BuildingCensus
D

485 Mass Ave.

Office in Cambridge, MA

ENERGY STAR score
15
band D · 2024
Site EUI
108.1
kBtu/ft²
GHG emissions
272
tCO₂e
GHG intensity
kgCO₂e/ft²
Floor area
39,961
sq ft
Year built
1926
vintage
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85–10070–8455–691–54
This entry + 6 nearby

BEUDO · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score15 (band D)
Site EUI108.1 kBtu/ft²
Source EUI210.1 kBtu/ft²
GHG emissions272 tCO₂e
GHG intensity
Electricity646,836 kWh
Natural gas21,120 therms
Water use12 kgal
Gross floor area39,961 sq ft
Source recordcambridge:B1460:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest15-2108.1 kBtu/ft²272 tCO₂e
202317-17103.6 kBtu/ft²261 tCO₂e
202234-1684.1 kBtu/ft²209 tCO₂e
202150-1760.6 kBtu/ft²157 tCO₂e
202067-3257.1 kBtu/ft²141 tCO₂e
201999-139.9 kBtu/ft²216 tCO₂e
2018100+1720.6 kBtu/ft²206 tCO₂e
201783+392.1 kBtu/ft²351 tCO₂e
201680-1199.1 kBtu/ft²210 tCO₂e
20159173.9 kBtu/ft²157 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

JUSTMASS LLC,

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

Location

Address
485 Mass Ave.
State
Massachusetts
Coordinates
42.36420, -71.10110

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Cambridge · biggest emitters

Frequently asked questions

What is 485 Mass Ave.'s energy grade?

485 Mass Ave. scores 15 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 485 Mass Ave. use?

Its 2024 site energy-use intensity was 108.1 kBtu/ft² (210.1 kBtu/ft² source) across 39,961 sq ft, including 646,836 kWh of electricity and 21,120 therms of natural gas.

What are 485 Mass Ave.'s carbon emissions?

485 Mass Ave. reported 272 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:B1460:2024.