45-55 W Broadway
Multifamily Housing in Boston, MA · 2127.
At a glance
45-55 W Broadway is a 41,436-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported an ENERGY STAR score of 85 out of 100 (grade A), a site energy-use intensity of 31.8 kBtu/ft² and 75 tCO₂e of greenhouse-gas emissions. That score is higher than 57% of the 1,225 scored multifamily housing buildings in Boston.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 85 (band A) |
| Site EUI | 31.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 75 tCO₂e |
| GHG intensity | — |
| Electricity | 386,281 kWh |
| Gross floor area | 41,436 sq ft |
| Source record | boston:102963:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 85 | 31.8 kBtu/ft² | 75 tCO₂e | |
| 2023 | — | — | — | |
| 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
FIFTY-5 W BROADWAY CONDO TR
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Location
- Address
- 45-55 W Broadway
- City
- Boston
- State
- Massachusetts
- ZIP
- 2127.
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 45-55 W Broadway 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. 45-55 W Broadway's ENERGY STAR score of 85 compares with an average of 71 across the 1,225 that report a score; it scores higher than 57% of them and lower than 41%. Its site EUI of 31.8 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 41,436 sq ft, it is about 29% 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 45-55 W Broadway's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 45-55 W Broadway, covering report years 2022–2024. Only one of those years carries energy figures.
What does an ENERGY STAR score of 85 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 85 means the building performs better than about 85% of its national peers. BuildingCensus bands the score into report-card grades; 85 falls in band A — high performer (85–100). 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. 45-55 W Broadway's 31.8 kBtu/ft² across 41,436 sq ft works out to about 1.3 billion Btu (386 MWh-equivalent) in 2024. The disclosure also reports 386,281 kWh of electricity for the year.
Which law requires 45-55 W Broadway to report its energy use?
45-55 W Broadway 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:102963:2024). 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
- 735 Adams St· 41,395 sq ft · score 46 (D)
- 30 Gove St· 41,373 sq ft · score 89 (A)
- 85-89 Hammond St· 41,078 sq ft · EUI 45.2 kBtu/ft²
- 504 Beacon St· 41,041 sq ft · EUI 76.3 kBtu/ft²
- 51 Deering Rd· 41,000 sq ft · score 41 (D)
- 405-407 W First St· 40,980 sq ft · EUI 20.0 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 45-55 W Broadway's energy grade?
45-55 W Broadway scores 85 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 Boston disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 45-55 W Broadway use?
Its 2024 site energy-use intensity was 31.8 kBtu/ft² across 41,436 sq ft, including 386,281 kWh of electricity.
What are 45-55 W Broadway's carbon emissions?
45-55 W Broadway reported 75 tCO₂e of greenhouse-gas emissions for 2024.
Where is 45-55 W Broadway?
45-55 W Broadway is in Boston, Massachusetts 2127.
How big is 45-55 W Broadway and when was it built?
45-55 W Broadway has 41,436 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.
Is 45-55 W Broadway 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, “45-55 W Broadway, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/45-55-w-broadway-5a09203c (data as of July 9, 2026).