by an increase in the number of housing units in ongoing production. Housing units in ongoing production increased to 1,258 (985). Housing units sold to consumers decreased to 199 (218). The sales rate for ongoing production is high and amounted to 55 per cent (38). Production starts to consumers totalled 148 (236). Gross profit rose to SEK 64 M (46) and the gross margin was 18.8 per cent (18.9) as a result of healthy margins in ongoing pro- duction. EBIT improved to SEK 62 M (33) with an EBIT margin of 18.1 per cent (13.7), driven by both higher volumes and margins as well as a positive change in value of investment properties of SEK 11 M. Earnings January– September 2026 Net sales rose to SEK 822 M (591), driven by an increase in the number of housing units in ongoing production. Housing units sold to consumers increased to 648 (516). Pro- duction starts to consumers increased to 674 (522). Production of 59 B2M housing units (0) has started in Vilnius. Gross profit rose to SEK 164 M (97) and the gross margin increased to 19.9 per cent (16.4) as a result of higher project mar- gins in both ongoing and completed projects. EBIT increased to SEK 134 M (59) with an EBIT margin of 16.3 per cent (9.9), driven by both higher volumes and improved project profitability. KEY RATIOS, SEK M 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep Oct 2025 –Sep 2026 2025 Jan–Dec Net sales 344 243 822 591 1,174 943 Gross profit 64 46 164 97 242 175 Gross margin, % 18.8 18.9 19.9 16.4 20.6 18.6 EBIT 62 33 134 59 198 123 EBIT margin, % 18.1 13.7 16.3 9.9 16.9 13.1 Number of housing units sold, consumer 199 218 648 516 835 703 Number of production starts, consumer 148 236 674 522 778 626 Number of production starts, investment properties – – 59 – 59 – Number of housing units in ongoing production 1,258 985 1,258 985 1,258 921 Of which, investment properties 59 – 59 – 59 – Sales rate for ongoing production, % 55 38 55 38 55 38 Unsold completed housing units 150 141 150 141 150 96 Number of building rights 5,900 6,000 5,900 6,000 5,900 5,800 Units sold and started Number 0 200 400 600 800 1,000 Q3 Q2Q1 2026 Q4Q3Q2Q1 2025 Q4 Q3 2024 Sold, consumer and investor, R12 Started, consumer and investor, R12 EBIT and EBIT margin SEK M % 0 10 20 30 40 50 60 70 Q3Q2Q1 2026 Q4Q3Q2Q1 2025 Q4Q3 2024 0 3 6 9 12 15 18 21 EBIT, Q, SEK M EBIT margin, R12, % Baltics The Baltics segment comprises the capital cities of Tallinn, Estonia; Riga, Latvia; and Vilnius in Lithuania. The offering primarily consists of apartments for consumers, which are supplemented by rental projects for investors. Bonava Interim report January–September 2026 16

Page 17

Significant risks and uncertainties Bonava’s operations are exposed to various types of risks, both operational and financial. During the next 12-month period, there are a number of uncertainties that could affect our operations and sales. For further information on material risks and risk man- agement, refer to pages 48–50 of Bonava’s Annual and Sustain- ability Report for 2025, which is available at bonava.com. Organisation and employees The average number of employees in continuing operations for the period from January to September 2026 was 889 (872). The Bonava share Bonava has two share classes, Class A and Class B. Each Class A share carries ten votes and each Class B share one vote. Bonava’s share capital was SEK 538 M on the balance sheet date, divided among 322,816,756 shares and 587,854,372 votes. The number of Class A shares as of the balance sheet date was 29,448,624, and the number of Class B shares was 293,368,132. The number of Class B shares in treasury was 1,196,098, corresponding to 0.4 per cent of the capital and 0.2 per cent of the votes. More information on the Bonava share and owners is available at bonava.com/en/investors. Significant events during the period No significant events took place during the period. Significant events after the end of the period No significant events took place after the end of the period. Amounts and dates Unless otherwise stated, amounts are indicated in millions of Swedish kronor (SEK M). All comparative figures in this report refer to the corresponding period of the previous year. Rounding differences may occur. Stockholm, 22 October 2026 Bonava AB (publ) Peter Wallin President and CEO Other information Mäepealse, Tallinn, Estonia Bonava Interim report January–September 2026 17

