265-275 Dartmouth St
Multifamily Housing in Boston, MA · 2116.
At a glance
265-275 Dartmouth St is a 42,873-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported a site energy-use intensity of 54.0 kBtu/ft² and 132 tCO₂e of greenhouse-gas emissions.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 54.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 132 tCO₂e |
| GHG intensity | — |
| Electricity | 678,188 kWh |
| Gross floor area | 42,873 sq ft |
| Source record | boston:102500:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 54.0 kBtu/ft² | 132 tCO₂e | |
| 2023 | 64 | -35 | 47.5 kBtu/ft² | 122 tCO₂e |
| 2022 | 99 | 28.1 kBtu/ft² | 95 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
COPLEY CONDOMINIUM TRUST
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Location
- Address
- 265-275 Dartmouth St
- City
- Boston
- State
- Massachusetts
- ZIP
- 2116.
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 265-275 Dartmouth St compare with other multifamily housing buildings in Boston?
The latest disclosures cover 2,174 multifamily housing buildings in Boston, out of 6,305 buildings citywide. Its site EUI of 54.0 kBtu/ft² is about 20% below the average of 67.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 42,873 sq ft, it is about 26% below the average floor area of 58,087 sq ft for those buildings. Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has 265-275 Dartmouth St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 265-275 Dartmouth St, covering report years 2022–2024. Its ENERGY STAR score went from 99 in 2022 to 64 in 2023 (-35 points); its best year on file was 2022, at 99. Site EUI moved from 28.1 kBtu/ft² (2022) to 54.0 kBtu/ft² (2024), an 92% increase. Reported emissions went from 95 tCO₂e to 132 tCO₂e over the same span (up 38%).
What does a site EUI of 54.0 kBtu/ft² mean?
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. 265-275 Dartmouth St's 54.0 kBtu/ft² across 42,873 sq ft works out to about 2.3 billion Btu (679 MWh-equivalent) in 2024. The disclosure also reports 678,188 kWh of electricity for the year.
Which law requires 265-275 Dartmouth St to report its energy use?
265-275 Dartmouth 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:102500:2024). 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 multifamily housing buildings in Boston
- 333 Commonwealth Ave· 42,864 sq ft · score 95 (A)
- 25 Wyoming St· 42,840 sq ft · score 18 (D)
- 100-110 Gainsborough St· 42,799 sq ft · score 83 (B)
- 11 Dorchester St· 42,760 sq ft · score 6 (D)
- 76-110R Gainsborough St· 42,723 sq ft · score 81 (B)
- 41 Phillips St· 42,588 sq ft · EUI 48.9 kBtu/ft²
- Multifamily Housing buildings in Boston· 2,174 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 265-275 Dartmouth St's energy grade?
265-275 Dartmouth St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 54.0 kBtu/ft².
How much energy does 265-275 Dartmouth St use?
Its 2024 site energy-use intensity was 54.0 kBtu/ft² across 42,873 sq ft, including 678,188 kWh of electricity.
What are 265-275 Dartmouth St's carbon emissions?
265-275 Dartmouth St reported 132 tCO₂e of greenhouse-gas emissions for 2024.
Where is 265-275 Dartmouth St?
265-275 Dartmouth St is in Boston, Massachusetts 2116.
How big is 265-275 Dartmouth St and when was it built?
265-275 Dartmouth St has 42,873 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.
Is 265-275 Dartmouth 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, “265-275 Dartmouth St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/265-275-dartmouth-st-877be687 (data as of July 9, 2026).