84-86 Brattle Street
At a glance
84-86 Brattle Street is a 73,332-square-foot residence hall/dormitory in Cambridge, Massachusetts, built in 1959. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 41 out of 100 (grade D), a site energy-use intensity of 99.2 kBtu/ft² and 423 tCO₂e of greenhouse-gas emissions. That score is higher than 0% of the 27 scored residence hall/dormitory buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 41 (band D) |
| Site EUI | 99.2 kBtu/ft² |
| Source EUI | 150.5 kBtu/ft² |
| GHG emissions | 423 tCO₂e |
| GHG intensity | — |
| Electricity | 569,236 kWh |
| Natural gas | 53,312 therms |
| Water use | 1,509 kgal |
| Gross floor area | 73,332 sq ft |
| Source record | cambridge:B1182:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 41 | -9 | 99.2 kBtu/ft² | 423 tCO₂e |
| 2023 | 50 | -8 | 88.1 kBtu/ft² | 377 tCO₂e |
| 2022 | 58 | +1 | 84.9 kBtu/ft² | 360 tCO₂e |
| 2021 | 57 | +12 | 87.2 kBtu/ft² | 368 tCO₂e |
| 2020 | 45 | +13 | 98.2 kBtu/ft² | 413 tCO₂e |
| 2019 | 32 | +2 | 118.9 kBtu/ft² | 492 tCO₂e |
| 2018 | 30 | -2 | 118.7 kBtu/ft² | 504 tCO₂e |
| 2017 | 32 | +2 | 110.7 kBtu/ft² | 484 tCO₂e |
| 2016 | 30 | +27 | 111.6 kBtu/ft² | 448 tCO₂e |
| 2015 | 3 | 187.6 kBtu/ft² | 467 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
PRESIDENT & FELLOWS OF HARVARD COLLEGE
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Location
- Address
- 84-86 Brattle Street
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.37540, -71.12430
Within ~1 km
Nearby benchmarked buildings
- 1 Bennet Streetscore 67
Hotel · 498,000 sq ft
- 1 Oxford Stscore —
College/University · 355,836 sq ft
- 75 Mount Auburn Streetscore 79
Office · 345,571 sq ft
- 1545 Massachusetts Avenuescore —
College/University · 281,097 sq ft
- 1586 Massachusetts Avenuescore —
College/University · 262,602 sq ft
- 95 Dunster Stscore —
Residence Hall/Dormitory · 257,543 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 84-86 Brattle Street compare with other residence hall/dormitory buildings in Cambridge?
The latest disclosures cover 43 residence hall/dormitory buildings in Cambridge, out of 902 buildings citywide. 84-86 Brattle Street's ENERGY STAR score of 41 compares with an average of 80 across the 27 that report a score; it scores higher than 0% of them and lower than 96%. Its site EUI of 99.2 kBtu/ft² is about 41% above the average of 70.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 73,332 sq ft, it is about 28% below the average floor area of 102,348 sq ft for those buildings. It was built in 1959, 43 years later than the group's average year built (1916). Across all 24 jurisdictions BuildingCensus covers, the 702 residence hall/dormitory buildings average an ENERGY STAR score of 70 and a site EUI of 70.7 kBtu/ft².
How has 84-86 Brattle Street's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 84-86 Brattle Street, covering report years 2015–2024. Its ENERGY STAR score went from 3 in 2015 to 41 in 2024 (+38 points); its best year on file was 2022, at 58. Site EUI moved from 187.6 kBtu/ft² (2015) to 99.2 kBtu/ft² (2024), a 47% decrease. Reported emissions went from 467 tCO₂e to 423 tCO₂e over the same span (down 9%).
What does an ENERGY STAR score of 41 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 41 means the building performs better than about 41% of its national peers. BuildingCensus bands the score into report-card grades; 41 falls in band D — lowest band (1–54). It sits 34 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. 84-86 Brattle Street's 99.2 kBtu/ft² across 73,332 sq ft works out to about 7.3 billion Btu (2,132 MWh-equivalent) in 2024. Its source EUI of 150.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 569,236 kWh of electricity, 53,312 therms of natural gas and 1,509 thousand gallons of water for the year.
Which law requires 84-86 Brattle Street to report its energy use?
84-86 Brattle Street 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:B1182:2024). 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 residence hall/dormitory buildings in Cambridge
- 35 Quincy St· 68,027 sq ft · score 93 (A)
- 1533-1541 Mass Avenue· 64,412 sq ft · score 94 (A)
- 9 Harvard Yard· 59,075 sq ft · score 94 (A)
- 63 Mt Auburn St· 58,818 sq ft · score 54 (D)
- 21 Harvard Yard· 57,869 sq ft · score 88 (A)
- 6 Harvard Yard· 56,930 sq ft · EUI 81.9 kBtu/ft²
- Residence Hall/Dormitory buildings in Cambridge· 43 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 84-86 Brattle Street's energy grade?
84-86 Brattle Street scores 41 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 Cambridge disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 84-86 Brattle Street use?
Its 2024 site energy-use intensity was 99.2 kBtu/ft² (150.5 kBtu/ft² source) across 73,332 sq ft, including 569,236 kWh of electricity and 53,312 therms of natural gas.
What are 84-86 Brattle Street's carbon emissions?
84-86 Brattle Street reported 423 tCO₂e of greenhouse-gas emissions for 2024.
Where is 84-86 Brattle Street?
84-86 Brattle Street is in Cambridge, Massachusetts. Its coordinates are 42.37540, -71.12430 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 84-86 Brattle Street and when was it built?
84-86 Brattle Street has 73,332 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1959 as its year built. It is classed as residence hall/dormitory.
Is 84-86 Brattle Street 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, “84-86 Brattle Street, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/84-86-brattle-street-8fef5d64 (data as of October 2, 2026).