Page 18

Outlook for 2026 (updated) • For full-year 2026, the EBIT margin is expected to amount to approximately 7 per cent (excluding potential restructuring costs) compared to the previ- ous outlook of 8–9 per cent. • For full-year 2026, net sales are expected to grow by approximately 10 per cent compared with 2025 (adjusted for currency effects). The previous fore- cast was for an increase of 20–25 per cent. One fundamental condition for the previous outlook was that Bonava would be able to increase the number of housing starts towards its long-term target of 3,500 units. As the number of housing starts in 2026 will be lower than planned and projects having been postponed, the outlook has been revised. The change is primarily driven by fewer project starts to investors in the German market. Comments on the outcomes The financial targets continue to improve compared to the previous quarter, with the EBIT margin increasing from 7.6 per cent to 7.8 per cent, rolling 12 months. Return on equity increased to 2.4 per cent from 2.1 per cent in the previous quarter. The CSAT outcome for the quarter is in line with the target. The frequency of severe incidents was 4.8, which is lower compared with the preceding year and a reduction versus the year-end figure. The Every- one Plan is proceeding according to plan. The outcome for Employee engagement comes from the latest survey, which was completed in the second quarter of 2026. The next survey will be conducted during the fourth quarter. In addition to the above targets, Bonava undertakes to ensure that new equipment owned or financially controlled by the company in its project portfolios and installed beginning on 1 July 2030 will not be powered by fossil fuels. Our targets Financial targets, segment reporting Target Outcome EBIT margin, R12, % ≥10 7.8 Return on equity, R12, % ≥15 2.4 Dividend on Group earnings after tax, % 40 01) Other strategic targets Target Outcome Customer Satisfaction (CSAT) 83 83 Frequency of severe incidents, R12 <7.1 4.8 Everyone Plan fulfilment, % ≥90 562) Employee engagement 89 87 Emissions, Scope 1–2, absolute numbers, % –42 –171) Emissions, Scope 3, capital goods per sqm, % –40.8 –81) Emissions, Scope 3, from sold products per sqm, % –51.6 41) 1) Pertains to financial year 2025. 2) The target pertains to activities that are planned for the calendar year, and the outcome pertains to activities that have been carried out to date. Bonava Interim report January–September 2026 18

Page 19

Consolidated income statement – segment reporting SEK M Note 1 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep Oct 2025 –Sep 2026 2025 Jan–Dec Net sales 3 2,216 2,167 6,026 5,615 8,629 8,218 Production costs –1,903 –1,869 –5,158 –4,854 –7,348 –7,045 Gross profit 313 299 868 761 1,281 1,173 Selling and administrative expenses –155 –151 –462 –470 –617 –625 Change in value of investment properties 11 – 11 – 11 – EBIT 168 148 417 291 674 548 Financial income 19 44 40 149 75 185 Financial expenses –142 –131 –385 –478 –520 –613 Net financial items 6 –123 –87 –345 –329 –445 –428 Profit/loss before tax 45 60 72 –38 230 119 Tax on profit/loss for the period –9 –44 –77 –78 –67 –68 Profit/loss for the period1) 36 16 –5 –116 163 52 Per share data before and after dilution Profit/loss for the period, SEK 0.11 0.05 –0.02 –0.36 0.51 0.16 Cash flow from operating activities, SEK –1.75 0.09 –5.28 0.09 –4.55 0.82 Shareholders’ equity, SEK 21.21 21.08 21.21 21.08 21.21 21.61 No. of shares at end of period, millions2) 321.6 321.6 321.6 321.6 321.6 321.6 1) Profit/loss for the entire period is attributable to Bonava AB’s shareholders. 2) The total number of shares repurchased as of the balance sheet date was 1,196,098 (1,231,889). Bonava Interim report January–September 2026 19

Page 20

Consolidated income statement Consolidated state- ment of comprehen- sive income SEK M Note 1 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep Oct 2025 –Sep 2026 2025 Jan–Dec Net sales 3 1,511 1,201 3,992 4,473 7,244 7,725 Production costs –1,283 –1,079 –3,418 –3,979 –6,177 –6,738 Gross profit 229 123 574 494 1,067 987 Selling and administrative expenses –155 –151 –462 –470 –617 –625 Change in value of investment properties 11 – 11 – 11 – EBIT 85 –28 123 24 460 362 Financial income 19 44 40 149 75 185 Financial expenses –142 –131 –385 –478 –520 –613 Net financial items 6 –123 –87 –345 –329 –445 –428 Profit/loss before tax –39 –116 –222 –305 16 –67 Tax on profit/loss for the period 12 –1 –6 –13 –15 –22 Profit/loss for the period1) –27 –117 –228 –318 1 –89 Per share data before and after dilution Profit/loss for the period, SEK –0.08 –0.36 –0.71 –0.99 0.00 –0.28 Cash flow from operating activities, SEK –1.75 0.09 –5.28 0.09 –4.55 0.82 Shareholders’ equity, SEK 21.21 21.08 21.21 21.08 21.21 21.61 No. of shares at end of period, millions2) 321.6 321.6 321.6 321.6 321.6 321.6 1) Profit/loss for the entire period is attributable to Bonava AB’s shareholders. 2) The total number of shares repurchased as of the balance sheet date was 1,196,098 (1,231,889). SEK M Note 1 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep Oct 2025 –Sep 2026 2025 Jan–Dec Profit/loss for the period –27 –117 –228 –318 1 –89 Items that have been or could be transferred to profit for the period Translation differences during the period in translation of foreign operations 47 –11 104 –93 46 –150 Other comprehensive income for the period 47 –11 104 –93 46 –150 Comprehensive income for the period1) 20 –128 –124 –411 47 –239 1) Profit/loss for the entire period is attributable to Bonava AB’s shareholders. Bonava Interim report January–September 2026 20

