262 Monsignor O'Brien Hwy
Multifamily Housing in Cambridge, MA
At a glance
262 Monsignor O'Brien Hwy is a 49,096-square-foot multifamily housing building in Cambridge, Massachusetts, built in 2018. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 36.5 kBtu/ft² and 106 tCO₂e of greenhouse-gas emissions. That score is higher than 85% of the 155 scored multifamily housing buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 36.5 kBtu/ft² |
| Source EUI | 59.3 kBtu/ft² |
| GHG emissions | 106 tCO₂e |
| GHG intensity | — |
| Electricity | 171,782 kWh |
| Natural gas | 12,080 therms |
| Water use | 1,387 kgal |
| Gross floor area | 49,096 sq ft |
| Source record | cambridge:B1691:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 36.5 kBtu/ft² | 106 tCO₂e |
| 2023 | 100 | ±0 | 40.0 kBtu/ft² | 116 tCO₂e |
| 2022 | 100 | ±0 | 4.9 kBtu/ft² | 13 tCO₂e |
| 2021 | 100 | ±0 | 5.5 kBtu/ft² | 14 tCO₂e |
| 2020 | 100 | ±0 | 4.7 kBtu/ft² | 12 tCO₂e |
| 2019 | 100 | 5.9 kBtu/ft² | 15 tCO₂e | |
| 2018 | — | — | 0 tCO₂e | |
| 2017 | — | — | 0 tCO₂e | |
| 2016 | — | — | 0 tCO₂e | |
| 2015 | — | — | 0 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
CAMBRIDGE CAPITAL GROUP LLC,
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 262 Monsignor O'Brien Hwy
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.37330, -71.08210
Within ~1 km
Nearby benchmarked buildings
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- 303 Binney Stscore —
Laboratory · 480,000 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 262 Monsignor O'Brien Hwy compare with other multifamily housing buildings in Cambridge?
The latest disclosures cover 187 multifamily housing buildings in Cambridge, out of 902 buildings citywide. 262 Monsignor O'Brien Hwy's ENERGY STAR score of 100 compares with an average of 75 across the 155 that report a score; it scores higher than 85% of them. Its site EUI of 36.5 kBtu/ft² is about 36% below the average of 56.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 49,096 sq ft, it is about 63% below the average floor area of 132,415 sq ft for those buildings. It was built in 2018, 45 years later than the group's average year built (1973). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has 262 Monsignor O'Brien Hwy's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 262 Monsignor O'Brien Hwy, covering report years 2015–2024. Its ENERGY STAR score was 100 in both 2019 and 2024. Site EUI moved from 5.9 kBtu/ft² (2019) to 36.5 kBtu/ft² (2024), an 519% increase.
What does an ENERGY STAR score of 100 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In Cambridge, 50% of scored buildings are at 75 or above.
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. 262 Monsignor O'Brien Hwy's 36.5 kBtu/ft² across 49,096 sq ft works out to about 1.8 billion Btu (525 MWh-equivalent) in 2024. Its source EUI of 59.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 171,782 kWh of electricity, 12,080 therms of natural gas and 1,387 thousand gallons of water for the year.
Which law requires 262 Monsignor O'Brien Hwy to report its energy use?
262 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:B1691:2024). 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 multifamily housing buildings in Cambridge
- 842-860 (even) Massachusetts Ave· 48,704 sq ft · score 65 (C)
- 1610-1616-1622 Massachusetts Avenue· 47,492 sq ft · score 74 (B)
- 16 Chauncy Street· 47,000 sq ft · score 91 (A)
- 25 Eighth Street· 46,408 sq ft · score 40 (D)
- 2, 4, 6 Arlington Street· 45,876 sq ft · score 47 (D)
- 1 Aberdeen Way· 45,700 sq ft · score 9 (D)
- Multifamily Housing buildings in Cambridge· 187 benchmarked
- All Cambridge benchmarked buildings· BEUDO
- Most efficient large buildings in Cambridge
- Least efficient large buildings in Cambridge
- Biggest emitters in Cambridge
Frequently asked questions
What is 262 Monsignor O'Brien Hwy's energy grade?
262 Monsignor O'Brien Hwy scores 100 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 262 Monsignor O'Brien Hwy use?
Its 2024 site energy-use intensity was 36.5 kBtu/ft² (59.3 kBtu/ft² source) across 49,096 sq ft, including 171,782 kWh of electricity and 12,080 therms of natural gas.
What are 262 Monsignor O'Brien Hwy's carbon emissions?
262 Monsignor O'Brien Hwy reported 106 tCO₂e of greenhouse-gas emissions for 2024.
Where is 262 Monsignor O'Brien Hwy?
262 Monsignor O'Brien Hwy is in Cambridge, Massachusetts. Its coordinates are 42.37330, -71.08210 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 262 Monsignor O'Brien Hwy and when was it built?
262 Monsignor O'Brien Hwy has 49,096 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2018 as its year built. It is classed as multifamily housing.
Is 262 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, “262 Monsignor O'Brien Hwy, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/262-monsignor-o-brien-hwy-1c630912 (data as of October 2, 2026).