GRESB Data Verification
Independent. Efficient. GRESB-aligned.
Third-party ESG data verification is no longer optional within GRESB.
It is a measurable driver of your benchmark score and a critical signal of credibility towards institutional investors.
Cooltree provides independent GRESB data verification for European real estate funds, executed fully in line with GRESB-approved standards.
Within GRESB, up to 5.5% of your total score is allocated to third-party verification of energy, GHG, water and waste data.
For many funds, that margin determines the difference between a 3-star and 4-star rating — directly influencing investor perception and competitive positioning.
Beyond scoring impact, verification:
Strengthens data reliability and auditability
Improves internal data processes and governance
Identifies structural reporting gaps
Increases credibility towards institutional capital
In an environment of increasing regulatory pressure (CSRD, EU Taxonomy, SFDR), robust ESG data is not just about GRESB — it is about long-term resilience.
Our Approach
Cooltree combines technical ESG expertise with deep knowledge of real estate portfolios and reporting frameworks.
Our verification process is:
Independent
We operate as a third-party verifier, fully aligned with GRESB requirements.
Structured & Efficient
A clear planning phase, defined documentation requirements and transparent communication ensure a smooth verification trajectory.
Substantive, not procedural
We do more than validate numbers. We assess data quality, consistency, coverage and methodology.
Focused on continuous improvement
Each verification cycle generates actionable feedback, helping you strengthen your reporting year-on-year.
What we verify
We verify ESG performance data in accordance with GRESB standards, including:
Energy consumption
Greenhouse gas (GHG) emissions
Water consumption
Waste data
Our methodology aligns with internationally recognized reporting principles and GRESB verification requirements.
Who we work with
Cooltree supports European real estate funds and asset managers across multiple sectors, including retail, office, residential and mixed-use portfolios.
In the past year, we supported 35+ European real estate funds with GRESB data verification.
Why Cooltree
Deep expertise in ESG data and real estate performance
Strong understanding of regulatory frameworks (CSRD, EU Taxonomy)
Independent, objective and technically rigorous
Practical and solution-oriented
We understand that data verification is not just about compliance — it is about positioning your fund in a competitive capital market.
Preparing for GRESB 2026?
If data verification is not yet embedded in your submission strategy, now is the time to act.
Contact us to discuss your portfolio and verification timeline.
info@cooltree.nl
or use our contact form to schedule a call.