Page 21

Condensed consolidated balance sheet Condensed consolidated changes in shareholders’ equity SEK M Note 1, 8 30 Sep 2026 30 Sep 2025 31 Dec 2025 ASSETS Fixed assets Investment properties 9 292 274 268 Other fixed assets 385 532 461 Total fixed assets 677 806 729 Current assets Properties held for future development 6,568 6,572 6,331 Ongoing housing projects 8,601 7,091 6,598 Completed housing units 615 829 727 Current receivables 1,001 1,012 1,043 Cash and cash equivalents 7 334 394 220 Total current assets 17,119 15,898 14,919 TOTAL ASSETS 17,796 16,704 15,647 SEK M Note 1 30 Sep 2026 30 Sep 2025 31 Dec 2025 SHAREHOLDERS’ EQUITY Shareholders’ equity attributable to Parent Company shareholders 6,821 6,774 6,945 Non-controlling interest – 5 5 Total shareholders’ equity 6,821 6,779 6,950 LIABILITIES Non-current liabilities Non-current interest-bearing liabilities 7 4,262 3,724 2,835 Other non-current liabilities 31 5 5 Non-current provisions 467 505 490 Total non-current liabilities 4,760 4,234 3,330 Current liabilities Current interest-bearing liabilities 7 1,033 375 804 Other current liabilities 5,079 5,126 4,404 Current provisions 103 190 159 Total current liabilities 6,215 5,691 5,367 Total liabilities 10,975 9,925 8,697 TOTAL SHAREHOLDERS’ EQUITY AND LIABILITIES 17,796 16,704 15,647 SEK M Shareholders’ equity attributable to the Parent Company’s shareholders, SEK M Non-controlling interest Total shareholders’ equity Opening shareholders’ equity, 1 January 2025 7,184 5 7,189 Comprehensive income for the period –239 –239 Performance-based incentive programme 0 0 Closing shareholders’ equity, 31 December 2025 6,945 5 6,950 Comprehensive income for the period –124 –124 Transactions with non-controlling interests –1 –5 –6 Performance-based incentive programme 1 1 Closing shareholders’ equity, 30 September 2026 6,821 – 6,821 Bonava Interim report January–September 2026 21

Page 22

Condensed consolidated cash flow statement SEK M 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep Oct 2025 –Sep 2026 2025 Jan–Dec OPERATING ACTIVITIES Profit/loss after financial items –39 –116 –222 –305 16 –67 Adjustments for items not included in cash flow –150 13 –291 155 –170 276 Tax paid –6 –5 –142 –18 –132 –8 Cash flow from operating activities before change in working capital –195 –108 –655 –167 –287 201 Cash flow from change in working capital Net investments in projects –678 –903 –1,529 –603 –1,078 –153 Net investments in land 283 376 171 362 304 495 Change in customer advances 32 537 558 397 –149 –311 Other changes in working capital –5 126 –244 40 –254 31 Cash flow from change in working capital –369 137 –1,043 196 –1,177 62 Cash flow from operating activities –563 30 –1,699 28 –1,464 263 INVESTMENT ACTIVITIES Disposal of operations 283 – 496 – 539 43 Cash flow from investment activities –8 –7 –20 –14 –22 –16 Cash flow before financing activities –287 23 –1,223 14 –948 290 FINANCING ACTIVITIES Loans raised – central financing 2,536 124 3,222 511 3,495 783 Repayment of loans – central financing –2,311 –116 –2,587 –825 –3,469 –1,707 Loans raised – project financing 261 191 845 376 1,027 558 Repayment of loans – project financing –35 0 –102 –226 –102 –226 Net change in interest-bearing receivables – – – – –6 –6 Repayments of lease liabilities –13 –13 –37 –42 –51 –56 Transactions with non-controlling interests –6 – –6 – –6 – Cash flow from financing activities 432 185 1,335 –206 887 –654 CASH FLOW DURING THE PERIOD 145 208 112 –192 –60 –364 Cash and cash equivalents at start of period 188 186 220 593 394 593 Exchange rate difference in cash and cash equivalents 1 –1 3 –7 1 –9 CASH AND CASH EQUIVALENTS AT PERIOD END 334 394 334 394 334 220 As of 2026, Bonava classifies its cash flows attributable to project financing under financing activities instead of in cash flow from operating activities, where it had been included previously. This change has been made to better reflect the financial nature of project financing and to increase comparability with industry practice, as well as transparency in the cash flow statement. The comparative figures have been recalculated. Bonava Interim report January–September 2026 22

