45 Quincy St
College/University in Cambridge, MA
At a glance
45 Quincy St is a 119,575-square-foot college/university building in Cambridge, Massachusetts, built in 1878. In its 2024 Cambridge benchmarking disclosure it reported a site energy-use intensity of 172.6 kBtu/ft² and 1,348 tCO₂e of greenhouse-gas emissions.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 172.6 kBtu/ft² |
| Source EUI | 257.7 kBtu/ft² |
| GHG emissions | 1,348 tCO₂e |
| GHG intensity | — |
| Electricity | 1,316,798 kWh |
| Natural gas | 14,417 therms |
| Water use | 4,206 kgal |
| Gross floor area | 119,575 sq ft |
| Source record | cambridge:B1168:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 172.6 kBtu/ft² | 1,348 tCO₂e | |
| 2023 | — | 175.6 kBtu/ft² | 1,369 tCO₂e | |
| 2022 | — | 180.8 kBtu/ft² | 1,412 tCO₂e | |
| 2021 | — | 133.8 kBtu/ft² | 1,053 tCO₂e | |
| 2020 | — | 115.5 kBtu/ft² | 903 tCO₂e | |
| 2019 | — | 167.2 kBtu/ft² | 1,285 tCO₂e | |
| 2018 | — | — | 78 tCO₂e | |
| 2017 | — | 212.8 kBtu/ft² | 1,689 tCO₂e | |
| 2016 | — | 214.4 kBtu/ft² | 1,700 tCO₂e | |
| 2015 | — | 231.1 kBtu/ft² | 1,846 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
- 45 Quincy St
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.37600, -71.11510
Within ~1 km
Nearby benchmarked buildings
- 52 Oxford Stscore —
College/University · 551,387 sq ft
- 1 Bennet Streetscore 67
Hotel · 498,000 sq ft
- 459 Broadwayscore 71
K-12 School · 403,393 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
See also: most efficient in Cambridge · biggest emitters
How does 45 Quincy St compare with other college/university buildings in Cambridge?
The latest disclosures cover 203 college/university buildings in Cambridge, out of 902 buildings citywide. Its site EUI of 172.6 kBtu/ft² is about 12% above the average of 154.3 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 119,575 sq ft, it is about 23% above the average floor area of 96,964 sq ft for those buildings. It was built in 1878, 71 years earlier than the group's average year built (1949). Across all 24 jurisdictions BuildingCensus covers, the 2,113 college/university buildings average an ENERGY STAR score of 68 and a site EUI of 98.7 kBtu/ft².
How has 45 Quincy St's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 45 Quincy St, covering report years 2015–2024. Site EUI moved from 231.1 kBtu/ft² (2015) to 172.6 kBtu/ft² (2024), a 25% decrease. Reported emissions went from 1,846 tCO₂e to 1,348 tCO₂e over the same span (down 27%).
What does a site EUI of 172.6 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. 45 Quincy St's 172.6 kBtu/ft² across 119,575 sq ft works out to about 20.6 billion Btu (6,049 MWh-equivalent) in 2024. Its source EUI of 257.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,316,798 kWh of electricity, 14,417 therms of natural gas and 4,206 thousand gallons of water for the year.
Which law requires 45 Quincy St to report its energy use?
45 Quincy 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:B1168:2024). 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 college/university buildings in Cambridge
- 77 MASSACHUSETTS AVE· 119,055 sq ft · EUI 188.8 kBtu/ft²
- 38 Oxford St· 118,059 sq ft · EUI 32.7 kBtu/ft²
- 100 Edwin Land Blvd· 117,919 sq ft · EUI 111.5 kBtu/ft²
- 21 AMES ST· 116,490 sq ft · EUI 405.3 kBtu/ft²
- 33 MASSACHUSETTS AVE· 116,239 sq ft · EUI 123.0 kBtu/ft²
- 471-476 MEMORIAL DR· 114,930 sq ft · EUI 103.4 kBtu/ft²
- College/University buildings in Cambridge· 203 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 45 Quincy St's energy grade?
45 Quincy St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 172.6 kBtu/ft².
How much energy does 45 Quincy St use?
Its 2024 site energy-use intensity was 172.6 kBtu/ft² (257.7 kBtu/ft² source) across 119,575 sq ft, including 1,316,798 kWh of electricity and 14,417 therms of natural gas.
What are 45 Quincy St's carbon emissions?
45 Quincy St reported 1,348 tCO₂e of greenhouse-gas emissions for 2024.
Where is 45 Quincy St?
45 Quincy St is in Cambridge, Massachusetts. Its coordinates are 42.37600, -71.11510 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 45 Quincy St and when was it built?
45 Quincy St has 119,575 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1878 as its year built. It is classed as college/university.
Is 45 Quincy 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, “45 Quincy St, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/45-quincy-st-beaec113 (data as of October 2, 2026).