BuildingCensus
A

25 First Street

Office in Cambridge, MA

ENERGY STAR score
91
band A · 2024
Site EUI
34.0
kBtu/ft²
GHG emissions
558
tCO₂e
GHG intensity
—
kgCO₂e/ft²
Floor area
252,662
sq ft
Year built
1851
vintage
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85–10070–8455–691–54
This entry + 6 nearby

BEUDO · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score91 (band A)
Site EUI34.0 kBtu/ft²
Source EUI72.6 kBtu/ft²
GHG emissions558 tCO₂e
GHG intensity—
Electricity1,560,904 kWh
Natural gas32,647 therms
Water use658 kgal
Gross floor area252,662 sq ft
Source recordcambridge:B1807:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest91+334.0 kBtu/ft²558 tCO₂e
202388+1233.7 kBtu/ft²572 tCO₂e
202276-143.4 kBtu/ft²743 tCO₂e
202177-745.0 kBtu/ft²768 tCO₂e
202084+242.6 kBtu/ft²722 tCO₂e
201982-756.6 kBtu/ft²916 tCO₂e
201889-154.1 kBtu/ft²928 tCO₂e
201790-350.1 kBtu/ft²921 tCO₂e
201693+945.3 kBtu/ft²822 tCO₂e
20158457.5 kBtu/ft²1,072 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).

Program details →

Ownership

DAVENPORT OWNER (DE) LLC,

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Location

Address
25 First Street
State
Massachusetts
Coordinates
42.36970, -71.07790

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Cambridge · biggest emitters

Frequently asked questions

What is 25 First Street's energy grade?

25 First Street scores 91 out of 100 on ENERGY STAR — band A (High performer (85–100)) — in its 2024 Cambridge disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does 25 First Street use?

Its 2024 site energy-use intensity was 34.0 kBtu/ft² (72.6 kBtu/ft² source) across 252,662 sq ft, including 1,560,904 kWh of electricity and 32,647 therms of natural gas.

What are 25 First Street's carbon emissions?

25 First Street reported 558 tCO₂e of greenhouse-gas emissions for 2024. 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).

Working with Cambridge building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

Dataset updated . Source: Building Energy Use Disclosure Ordinance (BEUDO) disclosure, record cambridge:B1807:2024.