Holding Steady, Building Forward
For the second year in a row, Simpson Housing has earned a 3-star GRESB rating. Our 2026 assessment resulted in a score of 84.3 out of 100, placing Simpson 42nd among 139 residential participants in the Americas.
Last year marked a major leap for us. This year was about proving that progress could last. Keeping a 3-star rating shows that sustainability is now built into how we operate, not just a one-time push.
Simpson Housing owns and manages apartment communities across 15 states, from Washington and California to Florida and Massachusetts. The 2026 rating reflects sustainability performance across that full portfolio.
What is GRESB?
GRESB (formerly Global Real Estate Sustainability Benchmark) is an independent ESG benchmark that measures the environmental, social, and governance performance of real estate companies and funds worldwide. Institutional investors use GRESB results to compare how property owners and managers handle sustainability. In 2026, 2,382 real estate portfolios participated in the GRESB assessment.
How are GRESB star ratings calculated?
GRESB star ratings range from 1 to 5 and are based on how a participant's overall score ranks against all participants globally. Because ratings are relative, a company must keep pace with an improving global field to hold the same star level from year to year.
What did GRESB evaluate for Simpson Housing?
GRESB evaluated Simpson Housing across three areas:
- Environmental: energy use, water use, waste management, and greenhouse gas emissions across Simpson Housing communities
- Social: resident wellness, employee health and safety, and community engagement programs
- Governance: sustainability policies, leadership oversight, and how ESG goals are built into company strategy
The 2026 submission covered company-wide practices and 2025 utility and emissions data for every asset Simpson Housing fully or partially owns. You can find more on our initiatives on our Corporate Responsibility page.
Why does a GRESB rating matter for residents and investors?
A GRESB rating gives investors, partners, and residents an independent, third-party measure of a property company's sustainability performance. For Simpson Housing, maintaining a 3-star rating shows that sustainability practices are consistent and measurable year over year. GRESB results also help Simpson Housing benchmark against peers and identify specific areas to improve.
What's next for Simpson Housing's sustainability program?
Simpson Housing will use its 2026 GRESB results to improve data collection, find property-level efficiency opportunities, and continue reporting progress openly to investors and partners. Learn more about Simpson Housing's approach on our Corporate Responsibility page.
Thank you to the Simpson Housing site teams, corporate teams, residents, and partners who make this work possible every day.
Frequently Asked Questions
Is Simpson Housing GRESB rated?
Yes. Simpson Housing earned a 3-star GRESB rating in both 2025 and 2026.
What was Simpson Housing's GRESB score in 2026?
Simpson Housing scored 84.3 out of 100 in the 2026 GRESB Real Estate Assessment.
How did Simpson Housing's GRESB rating change from 2025 to 2026?
Simpson Housing maintained its 3-star rating. In 2025, Simpson Housing improved by two stars and 20 points over 2024, scoring 83 out of 100. In 2026, Simpson Housing scored 84.3 (an increase of 1.1 points).
What does a 3-star GRESB rating mean?
A 3-star GRESB rating places a participant in the middle tier of all GRESB participants worldwide, based on overall score.
