Assessment Structure & Scope

About the Assessment

Financial regulators increasingly expect organizations to disclose how they manage sustainability performance, risks, and long-term value creation. Proactive transparency enables real estate companies to stay ahead of this global shift, strengthen stakeholder trust, and give investors the clarity they need to make informed, forward-looking decisions. GRESB Public Disclosure supports this by evaluating the quality and completeness of material sustainability disclosures from REITs and listed property companies.

The evaluation draws on indicators aligned with the GRESB Real Estate Assessment, enabling meaningful comparison between participants and non-participants. It also serves as a centralized resource for investors, offering a clear view of disclosure practices across their portfolio and supporting more effective engagement on sustainability performance and strategic priorities.

GRESB initially compiles Public Disclosure data for selected companies, including both 2025 Assessment participants and non-participants. All constituents may review and update their information before it becomes available to GRESB Investor Members. The Public Disclosure framework covers four Aspects—Governance, Implementation, Performance, and Stakeholder Engagement—which together determine a Public Disclosure Level expressed on an A–E scale.

In 2025, the dataset captured publicly available disclosures from more than 850 companies worldwide, including over 340 GRESB participants. Results show that companies participating in the GRESB Real Estate Assessment generally demonstrate stronger disclosure practices than non-participants, with notable variations across global regions.

See here for information about the GRESB Real Estate Assessment.

Public Disclosure Data

How does the initial data collection process work?

GRESB initially collects Public Disclosure information between February 1 - April 1.

Every year, the GRESB team collects sustainability disclosure information from newly-added constituents to the Real Estate Public Disclosure Universe. The data is then pre-filled in the online GRESB Portal for further review by the relevant listed property company or REIT. GRESB collects publicly disclosed data provided by participants in good faith and does not perform any checks on the quality of this data. It is the responsibility of the constituent to check the accuracy of this data and to update any information that is missing, inaccurate, or out of date. GRESB will not accept ad hoc requests to collect public disclosure data for listed entities after February 15th.

In light of this product’s mission to promote transparency, all evidence that GRESB collects or that constituents provide will be disclosed to GRESB Investor Members.

GRESB collects evidence on a presence/absence basis, recognizing that documentation may be available that better reflects the entity’s sustainability efforts. GRESB therefore encourages constituents to check and update any data that it collects and pre-fills on the entity's behalf.

What are the participation requirements?

Public Availability

GRESB Public Disclosure consists of a subset of indicators from the GRESB Real Estate Assessment, modified for the purpose of measuring levels of ESG disclosure through the following publicly available sources:

• Dedicated sections on the company website

• Latest stand-alone CSR/Sustainability Report (including Integrated Reports)

• Sustainability sections within the latest Annual Report or Financial Report

All data collected by GRESB for pre-filling was derived from these sources. Constituents may provide publicly disclosed data from other sources, as long as this is a means of official disclosure by the organization (e.g., 10-K filings or PRI Reports). Information disclosed through public channels, such as Facebook or personal blogs, is not deemed an official disclosure by the organization.

Material that is disclosed through internal channels (e.g., email, presentations, internal websites), or that requires any form of (online) registration to access, is not deemed “publicly available”.

Reporting Scope

All evidence needs to relate directly to the investable entity, i.e., the listed / public company. In case the day-to-day management responsibilities of the listed company are outsourced to a third-party investment manager, ensure that the text box below the evidence field includes a clear description of how this applies to the entity. Evidence will not be accepted without a clear explanation.

Reporting Period

GRESB Public Disclosure assesses an entity's most recent sustainability disclosure efforts. Constituents are encouraged to update any pre-filled evidence so that it reflects their most recent ESG disclosures. Data provided through an Annual Report or stand-alone Sustainability Report, as well as operational consumption data (e.g., energy, water, GHG, waste), must, at a minimum, relate to the entity’s 2024 reporting year (calendar or fiscal). Employee and tenant satisfaction surveys must, at a minimum, have been undertaken in the past three years.

Language

The preliminary data that the GRESB team collects focuses on documentation disclosed in English. Constituents may provide additional evidence in the form of hyperlinks to web pages or documents in languages other than English. However, this needs to be accompanied by an English description of the evidence’s content in the text box underneath the evidence field. Without a clear English description, the evidence will not be accepted.

Location of Relevant Information

To facilitate the data validation process, constituents should use the assigned text box to indicate where in the web page or online document the relevant information can be found. Participants should ensure that the relevant page can be accessed within two steps. A description of these steps needs to be provided in the text box underneath the hyperlink field. The constituent has the obligation to ensure that the hyperlink is functioning. Broken links are the responsibility of the constituent and will be interpreted as the absence of evidence.

What is the data collection timeline and process?

Initial data collection by GRESB (February 1 - April 1, 2026)

GRESB collected information for additional constituents included in the GRESB Real Estate Public Disclosure 2026 Universe in the period from February 1 to April 1, 2026.

Data review by constituents (April 1 - July 1, 2026)

GRESB Public Disclosure 2026 will be open for review starting April 1 through July 1, 2026, in parallel to the 2026 GRESB Real Estate Assessment. During this period, listed property companies and REITs can review their pre-filled Public Disclosure data collected by GRESB and, in tandem, complete the 2026 GRESB Real Estate Assessment.

Data validation by GRESB (July 1 - August 1, 2026)

All data provided, updated, or amended by GRESB Public Disclosure constituents will be checked and validated using the GRESB Validation Portal by GRESB, based upon the reporting scope and boundaries, definitions, and interpretations, described in this document, in the period July - August 2026.

During this period, GRESB maintains the right to expand on the 2026 GRESB Public Disclosure Constituent universe by collecting data on additional listed property companies and REITs.

Launch of Public Disclosure results (October 1, 2026)

The 2026 GRESB Public Disclosure results will be made available to the listed companies included in the analysis, as well as to GRESB Investor Members, in the first week of October 2026.