41 Pilgrim St
Multifamily Housing in Cambridge, MA
At a glance
41 Pilgrim St is a 6,350-square-foot multifamily housing building in Cambridge, Massachusetts, built in 1990. In its 2024 Cambridge benchmarking disclosure it reported a site energy-use intensity of 49.2 kBtu/ft² and 18 tCO₂e of greenhouse-gas emissions.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 49.2 kBtu/ft² |
| Source EUI | 75.0 kBtu/ft² |
| GHG emissions | 18 tCO₂e |
| GHG intensity | — |
| Electricity | 24,820 kWh |
| Natural gas | 2,276 therms |
| Water use | 386 kgal |
| Gross floor area | 6,350 sq ft |
| Source record | cambridge:B1761:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 49.2 kBtu/ft² | 18 tCO₂e | |
| 2023 | — | 59.8 kBtu/ft² | 22 tCO₂e | |
| 2022 | — | 55.0 kBtu/ft² | 20 tCO₂e | |
| 2021 | — | 74.9 kBtu/ft² | 27 tCO₂e | |
| 2020 | — | 75.9 kBtu/ft² | 27 tCO₂e | |
| 2019 | — | 75.7 kBtu/ft² | 27 tCO₂e | |
| 2018 | — | 99.9 kBtu/ft² | 35 tCO₂e | |
| 2017 | — | 74.9 kBtu/ft² | 28 tCO₂e | |
| 2016 | — | 75.9 kBtu/ft² | 27 tCO₂e | |
| 2015 | — | 76.2 kBtu/ft² | 27 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
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
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Location
- Address
- 41 Pilgrim St
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.36160, -71.10290
Within ~1 km
Nearby benchmarked buildings
- 250 Massachusetts Avenuescore —
Laboratory · 1,362,662 sq ft
- 250 Massachusetts Avenuescore —
Laboratory · 517,029 sq ft
- 70 PACIFIC STscore —
College/University · 362,687 sq ft
- 575 Memorial Drivescore 37
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- 45 Sidney Streetscore —
Laboratory · 277,000 sq ft
- 131 Washington Streetscore 68
Multifamily Housing · 275,666 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 41 Pilgrim St compare with other multifamily housing buildings in Cambridge?
The latest disclosures cover 187 multifamily housing buildings in Cambridge, out of 902 buildings citywide. Its site EUI of 49.2 kBtu/ft² is about 14% below the average of 56.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 6,350 sq ft, it is about 95% below the average floor area of 132,415 sq ft for those buildings. It was built in 1990, 17 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 41 Pilgrim St's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 41 Pilgrim St, covering report years 2015–2024. Site EUI moved from 76.2 kBtu/ft² (2015) to 49.2 kBtu/ft² (2024), a 35% decrease. Reported emissions went from 27 tCO₂e to 18 tCO₂e over the same span (down 34%).
What does a site EUI of 49.2 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. 41 Pilgrim St's 49.2 kBtu/ft² across 6,350 sq ft works out to about 0.3 billion Btu (92 MWh-equivalent) in 2024. Its source EUI of 75.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 24,820 kWh of electricity, 2,276 therms of natural gas and 386 thousand gallons of water for the year.
Which law requires 41 Pilgrim St to report its energy use?
41 Pilgrim St 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:B1761:2024). 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
- 42 Pilgrim St· 5,750 sq ft · EUI 71.3 kBtu/ft²
- 5 Mellen Street· 4,600 sq ft · EUI 35.4 kBtu/ft²
- 117 Pacific St· 3,449 sq ft · EUI 71.4 kBtu/ft²
- 0 Chauncy Street· 3,000 sq ft · EUI 55.8 kBtu/ft²
- 3 Mellen Street· 2,123 sq ft · EUI 37.3 kBtu/ft²
- 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 41 Pilgrim St's energy grade?
41 Pilgrim St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 49.2 kBtu/ft².
How much energy does 41 Pilgrim St use?
Its 2024 site energy-use intensity was 49.2 kBtu/ft² (75.0 kBtu/ft² source) across 6,350 sq ft, including 24,820 kWh of electricity and 2,276 therms of natural gas.
What are 41 Pilgrim St's carbon emissions?
41 Pilgrim St reported 18 tCO₂e of greenhouse-gas emissions for 2024.
Where is 41 Pilgrim St?
41 Pilgrim St is in Cambridge, Massachusetts. Its coordinates are 42.36160, -71.10290 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 41 Pilgrim St and when was it built?
41 Pilgrim St has 6,350 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1990 as its year built. It is classed as multifamily housing.
Is 41 Pilgrim St 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, “41 Pilgrim St, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/41-pilgrim-st-4530caf5 (data as of October 2, 2026).