50 Churchill
Multifamily Housing in Cambridge, MA
At a glance
50 Churchill is a 141,759-square-foot multifamily housing building in Cambridge, Massachusetts, built in 1973. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 62 out of 100 (grade C), a site energy-use intensity of 90.2 kBtu/ft² and 708 tCO₂e of greenhouse-gas emissions. That score is higher than 25% of the 155 scored multifamily housing buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 62 (band C) |
| Site EUI | 90.2 kBtu/ft² |
| Source EUI | 119.1 kBtu/ft² |
| GHG emissions | 708 tCO₂e |
| GHG intensity | — |
| Electricity | 579,800 kWh |
| Natural gas | 106,396 therms |
| Water use | 4,639 kgal |
| Gross floor area | 141,759 sq ft |
| Source record | cambridge:B1444:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 62 | -1 | 90.2 kBtu/ft² | 708 tCO₂e |
| 2023 | 63 | -20 | 88.6 kBtu/ft² | 695 tCO₂e |
| 2022 | 83 | +15 | 67.3 kBtu/ft² | 546 tCO₂e |
| 2021 | 68 | +20 | 74.7 kBtu/ft² | 572 tCO₂e |
| 2020 | 48 | +15 | 90.7 kBtu/ft² | 673 tCO₂e |
| 2019 | 33 | -16 | 104.8 kBtu/ft² | 753 tCO₂e |
| 2018 | 49 | +12 | 90.7 kBtu/ft² | 673 tCO₂e |
| 2017 | 37 | -5 | 96.2 kBtu/ft² | 729 tCO₂e |
| 2016 | 42 | +6 | 88.7 kBtu/ft² | 681 tCO₂e |
| 2015 | 36 | 96.9 kBtu/ft² | 748 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 HOUSING AUTHORITY
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Location
- Address
- 50 Churchill
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.40040, -71.13190
Within ~1 km
Nearby benchmarked buildings
- 402 Rindge Avenuescore 88
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- 364 Rindge Avescore 46
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- 362 Rindge Avescore 57
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- 1 Jackson Placescore 88
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- 1 Whittemore Avescore 100
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- 1 Matignon Rd.score —
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See also: most efficient in Cambridge · biggest emitters
How does 50 Churchill compare with other multifamily housing buildings in Cambridge?
The latest disclosures cover 187 multifamily housing buildings in Cambridge, out of 902 buildings citywide. 50 Churchill's ENERGY STAR score of 62 compares with an average of 75 across the 155 that report a score; it scores higher than 25% of them and lower than 74%. Its site EUI of 90.2 kBtu/ft² is about 59% above the average of 56.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 141,759 sq ft, it is roughly in line with the average floor area of 132,415 sq ft for those buildings. Its 1973 construction date is close to 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 50 Churchill's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 50 Churchill, covering report years 2015–2024. Its ENERGY STAR score went from 36 in 2015 to 62 in 2024 (+26 points); its best year on file was 2022, at 83. Site EUI moved from 96.9 kBtu/ft² (2015) to 90.2 kBtu/ft² (2024), a 7% decrease. Reported emissions went from 748 tCO₂e to 708 tCO₂e over the same span (down 5%).
What does an ENERGY STAR score of 62 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 62 means the building performs better than about 62% of its national peers. BuildingCensus bands the score into report-card grades; 62 falls in band C — below median (55–69). It sits 13 points below 75, the threshold for ENERGY STAR certification. 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. 50 Churchill's 90.2 kBtu/ft² across 141,759 sq ft works out to about 12.8 billion Btu (3,747 MWh-equivalent) in 2024. Its source EUI of 119.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 579,800 kWh of electricity, 106,396 therms of natural gas and 4,639 thousand gallons of water for the year.
Which law requires 50 Churchill to report its energy use?
50 Churchill 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:B1444:2024). 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
- 950 Massachusetts Avenue· 137,010 sq ft · EUI 57.2 kBtu/ft²
- 1 Earhart Street· 136,655 sq ft · score 67 (C)
- 14 Roosevelt Towers· 134,884 sq ft · score 45 (D)
- 1010 Memorial Drive· 133,981 sq ft · score 69 (C)
- 221 Mount Auburn Street· 126,258 sq ft · score 93 (A)
- 64 Magee Street· 126,002 sq ft · score 93 (A)
- 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 50 Churchill's energy grade?
50 Churchill scores 62 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 Cambridge disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 50 Churchill use?
Its 2024 site energy-use intensity was 90.2 kBtu/ft² (119.1 kBtu/ft² source) across 141,759 sq ft, including 579,800 kWh of electricity and 106,396 therms of natural gas.
What are 50 Churchill's carbon emissions?
50 Churchill reported 708 tCO₂e of greenhouse-gas emissions for 2024.
Where is 50 Churchill?
50 Churchill is in Cambridge, Massachusetts. Its coordinates are 42.40040, -71.13190 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 50 Churchill and when was it built?
50 Churchill has 141,759 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1973 as its year built. It is classed as multifamily housing.
Is 50 Churchill 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, “50 Churchill, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/50-churchill-591bb29f (data as of October 2, 2026).