Page 23

Notes for the Group 1 Accounting policies This Interim Report has been prepared in accordance with IAS 34 Interim Financial Reporting, the Swedish Annual Accounts Act and recommendation RFR 1 Supplementary Accounting Rules for Groups from the Swedish Financial Reporting Board. The account- ing policies and material assessments and estimates applied in the preparation of this Interim Report apply to all periods and comply with those presented in Bonava’s 2025 Annual Report. The Annual Report is available at bonava.com. Bonava monitors and governs its operation on the basis of the Group’s segment reporting. The difference from IFRS pertains to the point in time of recognition for revenue and expenses. For a descrip- tion of segment reporting, refer to the introductory description on page 3 and Note 2 in the 2025 Annual Report. 2 Reporting of operating segments 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep 2025 Jan–Dec SEK M Segment IFRS Segment IFRS Segment IFRS Segment IFRS Segment IFRS Net sales Germany 1,420 1,078 1,451 794 3,719 2,618 3,807 2,888 5,480 5,411 Sweden 357 246 342 192 1,180 672 737 498 1,188 723 Finland 94 10 131 84 304 181 479 614 606 750 Baltics 344 177 243 132 822 520 591 471 943 839 Other operations1) 0 0 0 0 1 1 1 1 1 1 Total net sales 2,216 1,511 2,167 1,201 6,026 3,992 5,615 4,473 8,218 7,725 EBIT Germany 112 95 142 4 324 170 352 110 547 424 Sweden 24 4 10 –12 79 15 –11 –57 32 –47 Finland 16 1 –4 2 6 –17 4 50 3 38 Baltics 62 31 33 11 134 80 59 34 123 104 Other operations1) –46 –46 –34 –34 –125 –125 –113 –113 –157 –157 Total EBIT 168 85 148 –28 417 123 291 24 548 362 Net financial items –123 –123 –87 –87 –345 –345 –329 –329 –428 –428 Profit/loss before tax 45 –39 60 –116 72 –222 –38 –305 119 –67 Tax on profit/loss for the period –9 12 –44 –1 –77 –6 –78 –13 –68 –22 Profit/loss for the period 36 –27 16 –117 –5 –228 –116 –318 52 –89 1) Other operations consist of the Parent Company, Group adjustments, eliminations and the Danish operation. Bonava Interim report January–September 2026 23

Page 24

3 Net sales Germany Sweden Finland Baltics Other operations Group Jul–Sep, SEK M 2026 2025 2026 2025 2026 2025 2026 2025 2026 2025 2026 2025 Net sales, consumers 1,149 1,199 266 155 53 44 339 237 – – 1,807 1,635 Net sales, investors 271 219 81 39 41 87 – – – – 393 345 Net sales, land 0 33 8 148 0 0 – – – – 9 181 Other revenue 0 0 2 0 0 0 5 5 0 0 8 6 Total net sales, segment reporting 1,420 1,451 357 342 94 131 344 243 0 0 2,216 2,167 Differences in accounting policies –342 –658 –112 –150 –84 –47 –167 –111 – – –705 –966 Total net sales, IFRS 1,078 794 246 192 10 84 177 132 0 0 1,511 1,201 Germany Sweden Finland Baltics Other operations Group Jan–Sep, SEK M 2026 2025 2026 2025 2026 2025 2026 2025 2026 2025 2026 2025 Net sales, consumers 2,877 2,911 782 502 165 142 807 575 – – 4,630 4,129 Net sales, investors 816 723 292 53 138 337 – – – – 1,246 1,112 Net sales, land 26 173 101 178 0 0 – – – – 127 351 Other revenue 0 0 5 4 1 1 16 16 1 1 22 23 Total net sales, segment reporting 3,719 3,807 1,180 737 304 479 822 591 1 1 6,026 5,615 Differences in accounting policies –1,100 –918 –509 –240 –123 135 –302 –120 – – –2,034 –1,142 Total net sales, IFRS 2,618 2,888 672 498 181 614 520 471 1 1 3,992 4,473 Germany Sweden Finland Baltics Other operations Group Jan–Dec, SEK M 2025 2025 2025 2025 2025 2025 Net sales, consumers 4,105 794 209 882 – 5,991 Net sales, investors 1,133 134 396 – – 1,662 Net sales, land 242 253 – 39 – 534 Other revenue 0 6 1 22 1 31 Total net sales, segment reporting 5,480 1,188 606 943 1 8,218 Differences in accounting policies –68 –465 145 –104 0 –493 Total net sales, IFRS 5,411 723 750 839 1 7,725 Bonava is exposed to exchange-rate changes, primarily in EUR, as a result of operations in subsid- iaries outside Sweden. The table below shows how changes in exchange rates have impacted net sales through this translation effect of subsidiaries outside Sweden. The calculation applied the average exchange rate of the comparative period to sales for the period in local currencies for the subsidiaries outside Sweden. SEK M Jul–Sep Jan–Sep Net sales 2025 2,167 5,615 Currency effect 0% –2% Growth adjusted for currency 3% 9% Reported growth 2% 7% Net sales 2026 2,216 6,026 Bonava Interim report January–September 2026 24

