300-322 Commercial St
Multifamily Housing in Boston, MA · 2109.
At a glance
300-322 Commercial St is a 186,285-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported an ENERGY STAR score of 77 out of 100 (grade B), a site energy-use intensity of 33.2 kBtu/ft² and 346 tCO₂e of greenhouse-gas emissions. That score is higher than 45% of the 1,225 scored multifamily housing buildings in Boston.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 77 (band B) |
| Site EUI | 33.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 346 tCO₂e |
| GHG intensity | — |
| Electricity | 1,364,684 kWh |
| Natural gas | 15,232 therms |
| Gross floor area | 186,285 sq ft |
| Source record | boston:104187:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 77 | -5 | 33.2 kBtu/ft² | 346 tCO₂e |
| 2023 | 82 | 30.9 kBtu/ft² | 336 tCO₂e | |
| 2022 | — | — | — |
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
MARINER CONDO ASSOCIATION
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Location
- Address
- 300-322 Commercial St
- City
- Boston
- State
- Massachusetts
- ZIP
- 2109.
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 300-322 Commercial 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. 300-322 Commercial St's ENERGY STAR score of 77 compares with an average of 71 across the 1,225 that report a score; it scores higher than 45% of them and lower than 54%. Its site EUI of 33.2 kBtu/ft² is about half of the average of 67.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 186,285 sq ft, it is about 221% above 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 300-322 Commercial St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 300-322 Commercial St, covering report years 2022–2024. Its ENERGY STAR score went from 82 in 2023 to 77 in 2024 (-5 points); its best year on file was 2023, at 82. Site EUI moved from 30.9 kBtu/ft² (2023) to 33.2 kBtu/ft² (2024), an 7% increase. Reported emissions went from 336 tCO₂e to 346 tCO₂e over the same span (up 3%).
What does an ENERGY STAR score of 77 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 77 means the building performs better than about 77% of its national peers. BuildingCensus bands the score into report-card grades; 77 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In Boston, 52% of scored buildings are at 75 or above.
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. 300-322 Commercial St's 33.2 kBtu/ft² across 186,285 sq ft works out to about 6.2 billion Btu (1,813 MWh-equivalent) in 2024. The disclosure also reports 1,364,684 kWh of electricity and 15,232 therms of natural gas for the year.
Which law requires 300-322 Commercial St to report its energy use?
300-322 Commercial 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:104187:2024). 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
- Multifamily Housing building #100446· 186,139 sq ft · score 95 (A)
- Multifamily Housing building #C10084· 184,172 sq ft · EUI 41.2 kBtu/ft²
- Multifamily Housing building #104543· 177,486 sq ft · score 45 (D)
- Multifamily Housing building #C10100· 177,230 sq ft · score 88 (A)
- 2948-2962 Washington St· 175,746 sq ft · score 81 (B)
- 145 Commercial St· 174,895 sq ft · score 81 (B)
- Multifamily Housing buildings in Boston· 2,174 benchmarked
- All Boston benchmarked buildings· BERDO 2.0
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- Biggest emitters in Boston
Frequently asked questions
What is 300-322 Commercial St's energy grade?
300-322 Commercial St scores 77 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 Boston disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 300-322 Commercial St use?
Its 2024 site energy-use intensity was 33.2 kBtu/ft² across 186,285 sq ft, including 1,364,684 kWh of electricity and 15,232 therms of natural gas.
What are 300-322 Commercial St's carbon emissions?
300-322 Commercial St reported 346 tCO₂e of greenhouse-gas emissions for 2024.
Where is 300-322 Commercial St?
300-322 Commercial St is in Boston, Massachusetts 2109.
How big is 300-322 Commercial St and when was it built?
300-322 Commercial St has 186,285 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.
Is 300-322 Commercial 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, “300-322 Commercial St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/300-322-commercial-st-f2a2b052 (data as of July 9, 2026).