35 Northampton Street
Multifamily Housing in Boston, MA · 2118
At a glance
35 Northampton Street is a 374,612-square-foot multifamily housing building in Boston, Massachusetts. In its 2023 Boston benchmarking disclosure it reported an ENERGY STAR score of 39 out of 100 (grade D), a site energy-use intensity of 89.2 kBtu/ft² and 2,014 tCO₂e of greenhouse-gas emissions. That score is higher than 15% of the 1,225 scored multifamily housing buildings in Boston.
BERDO 2.0 · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 39 (band D) |
| Site EUI | 89.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 2,014 tCO₂e |
| GHG intensity | — |
| Electricity | 3,224,135 kWh |
| Natural gas | 101,139 therms |
| Gross floor area | 374,612 sq ft |
| Source record | boston:C10048:2023 |
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
- 35 Northampton Street
- City
- Boston
- State
- Massachusetts
- ZIP
- 2118
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 35 Northampton Street 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. 35 Northampton Street's ENERGY STAR score of 39 compares with an average of 71 across the 1,225 that report a score; it scores higher than 15% of them and lower than 84%. Its site EUI of 89.2 kBtu/ft² is about 32% above the average of 67.7 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 374,612 sq ft, it is about 545% 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.
What does an ENERGY STAR score of 39 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 39 means the building performs better than about 39% of its national peers. BuildingCensus bands the score into report-card grades; 39 falls in band D — lowest band (1–54). It sits 36 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. 35 Northampton Street's 89.2 kBtu/ft² across 374,612 sq ft works out to about 33.4 billion Btu (9,793 MWh-equivalent) in 2023. The disclosure also reports 3,224,135 kWh of electricity and 101,139 therms of natural gas for the year.
Which law requires 35 Northampton Street to report its energy use?
35 Northampton Street 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 2023 disclosure (source record boston:C10048:2023). 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
- 370 Harrison Av· 373,320 sq ft · EUI 53.0 kBtu/ft²
- 123 Antwerp St· 369,336 sq ft · score 84 (B)
- 1 Avery St #Ph· 362,409 sq ft · score 7 (D)
- Multifamily Housing building #106123· 362,394 sq ft · score 5 (D)
- 55-57 Traveler St· 362,165 sq ft · score 90 (A)
- 131 Seaport Blvd· 353,510 sq ft · EUI 40.8 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 35 Northampton Street's energy grade?
35 Northampton Street scores 39 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 Boston disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 35 Northampton Street use?
Its 2023 site energy-use intensity was 89.2 kBtu/ft² across 374,612 sq ft, including 3,224,135 kWh of electricity and 101,139 therms of natural gas.
What are 35 Northampton Street's carbon emissions?
35 Northampton Street reported 2,014 tCO₂e of greenhouse-gas emissions for 2023.
Where is 35 Northampton Street?
35 Northampton Street is in Boston, Massachusetts 2118.
How big is 35 Northampton Street and when was it built?
35 Northampton Street has 374,612 sq ft of gross floor area, as reported in its 2023 disclosure. It is classed as multifamily housing.
Is 35 Northampton Street covered by BERDO 2.0?
Yes — it appears in the 2023 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, “35 Northampton Street, Boston, Massachusetts — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/35-northampton-street-1c188b1e (data as of July 9, 2026).