BuildingCensus
D

51 First Street

Office in Cambridge, MA

ENERGY STAR score
8
band D · 2024
Site EUI
98.3
kBtu/ft²
GHG emissions
9
tCO₂e
GHG intensity
kgCO₂e/ft²
Floor area
1,274
sq ft
Year built
1988
vintage
◆ Loading map…
85–10070–8455–691–54
This entry + 6 nearby

BEUDO · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score8 (band D)
Site EUI98.3 kBtu/ft²
Source EUI275.2 kBtu/ft²
GHG emissions9 tCO₂e
GHG intensity
Electricity36,698 kWh
Water use24 kgal
Gross floor area1,274 sq ft
Source recordcambridge:B1897:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest8-498.3 kBtu/ft²9 tCO₂e
202312+689.0 kBtu/ft²8 tCO₂e
20226±0106.9 kBtu/ft²10 tCO₂e
20216-2105.6 kBtu/ft²10 tCO₂e
20208+399.9 kBtu/ft²9 tCO₂e
20195-5111.9 kBtu/ft²9 tCO₂e
201810-496.4 kBtu/ft²9 tCO₂e
201714+186.7 kBtu/ft²8 tCO₂e
201613+188.3 kBtu/ft²8 tCO₂e
20151291.6 kBtu/ft²9 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.

Program details →

Ownership

CAMBRIDGE CITY OF

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Location

Address
51 First Street
State
Massachusetts
Coordinates
42.36900, -71.07810

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Cambridge · biggest emitters

Frequently asked questions

What is 51 First Street's energy grade?

51 First Street scores 8 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 First Street use?

Its 2024 site energy-use intensity was 98.3 kBtu/ft² (275.2 kBtu/ft² source) across 1,274 sq ft, including 36,698 kWh of electricity.

What are 51 First Street's carbon emissions?

51 First Street reported 9 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:B1897:2024.