At a glance
655-665 Beacon St is a 32,001-square-foot office building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported an ENERGY STAR score of 67 out of 100 (grade C), a site energy-use intensity of 67.4 kBtu/ft² and 118 tCO₂e of greenhouse-gas emissions. That score is higher than 32% of the 356 scored office buildings in Boston.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 67 (band C) |
| Site EUI | 67.4 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 118 tCO₂e |
| GHG intensity | — |
| Electricity | 227,148 kWh |
| Natural gas | 13,808 therms |
| Gross floor area | 32,001 sq ft |
| Source record | boston:101524:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 67 | -12 | 67.4 kBtu/ft² | 118 tCO₂e |
| 2023 | 79 | 51.6 kBtu/ft² | 93 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
IQHQ-645 BEACON LLC
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Location
- Address
- 655-665 Beacon St
- City
- Boston
- State
- Massachusetts
- ZIP
- 2215.
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 655-665 Beacon St compare with other office buildings in Boston?
The latest disclosures cover 467 office buildings in Boston, out of 6,305 buildings citywide. 655-665 Beacon St's ENERGY STAR score of 67 compares with an average of 71 across the 356 that report a score; it scores higher than 32% of them and lower than 67%. Its site EUI of 67.4 kBtu/ft² is roughly in line with the average of 61.7 kBtu/ft².
At 32,001 sq ft, it is about 83% below the average floor area of 191,803 sq ft for those buildings. Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 655-665 Beacon St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 655-665 Beacon St, covering report years 2022–2024. Its ENERGY STAR score went from 79 in 2023 to 67 in 2024 (-12 points); its best year on file was 2023, at 79. Site EUI moved from 51.6 kBtu/ft² (2023) to 67.4 kBtu/ft² (2024), an 31% increase. Reported emissions went from 93 tCO₂e to 118 tCO₂e over the same span (up 27%).
What does an ENERGY STAR score of 67 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 67 means the building performs better than about 67% of its national peers. BuildingCensus bands the score into report-card grades; 67 falls in band C — below median (55–69). It sits 8 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. 655-665 Beacon St's 67.4 kBtu/ft² across 32,001 sq ft works out to about 2.2 billion Btu (632 MWh-equivalent) in 2024. The disclosure also reports 227,148 kWh of electricity and 13,808 therms of natural gas for the year.
Which law requires 655-665 Beacon St to report its energy use?
655-665 Beacon 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:101524:2024). 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 office buildings in Boston
- 234-236 Congress St· 31,752 sq ft · score 68 (C)
- 1000 Massachusetts Ave· 31,422 sq ft · score 96 (A)
- 38-42 Everett St· 31,128 sq ft · score 41 (D)
- 180 Canal St· 30,869 sq ft · score 80 (B)
- 91-95 Summer St· 30,640 sq ft
- 133-137 Portland St· 30,487 sq ft · score 59 (C)
- Office buildings in Boston· 467 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 655-665 Beacon St's energy grade?
655-665 Beacon St scores 67 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 655-665 Beacon St use?
Its 2024 site energy-use intensity was 67.4 kBtu/ft² across 32,001 sq ft, including 227,148 kWh of electricity and 13,808 therms of natural gas.
What are 655-665 Beacon St's carbon emissions?
655-665 Beacon St reported 118 tCO₂e of greenhouse-gas emissions for 2024.
Where is 655-665 Beacon St?
655-665 Beacon St is in Boston, Massachusetts 2215.
How big is 655-665 Beacon St and when was it built?
655-665 Beacon St has 32,001 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as office.
Is 655-665 Beacon 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, “655-665 Beacon St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/655-665-beacon-st-e2fa1c7a (data as of July 9, 2026).