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Green Claims and real estate: biodiversity cannot be decreed, it must be certified

Green Claims and real estate: biodiversity cannot be decreed, it must be certified

Tuesday, September 30, 2025

In the real estate sector, environmental promises have proliferated: self-declared labels, internal charters, marketing commitments. But with the European Green Claims Directive, this balancing act is coming to an end. From now on, a claim without independent proof exposes projects to a double risk: greenwashing and loss of value.

The new regulatory landscape

With the European Green Claims Directive (COM/2023/166), all environmental claims in real estate must now be proven and verifiable. Projects that rely solely on a self-declared label or an internal charter risk being accused of greenwashing.

When the promise becomes a market risk

In the real estate sector, the temptation has long been to display labels or voluntary initiatives to reassure investors and local authorities. But the reality is simple:

  • These systems are based on self-declaration,
  • They offer no legal enforceability
  • They do not secure access to financing.

In a construction or development project, this fragility becomes a direct risk to the value of the asset.

The Effinature Difference

IRICE, an ISO/IEC 17065 accredited certification body, offers a unique framework for real estate with Effinature:

  • standards applicable to new constructions, renovations and neighborhoods,
  • an evaluation by an independent third party,
  • enforceable evidence, compatible with ESG obligations and the European taxonomy.

An Effinature certified building is not only "greening": it is legally and financially secure.

A concrete lever for project owners

For developers, social housing providers, property companies and planners, independent certification is becoming a strategic tool:

  • to promote the project to investors,
  • to open access to public funding (Green Fund, ERDF, calls for projects),
  • to improve the reliability of the extra-financial reporting required by the CSRD.

Conversely, a project based on a declarative approach may lose its attractiveness, or even be reclassified as greenwashing.

Conclusion: to establish the credibility of real estate value

In real estate, biodiversity can no longer be a mere marketing ploy. It must be demonstrated, measured, and certified. Effinature, awarded by IRICE, provides this guarantee. A real estate project certified by Effinature is a project that avoids the risk of greenwashing and gains in lasting value.

Research