215 Monsignor O'Brien Highway
Hotel in Cambridge, MA
At a glance
215 Monsignor O'Brien Highway is a 77,397-square-foot hotel in Cambridge, Massachusetts, built in 2015. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 89 out of 100 (grade A), a site energy-use intensity of 45.0 kBtu/ft² and 222 tCO₂e of greenhouse-gas emissions. That score is higher than 78% of the 18 scored hotel buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 89 (band A) |
| Site EUI | 45.0 kBtu/ft² |
| Source EUI | 90.9 kBtu/ft² |
| GHG emissions | 222 tCO₂e |
| GHG intensity | — |
| Electricity | 566,067 kWh |
| Natural gas | 15,517 therms |
| Water use | 2 kgal |
| Gross floor area | 77,397 sq ft |
| Source record | cambridge:B1420:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 89 | +2 | 45.0 kBtu/ft² | 222 tCO₂e |
| 2023 | 87 | +1 | 60.0 kBtu/ft² | 219 tCO₂e |
| 2022 | 86 | -4 | 60.7 kBtu/ft² | 222 tCO₂e |
| 2021 | 90 | -6 | 56.0 kBtu/ft² | 207 tCO₂e |
| 2020 | 96 | +11 | 44.9 kBtu/ft² | 166 tCO₂e |
| 2019 | 85 | ±0 | 60.8 kBtu/ft² | 211 tCO₂e |
| 2018 | 85 | +1 | 58.9 kBtu/ft² | 216 tCO₂e |
| 2017 | 84 | -2 | 59.5 kBtu/ft² | 228 tCO₂e |
| 2016 | 86 | 56.5 kBtu/ft² | 219 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
MONSIGNOR HOTEL, LLC
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Location
- Address
- 215 Monsignor O'Brien Highway
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.37290, -71.07980
Within ~1 km
Nearby benchmarked buildings
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- One Leighton Streetscore 21
Multifamily Housing · 612,952 sq ft
- 50-60 Binney STscore —
Mixed Use Property · 532,739 sq ft
- 222 Jacobs Streetscore —
Laboratory · 466,713 sq ft
- 8 Charles River Damscore —
Museum · 460,555 sq ft
- 301 Binney Streetscore —
Laboratory · 447,187 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 215 Monsignor O'Brien Highway compare with other hotel buildings in Cambridge?
The latest disclosures cover 19 hotel buildings in Cambridge, out of 902 buildings citywide. 215 Monsignor O'Brien Highway's ENERGY STAR score of 89 compares with an average of 55 across the 18 that report a score; it scores higher than 78% of them and lower than 17%. Its site EUI of 45.0 kBtu/ft² is about half of the average of 98.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 77,397 sq ft, it is about half of the average floor area of 146,134 sq ft for those buildings. It was built in 2015, 26 years later than the group's average year built (1990). Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².
How has 215 Monsignor O'Brien Highway's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 215 Monsignor O'Brien Highway, covering report years 2015–2024. Its ENERGY STAR score went from 86 in 2016 to 89 in 2024 (+3 points); its best year on file was 2020, at 96. Site EUI moved from 56.5 kBtu/ft² (2016) to 45.0 kBtu/ft² (2024), a 20% decrease.
What does an ENERGY STAR score of 89 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: a score of 89 means the building performs better than about 89% of its national peers. BuildingCensus bands the score into report-card grades; 89 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. 215 Monsignor O'Brien Highway's 45.0 kBtu/ft² across 77,397 sq ft works out to about 3.5 billion Btu (1,021 MWh-equivalent) in 2024. Its source EUI of 90.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 566,067 kWh of electricity, 15,517 therms of natural gas and 2 thousand gallons of water for the year.
Which law requires 215 Monsignor O'Brien Highway to report its energy use?
215 Monsignor O'Brien Highway 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:B1420:2024). 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 hotel buildings in Cambridge
- 220 Alewife Brook Parkway· 62,000 sq ft · score 76 (B)
- 20 Quincy St· 39,895 sq ft · score 19 (D)
- 907 Main Street· 39,683 sq ft · EUI 139.5 kBtu/ft²
- 350 MAIN ST· 34,388 sq ft · score 11 (D)
- 110 Mt Auburn Street· 29,583 sq ft · score 38 (D)
- 1924 Massachusetts Ave· 27,944 sq ft · score 34 (D)
- 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 215 Monsignor O'Brien Highway's energy grade?
215 Monsignor O'Brien Highway scores 89 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 215 Monsignor O'Brien Highway use?
Its 2024 site energy-use intensity was 45.0 kBtu/ft² (90.9 kBtu/ft² source) across 77,397 sq ft, including 566,067 kWh of electricity and 15,517 therms of natural gas.
What are 215 Monsignor O'Brien Highway's carbon emissions?
215 Monsignor O'Brien Highway reported 222 tCO₂e of greenhouse-gas emissions for 2024.
Where is 215 Monsignor O'Brien Highway?
215 Monsignor O'Brien Highway is in Cambridge, Massachusetts. Its coordinates are 42.37290, -71.07980 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 215 Monsignor O'Brien Highway and when was it built?
215 Monsignor O'Brien Highway has 77,397 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2015 as its year built. It is classed as hotel.
Is 215 Monsignor O'Brien Highway 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, “215 Monsignor O'Brien Highway, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/215-monsignor-o-brien-highway-f8498d83 (data as of October 2, 2026).