255 Bent St
K-12 School in Cambridge, MA
At a glance
255 Bent St is a 16,704-square-foot K-12 school in Cambridge, Massachusetts, built in 1980. In its 2017 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 82 out of 100 (grade B), a site energy-use intensity of 61.1 kBtu/ft² and 64 tCO₂e of greenhouse-gas emissions. That score is higher than 68% of the 38 scored K-12 school buildings in Cambridge.
BEUDO · reporting year 2017
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 82 (band B) |
| Site EUI | 61.1 kBtu/ft² |
| Source EUI | 119.6 kBtu/ft² |
| GHG emissions | 64 tCO₂e |
| GHG intensity | — |
| Electricity | 129,764 kWh |
| Natural gas | 5,786 therms |
| Water use | 253 kgal |
| Gross floor area | 16,704 sq ft |
| Source record | cambridge:B1887:2017 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2017latest | 82 | +6 | 61.1 kBtu/ft² | 64 tCO₂e |
| 2016 | 76 | 62.7 kBtu/ft² | 67 tCO₂e |
Compliance context
BEUDO
Cambridge's 2023 BEUDO amendments require non-residential buildings of 100,000+ sq ft to reach net-zero emissions by 2035 (reductions starting 2026) and those of 25,000–100,000 sq ft by 2050 (starting 2030).
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 255 Bent St
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.36780, -71.08550
Within ~1 km
Nearby benchmarked buildings
- 50-60 Binney STscore —
Mixed Use Property · 532,739 sq ft
- 325 Main Stscore 87
Office · 494,512 sq ft
- 145 Broadwayscore 91
Office · 490,000 sq ft
- 314 Main St.score 80
Office · 482,220 sq ft
- 303 Binney Stscore —
Laboratory · 480,000 sq ft
- 32 VASSAR STscore —
College/University · 464,005 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 255 Bent St compare with other K-12 school buildings in Cambridge?
The latest disclosures cover 45 K-12 school buildings in Cambridge, out of 902 buildings citywide. 255 Bent St's ENERGY STAR score of 82 compares with an average of 60 across the 38 that report a score; it scores higher than 68% of them and lower than 29%. Its site EUI of 61.1 kBtu/ft² is roughly in line with the average of 62.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 16,704 sq ft, it is about 73% below the average floor area of 61,739 sq ft for those buildings. It was built in 1980, 24 years later than the group's average year built (1956). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².
How has 255 Bent St's energy performance changed over time?
BuildingCensus holds 2 Cambridge disclosures for 255 Bent St, covering report years 2016–2017. Its ENERGY STAR score went from 76 in 2016 to 82 in 2017 (+6 points). Site EUI moved from 62.7 kBtu/ft² (2016) to 61.1 kBtu/ft² (2017), a 3% decrease. Reported emissions went from 67 tCO₂e to 64 tCO₂e over the same span (down 4%).
What does an ENERGY STAR score of 82 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 82 means the building performs better than about 82% of its national peers. BuildingCensus bands the score into report-card grades; 82 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 Cambridge, 50% 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. 255 Bent St's 61.1 kBtu/ft² across 16,704 sq ft works out to about 1 billion Btu (299 MWh-equivalent) in 2017. Its source EUI of 119.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 129,764 kWh of electricity, 5,786 therms of natural gas and 253 thousand gallons of water for the year.
Which law requires 255 Bent St to report its energy use?
255 Bent St reports under BEUDO, the legal basis of Cambridge's Building Energy Use Disclosure Ordinance (BEUDO), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2017 disclosure (source record cambridge:B1887:2017). Cambridge's 2023 BEUDO amendments require non-residential buildings of 100,000+ sq ft to reach net-zero emissions by 2035 (reductions starting 2026) and those of 25,000–100,000 sq ft by 2050 (starting 2030).
More K-12 school buildings in Cambridge
- 255 Bent St· 16,407 sq ft · score 47 (D)
- 178 Coolidge Hill· 14,101 sq ft
- 178 Coolidge Hill· 14,101 sq ft · score 17 (D)
- 178 Coolidge Hill· 11,703 sq ft · score 9 (D)
- 178 Coolidge Hill· 7,239 sq ft · score 87 (A)
- 45 Alewife Brook Parkway· 5,700 sq ft · score 74 (B)
- K-12 School buildings in Cambridge· 45 benchmarked
- All Cambridge benchmarked buildings· BEUDO
- Most efficient large buildings in Cambridge
- Least efficient large buildings in Cambridge
- Biggest emitters in Cambridge
Frequently asked questions
What is 255 Bent St's energy grade?
255 Bent St scores 82 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2017 Cambridge disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 255 Bent St use?
Its 2017 site energy-use intensity was 61.1 kBtu/ft² (119.6 kBtu/ft² source) across 16,704 sq ft, including 129,764 kWh of electricity and 5,786 therms of natural gas.
What are 255 Bent St's carbon emissions?
255 Bent St reported 64 tCO₂e of greenhouse-gas emissions for 2017.
Where is 255 Bent St?
255 Bent St is in Cambridge, Massachusetts. Its coordinates are 42.36780, -71.08550 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 255 Bent St and when was it built?
255 Bent St has 16,704 sq ft of gross floor area, as reported in its 2017 disclosure. The disclosure lists 1980 as its year built. It is classed as K-12 school.
Is 255 Bent St covered by BEUDO?
Yes — it appears in the 2017 Building Energy Use Disclosure Ordinance (BEUDO) disclosure, which lists the buildings reporting under BEUDO.
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About this data
Source: Building Energy Use Disclosure Ordinance (BEUDO) (BEUDO), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “255 Bent St, Cambridge, Massachusetts — 2017 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/255-bent-st-981143c1 (data as of October 2, 2026).