50 VASSAR ST
College/University in Cambridge, MA
At a glance
50 VASSAR ST is a 84,329-square-foot college/university building in Cambridge, Massachusetts, built in 1973. In its 2024 Cambridge benchmarking disclosure it reported a site energy-use intensity of 423.9 kBtu/ft² and 2,325 tCO₂e of greenhouse-gas emissions.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 423.9 kBtu/ft² |
| Source EUI | 666.3 kBtu/ft² |
| GHG emissions | 2,325 tCO₂e |
| GHG intensity | — |
| Electricity | 3,082,548 kWh |
| Water use | 711 kgal |
| Gross floor area | 84,329 sq ft |
| Source record | cambridge:B1488:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 423.9 kBtu/ft² | 2,325 tCO₂e | |
| 2023 | — | 391.7 kBtu/ft² | 2,148 tCO₂e | |
| 2022 | — | 423.7 kBtu/ft² | 2,310 tCO₂e | |
| 2021 | — | 375.8 kBtu/ft² | 2,033 tCO₂e | |
| 2020 | — | — | 1,499 tCO₂e | |
| 2019 | — | — | 1,245 tCO₂e | |
| 2018 | — | 259.8 kBtu/ft² | 1,349 tCO₂e | |
| 2017 | — | 236.7 kBtu/ft² | 1,257 tCO₂e | |
| 2016 | — | 238.6 kBtu/ft² | 1,250 tCO₂e | |
| 2015 | — | 247.3 kBtu/ft² | 1,318 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
- 50 VASSAR ST
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.36110, -71.09230
Within ~1 km
Nearby benchmarked buildings
- 250 Massachusetts Avenuescore —
Laboratory · 1,362,662 sq ft
- 250 Massachusetts Avenuescore —
Laboratory · 517,029 sq ft
- 325 Main Stscore 87
Office · 494,512 sq ft
- 145 Broadwayscore 91
Office · 490,000 sq ft
- 314 Main St.score 80
Office · 482,220 sq ft
- 303 Binney Stscore —
Laboratory · 480,000 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 50 VASSAR 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 423.9 kBtu/ft² is about 175% above the average of 154.3 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 84,329 sq ft, it is about 13% below the average floor area of 96,964 sq ft for those buildings. It was built in 1973, 24 years later 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 50 VASSAR ST's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 50 VASSAR ST, covering report years 2015–2024. Site EUI moved from 247.3 kBtu/ft² (2015) to 423.9 kBtu/ft² (2024), an 71% increase. Reported emissions went from 1,318 tCO₂e to 2,325 tCO₂e over the same span (up 76%).
What does a site EUI of 423.9 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. 50 VASSAR ST's 423.9 kBtu/ft² across 84,329 sq ft works out to about 35.7 billion Btu (10,476 MWh-equivalent) in 2024. Its source EUI of 666.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 3,082,548 kWh of electricity and 711 thousand gallons of water for the year.
Which law requires 50 VASSAR ST to report its energy use?
50 VASSAR 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:B1488:2024). 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
- 40 AMES ST· 83,518 sq ft · EUI 288.7 kBtu/ft²
- 9 Oxford Street· 82,691 sq ft · EUI 305.1 kBtu/ft²
- 600 MEMORIAL DR· 82,481 sq ft · EUI 70.0 kBtu/ft²
- 60 Garden St· 80,995 sq ft · EUI 120.5 kBtu/ft²
- 55 MASSACHUSETTS AVE· 80,942 sq ft · EUI 160.5 kBtu/ft²
- 1801 Massachusetts Ave· 79,295 sq ft · EUI 187.8 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 50 VASSAR ST's energy grade?
50 VASSAR ST did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 423.9 kBtu/ft².
How much energy does 50 VASSAR ST use?
Its 2024 site energy-use intensity was 423.9 kBtu/ft² (666.3 kBtu/ft² source) across 84,329 sq ft, including 3,082,548 kWh of electricity.
What are 50 VASSAR ST's carbon emissions?
50 VASSAR ST reported 2,325 tCO₂e of greenhouse-gas emissions for 2024.
Where is 50 VASSAR ST?
50 VASSAR ST is in Cambridge, Massachusetts. Its coordinates are 42.36110, -71.09230 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 50 VASSAR ST and when was it built?
50 VASSAR ST has 84,329 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1973 as its year built. It is classed as college/university.
Is 50 VASSAR 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, “50 VASSAR ST, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/50-vassar-st-c80979af (data as of October 2, 2026).