Page 25

5 Bridge, cash flow before financing and tax SEK M 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep Oct 2025 –Sep 2026 2025 Jan–Dec Cash flow before financing and tax –536 95 –1,128 136 –926 337 Net financial items –244 –66 –665 –104 –644 –82 Disposal of operations 283 – 496 – 539 43 Tax paid –6 –5 –142 –18 –132 –8 Other adjustments 216 – 216 – 216 – Cash flow before financing activities –287 23 –1,223 14 –948 290 4 Bridge, EBIT Germany Sweden Finland Baltics Other operations Group Jul–Sep, SEK M 2026 2025 2026 2025 2026 2025 2026 2025 2026 2025 2026 2025 EBIT under segment reporting 112 142 24 10 16 –4 62 33 –46 –34 168 148 Differences in accounting policies –18 –138 –20 –22 –15 6 –32 –22 – – –84 –176 EBIT 95 4 4 –12 1 2 31 11 –46 –34 85 –28 Germany Sweden Finland Baltics Other operations Group Jan–Sep, SEK M 2026 2025 2026 2025 2026 2025 2026 2025 2026 2025 2026 2025 EBIT under segment reporting 324 352 79 –11 6 4 134 59 –125 –113 417 291 Differences in accounting policies –154 –242 –63 –46 –23 46 –54 –24 – – –294 –267 EBIT 170 110 15 –57 –17 50 80 34 –125 –113 123 24 Germany Sweden Finland Baltics Other operations Group Jan–Dec, SEK M 2025 2025 2025 2025 2025 2025 EBIT under segment reporting 547 32 3 123 –157 548 Differences in accounting policies –123 –79 35 –20 – –186 EBIT 424 –47 38 104 –157 362 Bonava is exposed to exchange-rate changes, primarily in EUR, as a result of operations in subsid- iaries outside Sweden. The table below shows how changes in exchange rates have impacted EBIT through this translation effect of subsidiaries outside Sweden. The calculation applied the average exchange rate of the comparative period to EBIT for the period in local currencies for the subsid- iaries outside Sweden. SEK M Jul–Sep Jan–Sep EBIT 2025 148 291 Currency effect –1% –3% Growth adjusted for currency 15% 46% Reported growth 14% 43% EBIT 2026 168 417 Bonava Interim report January–September 2026 25

Page 26

8 Fair value of financial instruments Fair value for the financial instruments that are continuously mea- sured at fair value in Bonava’s balance sheet is determined on the basis of three levels. No transfers have been made between the levels during the period. At Level 1, Bonava recognises outstanding bond loans. The fair value is based on quoted market prices and is not expected to differ materially from the carrying amount. Level 2 derivative instruments comprise currency and interest rate swaps, whose fair values are determined using observable mar- ket data, such as published forward rates. Bonava has no financial instruments in Level 3. SEK M 30 Sep 2026 30 Sep 2025 31 Dec 2025 Derivatives 10 – 21 Total assets 10 – 21 Derivatives 14 8 – Total liabilities 14 8 – The fair value of non-current and current interest-bearing liabilities is not deemed to differ materially from the carrying amount and is therefore not recognised separately in this interim report. For finan- cial instruments recognised at amortised cost, the carrying amount of accounts receivable, other receivables, cash and cash equiva- lents, accounts payable and other interest-free liabilities is consid- ered equal to the fair value. 9 Investment properties Investment properties are measured at fair value in accordance with IAS 40. Fair value was established using external valuations on the basis of discounted future cash flows. These valuations are classi- fied at Level 3 under IFRS 13. An unrealised change in value of SEK 11 M was reported during the period as a result of updated market valuations. SEK M 30 Sep 2026 30 Sep 2025 31 Dec 2025 Fair value at start of period 268 286 286 Changes in value 11 – – Currency translation 13 –12 –18 Fair value at end of period 292 274 268 10 Investment commitments Bonava has entered into agreements for the acquisition of building rights that are conditional and have not yet been recognised as part of the financial statements. At 30 September 2026, the value of these amounted to SEK 1,817 M (SEK 1,684 M at 30 June 2026). The investments are expected to be settled with SEK 90 M in 2026, SEK 1,212 M in 2027 and SEK 514 M in 2028 and thereafter. The majority of the increase is attributable to acquired but not handed over building rights in Sweden and Germany. The agreements are generally conditional upon building permits or zoning plans being approved. In addition, Bonava has entered into option agreements that provide options to acquire building rights. If the options are exercised, this will result in future cash out- flows for Bonava. If the options are not exercised, this may result in a cost for Bonava, primarily through impairment of recognised advances. 7 Specification of net debt SEK M 30 Sep 2026 30 Sep 2025 31 Dec 2025 Non-current interest-bearing receivables1) 3 131 103 Current interest-bearing receivables1) 171 520 500 Cash and cash equivalents2) 274 387 209 Interest-bearing assets 449 1,037 812 Non-current liabilities to credit institutions and investors 3,227 3,206 2,340 Current liabilities to credit institutions and investors 251 201 450 Interest-bearing liabilities to credit institutions and investors 3,478 3,408 2,789 Net debt in project financing 1,359 544 725 Other interest-bearing liabilities 239 17 17 Net debt excl. leases 4,627 2,931 2,719 Lease liabilities 159 123 98 Net debt 4,786 3,054 2,816 1) Including vendor notes issued to the buyer of the Norwegian operations. 2) Excluding cash on hand for project financing. 6 Net financial items SEK M 2026 Jul–Sep 2025 Jul–Sep 2026 Jan–Sep 2025 Jan–Sep Oct 2025 –Sep 2026 2025 Jan–Dec Net interest items –76 –65 –204 –200 –271 –267 Fees, guarantee costs and other1) –52 –22 –145 –122 –178 –155 Currency translation 4 –1 4 –7 3 –8 Net financial items –123 –87 –345 –329 –445 –428 1) Fees include non-recurring effects related to the redemption and tender offer process pertaining to Bonava’s green bond, which was refinanced in February 2025 and June 2026. These amounted to SEK –29 M in Q3 2026, SEK –39 M in Q2 2026 and SEK –30 M in Q1 2025. For more information, refer to the “Financing” section. Bonava Interim report January–September 2026 26

