225 Monsignor O'Brien Hwy.
Manufacturing/Industrial Plant in Cambridge, MA
At a glance
225 Monsignor O'Brien Hwy. is a 65,704-square-foot manufacturing/industrial plant in Cambridge, Massachusetts, built in 1931. In its 2024 Cambridge benchmarking disclosure it reported a site energy-use intensity of 90.2 kBtu/ft² and 349 tCO₂e of greenhouse-gas emissions.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 90.2 kBtu/ft² |
| Source EUI | 142.8 kBtu/ft² |
| GHG emissions | 349 tCO₂e |
| GHG intensity | — |
| Electricity | 529,600 kWh |
| Natural gas | 41,187 therms |
| Water use | 1,047 kgal |
| Gross floor area | 65,704 sq ft |
| Source record | cambridge:B1671:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 90.2 kBtu/ft² | 349 tCO₂e | |
| 2023 | — | — | 0 tCO₂e | |
| 2022 | — | — | 0 tCO₂e | |
| 2021 | — | — | 140 tCO₂e | |
| 2020 | — | 99.7 kBtu/ft² | 385 tCO₂e | |
| 2019 | — | — | 0 tCO₂e | |
| 2018 | — | 99.7 kBtu/ft² | 380 tCO₂e | |
| 2017 | — | 100.2 kBtu/ft² | 390 tCO₂e | |
| 2016 | — | 97.5 kBtu/ft² | 380 tCO₂e | |
| 2015 | — | 104.1 kBtu/ft² | 408 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).
Ownership
EASTMAN BROOK LLC,
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Location
- Address
- 225 Monsignor O'Brien Hwy.
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.37320, -71.08030
Within ~1 km
Nearby benchmarked buildings
- 100 Cambridge Side Placescore —
Enclosed Mall · 747,697 sq ft
- One Leighton Streetscore 21
Multifamily Housing · 612,952 sq ft
- 222 Jacobs Streetscore —
Laboratory · 466,713 sq ft
- 301 Binney Streetscore —
Laboratory · 447,187 sq ft
- 151 North First Streetscore 63
Multifamily Housing · 434,093 sq ft
- 140 First Streetscore —
Laboratory · 408,259 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 225 Monsignor O'Brien Hwy. compare with other buildings in Cambridge?
The latest disclosures cover 902 benchmarked buildings in Cambridge. Its site EUI of 90.2 kBtu/ft² is about 23% below the average of 117.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 65,704 sq ft, it is about 43% below the average floor area of 114,869 sq ft for those buildings. It was built in 1931, 31 years earlier than the group's average year built (1962). Across all 24 jurisdictions BuildingCensus covers, the 2,372 manufacturing/industrial plant buildings average an ENERGY STAR score of 67 and a site EUI of 126.3 kBtu/ft².
How has 225 Monsignor O'Brien Hwy.'s energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 225 Monsignor O'Brien Hwy., covering report years 2015–2024. Site EUI moved from 104.1 kBtu/ft² (2015) to 90.2 kBtu/ft² (2024), a 13% decrease. Reported emissions went from 408 tCO₂e to 349 tCO₂e over the same span (down 14%).
What does a site EUI of 90.2 kBtu/ft² mean?
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. 225 Monsignor O'Brien Hwy.'s 90.2 kBtu/ft² across 65,704 sq ft works out to about 5.9 billion Btu (1,737 MWh-equivalent) in 2024. Its source EUI of 142.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 529,600 kWh of electricity, 41,187 therms of natural gas and 1,047 thousand gallons of water for the year.
Which law requires 225 Monsignor O'Brien Hwy. to report its energy use?
225 Monsignor O'Brien Hwy. reports under BEUDO, the legal basis of Cambridge's Building Energy Use Disclosure Ordinance (BEUDO), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record cambridge:B1671:2024). 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).
More manufacturing/industrial plant buildings in Cambridge
Frequently asked questions
What is 225 Monsignor O'Brien Hwy.'s energy grade?
225 Monsignor O'Brien Hwy. did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 90.2 kBtu/ft².
How much energy does 225 Monsignor O'Brien Hwy. use?
Its 2024 site energy-use intensity was 90.2 kBtu/ft² (142.8 kBtu/ft² source) across 65,704 sq ft, including 529,600 kWh of electricity and 41,187 therms of natural gas.
What are 225 Monsignor O'Brien Hwy.'s carbon emissions?
225 Monsignor O'Brien Hwy. reported 349 tCO₂e of greenhouse-gas emissions for 2024.
Where is 225 Monsignor O'Brien Hwy.?
225 Monsignor O'Brien Hwy. is in Cambridge, Massachusetts. Its coordinates are 42.37320, -71.08030 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 225 Monsignor O'Brien Hwy. and when was it built?
225 Monsignor O'Brien Hwy. has 65,704 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1931 as its year built. It is classed as manufacturing/industrial plant.
Is 225 Monsignor O'Brien Hwy. covered by BEUDO?
Yes — it appears in the 2024 Building Energy Use Disclosure Ordinance (BEUDO) disclosure, which lists the buildings reporting under BEUDO.
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About this data
Source: Building Energy Use Disclosure Ordinance (BEUDO) (BEUDO), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “225 Monsignor O'Brien Hwy., Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/225-monsignor-o-brien-hwy-a1e3628b (data as of October 2, 2026).