BuildingCensus
D

51 Brattle Street

Office in Cambridge, MA

ENERGY STAR score
45
band D · 2024
Site EUI
88.7
kBtu/ft²
GHG emissions
258
tCO₂e
GHG intensity
kgCO₂e/ft²
Floor area
46,245
sq ft
Year built
2006
vintage
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85–10070–8455–691–54
This entry + 6 nearby

BEUDO · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score45 (band D)
Site EUI88.7 kBtu/ft²
Source EUI172.4 kBtu/ft²
GHG emissions258 tCO₂e
GHG intensity
Electricity613,653 kWh
Natural gas20,099 therms
Water use461 kgal
Gross floor area46,245 sq ft
Source recordcambridge:B1287:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest45±088.7 kBtu/ft²258 tCO₂e
202345-1691.7 kBtu/ft²262 tCO₂e
202261-267.0 kBtu/ft²199 tCO₂e
202163+477.1 kBtu/ft²217 tCO₂e
202059+2272.3 kBtu/ft²209 tCO₂e
201937+1095.9 kBtu/ft²266 tCO₂e
201827+1102.9 kBtu/ft²305 tCO₂e
201726-8108.4 kBtu/ft²330 tCO₂e
201634+891.8 kBtu/ft²285 tCO₂e
201526108.9 kBtu/ft²337 tCO₂e

Compliance context

BEUDO

Cambridge's 2023 BEUDO amendments require large non-residential buildings to cut emissions to net zero by 2035–2050, with compliance obligations starting from 2025 reporting.

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Ownership

PRESIDENT & FELLOWS OF HARVARD COLLEGE

Own or manage this building? Claim it to correct the record and get compliance alerts.

Location

Address
51 Brattle Street
State
Massachusetts
Coordinates
42.37450, -71.12150

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Cambridge · biggest emitters

Frequently asked questions

What is 51 Brattle Street's energy grade?

51 Brattle Street scores 45 out of 100 on ENERGY STAR — band D (Lowest band (1–54)) — in its 2024 Cambridge disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does 51 Brattle Street use?

Its 2024 site energy-use intensity was 88.7 kBtu/ft² (172.4 kBtu/ft² source) across 46,245 sq ft, including 613,653 kWh of electricity and 20,099 therms of natural gas.

What are 51 Brattle Street's carbon emissions?

51 Brattle Street reported 258 tCO₂e of greenhouse-gas emissions for 2024. Cambridge's 2023 BEUDO amendments require large non-residential buildings to cut emissions to net zero by 2035–2050, with compliance obligations starting from 2025 reporting.

Dataset updated . Source: Building Energy Use Disclosure Ordinance (BEUDO) disclosure, record cambridge:B1287:2024.