BuildingCensus
B

139 Main St

Office in Cambridge, MA

ENERGY STAR score
80
band B · 2024
Site EUI
59.5
kBtu/ft²
GHG emissions
152
tCO₂e
GHG intensity
kgCO₂e/ft²
Floor area
41,857
sq ft
Year built
2019
vintage
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85–10070–8455–691–54
This entry + 6 nearby

BEUDO · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score80 (band B)
Site EUI59.5 kBtu/ft²
Source EUI106.0 kBtu/ft²
GHG emissions152 tCO₂e
GHG intensity
Electricity304,928 kWh
Natural gas14,507 therms
Water use211 kgal
Gross floor area41,857 sq ft
Source recordcambridge:B1315:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest80-759.5 kBtu/ft²152 tCO₂e
202387-146.8 kBtu/ft²122 tCO₂e
202288±046.1 kBtu/ft²120 tCO₂e
202188+447.1 kBtu/ft²122 tCO₂e
202084+1357.2 kBtu/ft²143 tCO₂e
20197171.3 kBtu/ft²175 tCO₂e
2018
2017
2016
2015

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

MIT 139 MAIN ST FEE OWNER LLC

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

Location

Address
139 Main St
State
Massachusetts
Coordinates
42.36230, -71.08230

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Cambridge · biggest emitters

Frequently asked questions

What is 139 Main St's energy grade?

139 Main St scores 80 out of 100 on ENERGY STAR — band B (Above median (70–84)) — in its 2024 Cambridge disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does 139 Main St use?

Its 2024 site energy-use intensity was 59.5 kBtu/ft² (106.0 kBtu/ft² source) across 41,857 sq ft, including 304,928 kWh of electricity and 14,507 therms of natural gas.

What are 139 Main St's carbon emissions?

139 Main St reported 152 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:B1315:2024.