Page 27

12 Key performance indicators and currency rates SEK M 30 Sep 2026 30 Sep 2025 31 Dec 2025 Return on capital employed, R12, % 2.9 2.0 2.5 Equity/assets ratio, % 38.3 40.6 44.4 Return on equity, R12, % 0.0 –2.3 –1.3 Interest-bearing liabilities/total assets, % 29.8 24.5 23.3 Net debt 4,786 3,054 2,816 Net debt/equity ratio, multiple 0.7 0.5 0.4 Capital employed 12,116 10,878 10,589 Share of risk-bearing capital, % 38.5 40.8 44.6 Average interest rate – central financing, at end of period, % 5.83 6.86 6.91 Average fixed-rate term – central financing, years 0.4 0.5 0.5 Average interest rate – project financing, at end of period, % 5.37 4.79 5.46 Average fixed-rate term – project financing, years 0.3 0.3 0.3 Average rate 30 Sep 2026 30 Sep 2025 31 Dec 2025 DKK 1.46 1.49 1.48 EUR 10.90 11.10 11.06 Closing rate 30 Sep 2026 30 Sep 2025 31 Dec 2025 DKK 1.52 1.48 1.45 EUR 11.33 11.07 10.81 The average exchange rate for EUR that has been applied, RTM, is 11.0178. Key performance indicators per quarter and full-year are available at bonava.com/en/investors/financial-data. Reporting of Bonava’s alternative performance measures can also be found here. 11 Pledged assets and contingent liabilities SEK M 30 Sep 2026 30 Sep 2025 31 Dec 2025 Pledged assets For own liabilities Property mortgages 1,438 608 765 Net assets in the Group, excluding Parent Company 1,377 1,450 1,596 Other pledged assets 132 613 563 Total pledged assets 2,947 2,671 2,924 Surety and guarantee obligations Own contingent liabilities Counter guarantee to external guarantors 269 189 189 Contingent liabilities1) 377 382 381 Other guarantees and contingent liabilities2) 113 175 105 Total surety and guarantee obligations 759 746 675 1) Expenses related to properties held for future development that are deemed to arise even if housing projects are not started. 2) Guarantees pertaining to discontinued operations that are to be taken over by the buyer in accordance with agreements. Property mortgages pertain to collateral pledged for Finnish hous- ing companies and Swedish tenant-owner associations, as well as securities for financing in the Baltics. Counter guarantees to external guarantors constitute collateral for amounts that were paid to tenant-owner associations formed by Bonava Sverige AB. These deposit guarantees are valid until one year after the final acquisition cost of the tenant-owner association’s building has been established. As part of the Group’s financing from credit institutions and Bonava’s green bond, collateral has been pledged in the form of shares in subsidiaries and material receivables (with the associated assets) and surety and guarantee obligations. Some intra-Group receivables have also been pledged. These have been eliminated in the Group. On 4 December 2025, following a tax audit of Bonava Sverige AB, the Swedish Tax Agency decided to impose additional VAT of approximately SEK 31 M and a tax surcharge of approximately SEK 6 M. This decision has been appealed. As the company considers it unlikely that the obligation will need to be settled, no provision has been recognised. Bonava Interim report January–September 2026 27

