If it’s not green, it’s not an investment.
Five decades of excellence and counting.
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GRESB
- Ranked among top real estate companies, earned the highest 5-Star rating and an “A” disclosure score
- 14 years of “Green Star” designations
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LEED Certifications
- 35.6m SF of LEED-certified buildings, of which 94% are certified at the highest Gold and Platinum levels
- New office developments pursue Gold certification or higher
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ENERGY STAR
- 50% of the total in-service portfolio is certified
- 100% rated actively managed office portfolio
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Fitwel
- 29.6m SF Fitwel certified
- Best in Building Health Award Winner
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2025
Awards & Accolades
- BCxA’s Building Commissioning Award
- City of Boston’s Building Emissions Reduction and Disclosure Ordinance (BERDO) Energy Efficiency Spotlight
- CDP Climate Change Score – “B”
- Fitwel Best in Building Health Award Winner
- Green Lease Leader – Platinum
- GRESB Green Star, 5-star Rating, Sector Leader – Development
- Mass Save Climate Leader
- MSCI ESG Rating – “AA”
- S&P Global Sustainability Yearbook Member, 93rd Percentile, REIT CSA
- Sustainalytics Low Carbon Leader, Top 6% Global Universe
People. Planet. Profit.
We don’t stop at installing solar panels and reducing carbon emissions. We’re urban beekeepers— literally housing these champion pollinators on rooftops. We’re using an abandoned quarry as a renewable source of water for an innovative cooling system. And we’re harvesting hundreds of gallons of rainwater. Boston’s most sustainable building? That’s one of ours, too.
Our small footprint is a big deal.
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38%
Energy use reduction
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44%
Water use reduction
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54%
Landfill waste diverted
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97%
Actively managed office buildings certified under green building rating systems
*Reductions since 2008 on an intensity basis
