CSRD and building documentation: What the new requirements mean for property companies

CSRD was implemented into Norwegian law in June 2024, and the first reporting requirements hit large companies for the 2024 financial year. The EU approved a “stop the clock” delay for waves 2 and 3 in 2025, but for the largest companies the deadline has passed — and the rest of the market follows within two to three years.

What CSRD Requires from Property Companies

CSRD requires property companies to document energy use, greenhouse gas emissions, material choices, and circular economy measures for every building in their portfolio — and this data must come from structured building documentation, not estimates. The Corporate Sustainability Reporting Directive (CSRD) requires companies to report on environmental, social, and governance matters under the European Sustainability Reporting Standards (ESRS). For property companies, this means you must document energy use, greenhouse gas emissions, material choices, and circular economy measures for the buildings in your portfolio.

“Many property companies underestimate how much of CSRD reporting ultimately comes down to building documentation. You cannot report on energy use without energy certification, and you cannot document material choices without up-to-date technical specifications,” says Kari Svendsen, Sustainability Advisor at Multiconsult.

ESRS E1 (climate change) requires detailed records of energy consumption and emission sources. For buildings, this means documentation of technical systems, energy sources, insulation values, and ventilation systems — information that typically sits in FDV documentation, if it is complete and up to date.

What happens to property companies that cannot meet CSRD documentation requirements?

Companies that cannot deliver adequate CSRD reporting face three concrete consequences.

First, Finanstilsynet (the Norwegian Financial Supervisory Authority) can impose sanctions for inadequate reporting. Second, banks are increasingly evaluating sustainability documentation at refinancing, and companies without documentation in order risk missing out on favorable green financing. Third, it directly affects property values. Investors and buyers use CSRD data as part of due diligence, and properties without a documented sustainability profile will face increasing price pressure compared to portfolios where documentation is complete.

“The difference between green and brown financing can amount to 30 to 50 basis points on a long-term loan agreement. For large portfolios, we are talking about millions annually,” says Erik Bjørnstad, Real Estate Analyst at Arctic Securities.

How does the EU Taxonomy affect building documentation requirements?

The EU Taxonomy defines what qualifies as sustainable economic activity, and sets its own requirements for buildings to be classified as taxonomy-aligned. For existing buildings, this requires documentation of energy performance (at least energy class A or top 15 percent of national building stock), as well as technical documentation showing that the building meets the “do no significant harm” criteria across all environmental objectives.

Without structured access to building documentation, this is practically impossible to execute efficiently for a large portfolio. Manual retrieval of energy certifications, technical specifications, and maintenance histories for each individual building requires hundreds of work hours that could be avoided with digital tools.

How to Prepare

Start by mapping the documentation status across your entire portfolio. Identify which buildings are missing energy certifications, up-to-date technical specifications, and maintenance histories. Then prioritize the properties with the greatest potential for taxonomy reporting and green financing.

Consider digitizing and structuring existing documentation with AI tools that classify automatically according to NS 3451. Findable has done this for companies like OBOS, where 40,000 documents were classified in three weeks — a job that would have taken over a year manually.

The window for building an advantage is closing quickly. Companies that have their documentation in order when waves 2 and 3 of CSRD arrive will have a measurable competitive advantage in access to capital and transaction processes.

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For the cost implications of documentation gaps, read Building documentation in 2026: What does disorder actually cost you?. To understand the classification standard that underpins CSRD-ready documentation, see NS 3451: Why the building table is the key to documentation order. See how OBOS used Findable for reuse mapping documentation as part of their sustainability strategy.