Page 28

The Parent Company in brief Parent Company Notes January–September 2026 The Parent Company comprises the operations of Bonava AB (publ). Net sales for the period totalled SEK 121 M (125). Profit after financial items was SEK 91 M (140). INCOME STATEMENT, SEK M Note 1 2026 Jan–Sep 2025 Jan–Sep 2025 Jan–Dec Net sales 121 125 160 Selling and administrative expenses –182 –185 –279 EBIT –61 –60 –119 Financial income 564 994 1,345 Financial expenses –412 –794 –1,062 Profit after financial items 91 140 164 Profit before tax 91 140 164 Tax on profit for the period –1 – 0 Profit for the period 90 140 164 BALANCE SHEET, SEK M Note 1, 2 30 Sep 2026 30 Sep 2025 31 Dec 2025 Assets Fixed assets 8,829 10,497 9,742 Current assets 279 588 614 Total assets 9,107 11,085 10,356 Shareholders’ equity and liabilities Shareholders’ equity 7,559 7,444 7,468 Provisions 19 17 19 Non-current liabilities 1,472 3,208 2,341 Current liabilities 57 417 528 Total shareholders’ equity and liabilities 9,107 11,085 10,356 1 Accounting policies The company has prepared its Interim Report pursuant to the Swedish Annual Accounts Act (1995:1554) and the Swedish Financial Reporting Board's recommendation RFR 2 Accounting for Legal Entities. The accounting policies and material assessments and estimates applied in the preparation of this Interim Report apply to all periods and comply with the accounting policies presented in Note 1 Signifi- cant accounting policies in Bonava’s 2025 Annual Report, pages 137–139 and 165. The Annual Report is available at bonava.com. 2 Pledged assets and contingent liabilities SEK M 30 Sep 2026 30 Sep 2025 31 Dec 2025 Counter guarantee to external guarantors1) 4,080 4,126 3,644 Guarantees for entities included in the consolidated financial statements2) 3,592 1,402 2,370 Other guarantees and contingent liabilities3) 113 179 105 Shares in subsidiaries 2,084 2,084 2,084 Receivables from subsidiaries 6,638 8,217 7,489 Other pledged assets 132 606 563 Total 16,640 16,614 16,255 1) Counter guarantee to banks and credit insurance companies that have issued guarantees for Group companies. Also includes counter guarantees for guarantees that constitute collateral for amounts paid to tenant-owner associations formed by Bonava Sverige AB. Deposit guarantees are valid until one year after the final acquisition cost of the tenant-owner associ- ation’s building has been established. 2) Amounts indicated are based on the maximum commitment from each guarantor, at any given time outstanding commit- ments may be lower. Also includes guarantees for agreed credit lines for construction financing for Swedish tenant-owner associations and Finnish housing companies. 3) Guarantees pertaining to discontinued operations that are to be taken over by the buyer in accordance with agreements. Previously, the Group disclosed guarantees issued for project financing at the amount utilised as of the balance sheet date. To provide a more accurate picture of the Group’s actual commitments and maximum exposure, the Group now discloses the nominal amounts of the guarantees, which are included in the amount attribut- able to the entities included in the consolidated financial statements. The comparative figures have been restated to facilitate comparability between periods. Bonava Interim report January–September 2026 28

Page 29

Definitions Bonava reports a number of alternative performance measures that are central to monitoring the Group’s development and achievement of targets. These measures are used as a complement to the financial statements to assess Bonava’s ability to create value, carry out strategic investments, fulfil financial commitments, and evaluate profitability and growth. Financial key performance indicators Average fixed-rate term The remaining fixed-rate term weighted by interest-bearing liabilities outstanding. Average interest rate Interest rate weighted by interest-bearing lia- bilities outstanding on the balance sheet date. Capital employed Total assets less non-interest bearing liabili- ties including deferred tax liabilities. Cash flow before financing and tax EBITDA adjusted for changes in working cap- ital and changes in tangible and intangible fixed assets. The measure is adjusted to exclude currency effects and excludes effects of financing, tax and changes in finan- cial assets. Central financing Loans and credit facilities raised by the par- ent company or the Group’s central financing function and used to finance the Group’s operations as a whole. Earnings per share Net profit/loss for the period divided by the weighted average number of shares in the period. EBITDA Operating profit before net financial items, tax and depreciation. EBIT margin EBIT as a percentage of net sales. Equity/assets ratio Shareholders’ equity as a percentage of total assets. Gross margin Gross profit as a percentage of net sales. Gross margin according to segment reporting Gross profit according to segment reporting as a percentage of net sales according to segment reporting. Gross profit according to segment reporting Gross profit based on progress in the project portfolio and actual sales. Net debt Interest-bearing liabilities and provisions less interest-bearing assets, including cash and cash equivalents and restricted cash. Net debt excluding leasing Total net debt excluding lease liabilities. Used to calculate the relation to net project assets. Net debt/equity ratio Net debt divided by shareholders’ equity. Net project asset value The carrying amount of ongoing housing projects, completed housing units and investment properties less advances from customers. Net sales according to segment reporting Net sales based on progress in the project portfolio and actual sales. The difference compared with IFRS relates to the timing of revenue recognition. Over a project’s life cycle, the total outcome is the same. Operating margin according to segment reporting Operating profit according to segment reporting as a percentage of net sales according to segment reporting. Operating profit according to segment reporting Operating profit based on progress in the project portfolio and actual sales. The differ- ence compared with IFRS relates to the tim- ing of revenue and expense recognition. Over a project’s life cycle, the total outcome is the same. Project financing Loans that directly finance project assets and investment properties, as well as selected land investments where develop- ment and construction is close in time. Return on capital employed Profit after financial items on a rolling 12-month basis following the reversal of interest expense as a percentage of average capital employed. Return on shareholders’ equity Profit after tax as a percentage of average shareholders’ equity. Segment reporting Revenue and expenses are recognised based on project progress. Otherwise consistent with IFRS. Share of risk-bearing capital Total shareholders’ equity and deferred tax liabilities as a percentage of total assets. Sector-related definitions Completed housing units Housing units for which final inspection has taken place but which have not yet been sold, or housing units that have been sold but not yet transferred to the customer. Completion rate Recognised costs in relation to estimated total costs in ongoing housing projects. Housing units in ongoing production Refers to the period from production start to completion of a building. A housing unit is considered complete upon approved final inspection. Housing units recognised in profit Number of sold housing units that have been handed over to the purchaser. Upon transfer to the purchaser, the purchase price is rec- ognised as net sales and incurred costs as production costs. Housing units sold Number of housing units for which binding sales agreements have been signed with the customer and production of the housing unit has started. Production start The time at which Bonava starts production of a building. At this time, capitalised expen- diture for land and development expenses is transferred to ongoing housing projects. Properties held for future development Refers to Bonava’s holdings of land and building rights for future residential develop- ment and capitalised property development costs. Sales rate for ongoing production Number of housing units sold in production in relation to the total number of housing units in production, excluding investment properties. Sales value of housing units sold Sales value of housing units sold for which binding sales agreements have been signed with the customer and production of the housing unit has commenced. Bonava Interim report January–September 2026 29

