128 Chestnut St
Multifamily Housing in Boston, MA · 2108.
At a glance
128 Chestnut St is a 21,960-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported an ENERGY STAR score of 66 out of 100 (grade C), a site energy-use intensity of 88.9 kBtu/ft² and 142 tCO₂e of greenhouse-gas emissions. That score is higher than 34% of the 1,225 scored multifamily housing buildings in Boston.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 66 (band C) |
| Site EUI | 88.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 142 tCO₂e |
| GHG intensity | — |
| Electricity | 54,076 kWh |
| Gross floor area | 21,960 sq ft |
| Source record | boston:100322:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 66 | -13 | 88.9 kBtu/ft² | 142 tCO₂e |
| 2023 | 79 | +11 | 78.1 kBtu/ft² | 125 tCO₂e |
| 2022 | 68 | 91.3 kBtu/ft² | 150 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
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 128 Chestnut St
- City
- Boston
- State
- Massachusetts
- ZIP
- 2108.
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 128 Chestnut 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. 128 Chestnut St's ENERGY STAR score of 66 compares with an average of 71 across the 1,225 that report a score; it scores higher than 34% of them and lower than 66%. Its site EUI of 88.9 kBtu/ft² is about 31% above the average of 67.7 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 21,960 sq ft, it is about 62% 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 128 Chestnut St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 128 Chestnut St, covering report years 2022–2024. Its ENERGY STAR score went from 68 in 2022 to 66 in 2024 (-2 points); its best year on file was 2023, at 79. Site EUI moved from 91.3 kBtu/ft² (2022) to 88.9 kBtu/ft² (2024), a 3% decrease. Reported emissions went from 150 tCO₂e to 142 tCO₂e over the same span (down 5%).
What does an ENERGY STAR score of 66 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 66 means the building performs better than about 66% of its national peers. BuildingCensus bands the score into report-card grades; 66 falls in band C — below median (55–69). It sits 9 points below 75, the threshold for ENERGY STAR certification. 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. 128 Chestnut St's 88.9 kBtu/ft² across 21,960 sq ft works out to about 2 billion Btu (572 MWh-equivalent) in 2024. The disclosure also reports 54,076 kWh of electricity for the year.
Which law requires 128 Chestnut St to report its energy use?
128 Chestnut 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:100322:2024). 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
- 2 Howe Ter· 21,803 sq ft · EUI 59.4 kBtu/ft²
- 342-356 Ashmont St· 21,800 sq ft · score 1 (D)
- 1197 Commonwealth Ave· 21,770 sq ft · score 47 (D)
- 259 Beacon St· 21,746 sq ft · score 95 (A)
- 660 Huntington Ave· 21,700 sq ft · score 82 (B)
- 5-15 Hammond St· 21,613 sq ft
- 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 128 Chestnut St's energy grade?
128 Chestnut St scores 66 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 Boston disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 128 Chestnut St use?
Its 2024 site energy-use intensity was 88.9 kBtu/ft² across 21,960 sq ft, including 54,076 kWh of electricity.
What are 128 Chestnut St's carbon emissions?
128 Chestnut St reported 142 tCO₂e of greenhouse-gas emissions for 2024.
Where is 128 Chestnut St?
128 Chestnut St is in Boston, Massachusetts 2108.
How big is 128 Chestnut St and when was it built?
128 Chestnut St has 21,960 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.
Is 128 Chestnut 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, “128 Chestnut St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/128-chestnut-st-03cde3b3 (data as of July 9, 2026).