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GRESB Data Center Assessment

GRESB will be launching a new Data Center Assessment in 2026, following a pilot assessment scheduled for Q3 2025. Learn more about the Assessment, the Data Center Working Group, and the partnership with Infrastructure Masons below. 

A new sustainability benchmark for data centers

As demand for digital infrastructure accelerates, GRESB and Infrastructure Masons (iMasons) have joined forces to create the world’s first global sustainability benchmark tailored to data centers.

The GRESB Data Center Assessment is designed to meet the specific needs of investors, developers, and operators navigating the fast-growing data center market. A pilot assessment will launch in Q3 2025, with a full assessment scheduled for release in 2026.

This initiative is driven by the GRESB Data Center Working Group (DCWG)—a cross-sector coalition of more than 20 representatives from automation, energy management, computing, technology, and investment. Together, the DCWG, GRESB, and iMasons are defining the performance indicators and sustainability priorities most relevant to data centers.

Read the press release

Data Center Working Group Members 

Formed in late 2024, the Data Center Working Group comprises more than 20 iMasons and GRESB members with deep expertise across sustainability and data center operations—from energy and water to health and safety. See a full list of DCWG members below.

  • iMasons
  • Stack Infrastructure
  • CDPQ
  • CIM Group
  • Arcus Infrastructure Partners
  • Compass Data Centers
  • Brightworks
  • CBRE Investment Management,
    Private Infrastructure
  • Schneider Electric
  • Iron Mountain
  • DWS
  • Digital Realty
  • Sumitomo Mitsui Banking Corporation
  • GHD
  • Mantle Developments
  • BRE
  • Stream Data Centers
  • Harrison Street
  • Data Bank
  • Prime Data Centers
  • Quinn & Partners

Navigating Data Center Sustainability with GRESB in 2025

GRESB’s latest white paper provides expert guidance for data center assets and operators deciding between the GRESB Real Estate or Infrastructure Asset Assessment in 2025. It also explores key considerations such as investment strategy, materiality, peer group selection, and data-sharing requirements. 

Key insights:

 

  • How rapid growth and rising energy demands are shaping sustainability priorities for data centers
  • Comparison of Real Estate vs. Infrastructure Assessment options for data centers in 2025
  • Insights into how data centers are engaging with GRESB to date
  • REAL Statistics data on the energy consumption of data centers reporting to GREB
  • Guidance for operators on choosing the right assessment in 2025.
Read the white paper

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