Page 30

Auditor’s report Bonava AB (publ), corp. reg. no. 556928-0380 Introduction We have conducted a limited review of the condensed interim finan- cial information (interim report) for Bonava AB (publ) as of Septem- ber 30, 2026, and the nine-month period ending on that date. The board of directors and the managing director are responsible for pre- paring and presenting this interim report in accordance with IAS 34 and the Swedish Annual Accounts Act. Our responsibility is to express a conclusion on this interim report based on our limited review. The focus and scope of the limited review We have conducted our limited review in accordance with the Inter- national Standard on Review Engagements ISRE 2410, ”Review of Interim Financial Information Performed by the Independent Auditor of the Entity.” A limited review consists of making inquiries, primarily of persons responsible for financial and accounting matters, per- forming analytical procedures, and other review procedures. A lim- ited review has a different focus and a significantly smaller scope compared to the focus and scope of an audit conducted in accor- dance with ISA and generally accepted auditing standards. The review procedures taken in a limited review do not enable us to obtain the assurance that we would become aware of all significant matters that might have been identified in an audit. Therefore, the conclusion expressed based on a limited review does not have the assurance that a conclusion expressed based on an audit has. Conclusion Based on our limited review, nothing has come to our attention that causes us to believe that the interim report is not, in all material respects, prepared for the group in accordance with IAS 34 and the Annual Accounts Act and for the parent company in accordance with the Annual Accounts Act. Stockholm October 22, 2026 Öhrlings PricewaterhouseCoopers AB Johan Rippe Johan Wirén Authorized Public Accountant Authorized Public Accountant Auditor in charge Bonava Interim report January–September 2026 30

Page 31

Bonava in brief Our mission We create happy neighbourhoods for the many. Operations Bonava is a leading residential developer in Europe with the pur- pose of creating happy neighbourhoods for the many. With its 900 employees, Bonava develops residential housing in Germany, Sweden, Finland, Latvia, Estonia and Lithuania. To date, the company has built about 50,000 homes and reported net sales of approximately SEK 8 billion in 2025. Bonava’s shares and green bond are listed on Nasdaq Stockholm. Net sales 8.2 SEK Bn, 2025 Employees 900 End of Q4 2025 Housing units sold 2,393 In 2025 Geographic presence 6 Countries Publication This information is such that Bonava AB (publ) is obligated to disclose pursuant to the EU Market Abuse Regulation. The information was issued for publication through the agency of our contact persons on 22 October 2026 at 7:00 a.m. CEST. Webcast presentation 22 October President and CEO Peter Wallin and CFO Jon Johnsson will present the report on 22 October 2026 at 9:00 a.m. CEST. Follow the webcast live at: https://access.dnbcarnegie.com/companies/1081/live The presentation material will be available at bonava.com. Financial calendar Year-end report Jan–Dec 4 February 2027 Q1 Interim report, Jan–Mar 27 April 2027 Q2 Interim report, Jan–Jun 16 July 2027 Contact Jon Johnsson CFO and Deputy CEO jon.johnsson@bonava.com +46 700 888 605 Anna Falck Fyhrlund Head of Investor Relations anna.falck@bonava.com +46 707 604 914 Bonava Interim report January–September 2026 31Bonava AB (publ), Corp. Reg. No. 556928-0380 | Box 12064, SE-102 22 Stockholm, Sweden | +46 8 409 544 00 | bonava.com

Sign in to continue

Your watchlist and earnings event details are available after you sign in.

Page 1

Interim report January–September 2026 Homes & Neighbourhoods Norrbodahöjden Upplands-Bro, Sweden