At a glance
91-95 Summer St is a 30,640-square-foot office building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported 166 tCO₂e of greenhouse-gas emissions.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | — |
| Source EUI | — |
| GHG emissions | 166 tCO₂e |
| GHG intensity | — |
| Electricity | 154,852 kWh |
| Gross floor area | 30,640 sq ft |
| Source record | boston:106015:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | — | 166 tCO₂e | |
| 2023 | 62 | +15 | 51.7 kBtu/ft² | 97 tCO₂e |
| 2022 | 47 | 71.4 kBtu/ft² | 164 tCO₂e |
Compliance context
BERDO 2.0
BERDO 2.0 sets emissions standards for buildings of 20,000+ sq ft or 15+ units, starting in 2025 or 2030 depending on building size, with an alternative-compliance payment of $234 per metric ton of CO₂e over the limit.
Ownership
SUN LIFE ASSURANCE COMPANY
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Location
- Address
- 91-95 Summer St
- City
- Boston
- State
- Massachusetts
- ZIP
- 2110.
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in Boston · biggest emitters
How does 91-95 Summer St compare with other office buildings in Boston?
The latest disclosures cover 467 office buildings in Boston, out of 6,305 buildings citywide.
At 30,640 sq ft, it is about 84% below the average floor area of 191,803 sq ft for those buildings. Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 91-95 Summer St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 91-95 Summer St, covering report years 2022–2024. Its ENERGY STAR score went from 47 in 2022 to 62 in 2023 (+15 points). Site EUI moved from 71.4 kBtu/ft² (2022) to 51.7 kBtu/ft² (2023), a 28% decrease. Reported emissions went from 164 tCO₂e to 166 tCO₂e over the same span (up 1%).
Which law requires 91-95 Summer St to report its energy use?
91-95 Summer St reports under BERDO 2.0, the legal basis of Boston's Building Emissions Reduction and Disclosure Ordinance, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record boston:106015:2024). BERDO 2.0 sets emissions standards for buildings of 20,000+ sq ft or 15+ units, starting in 2025 or 2030 depending on building size, with an alternative-compliance payment of $234 per metric ton of CO₂e over the limit.
More office buildings in Boston
- 133-137 Portland St· 30,487 sq ft · score 59 (C)
- 7 Congress St· 30,430 sq ft · EUI 55.3 kBtu/ft²
- 7-11 Otis St· 30,000 sq ft · score 74 (B)
- 83-87 Summer St· 29,094 sq ft · score 58 (C)
- 23-25 Kingston St· 29,001 sq ft · score 43 (D)
- Office building #104256· 29,000 sq ft · score 33 (D)
- Office buildings in Boston· 467 benchmarked
- All Boston benchmarked buildings· BERDO 2.0
- Most efficient large buildings in Boston
- Least efficient large buildings in Boston
- Biggest emitters in Boston
Frequently asked questions
What is 91-95 Summer St's energy grade?
91-95 Summer St did not report an ENERGY STAR score in its 2024 disclosure.
How much energy does 91-95 Summer St use?
No energy-use intensity was reported for 2024.
What are 91-95 Summer St's carbon emissions?
91-95 Summer St reported 166 tCO₂e of greenhouse-gas emissions for 2024.
Where is 91-95 Summer St?
91-95 Summer St is in Boston, Massachusetts 2110.
How big is 91-95 Summer St and when was it built?
91-95 Summer St has 30,640 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as office.
Is 91-95 Summer St covered by BERDO 2.0?
Yes — it appears in the 2024 Building Emissions Reduction and Disclosure Ordinance disclosure, which lists the buildings reporting under BERDO 2.0.
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About this data
Source: Building Emissions Reduction and Disclosure Ordinance (BERDO 2.0), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “91-95 Summer St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/91-95-summer-st-3bd2fa34 (data as of July 9, 2026).