At a glance
50 Hampshire Street is a 202,023-square-foot office building in Cambridge, Massachusetts, built in 1999. In its 2024 Cambridge benchmarking disclosure it reported a site energy-use intensity of 93.8 kBtu/ft² and 1,195 tCO₂e of greenhouse-gas emissions.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 93.8 kBtu/ft² |
| Source EUI | 184.0 kBtu/ft² |
| GHG emissions | 1,195 tCO₂e |
| GHG intensity | — |
| Electricity | 2,892,240 kWh |
| Natural gas | 90,816 therms |
| Water use | 1,260 kgal |
| Gross floor area | 202,023 sq ft |
| Source record | cambridge:B1583:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 93.8 kBtu/ft² | 1,195 tCO₂e | |
| 2023 | — | 96.8 kBtu/ft² | 1,248 tCO₂e | |
| 2022 | — | 105.9 kBtu/ft² | 1,379 tCO₂e | |
| 2021 | — | 101.4 kBtu/ft² | 1,334 tCO₂e | |
| 2020 | — | 108.6 kBtu/ft² | 1,396 tCO₂e | |
| 2019 | — | 127.1 kBtu/ft² | 1,548 tCO₂e | |
| 2018 | — | 131.2 kBtu/ft² | 1,665 tCO₂e | |
| 2017 | — | 84.3 kBtu/ft² | 1,198 tCO₂e | |
| 2016 | — | 60.4 kBtu/ft² | 806 tCO₂e | |
| 2015 | — | 54.7 kBtu/ft² | 688 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
BMR-HAMPSHIRE LLC,
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Location
- Address
- 50 Hampshire Street
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.36660, -71.09290
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 Hampshire Street compare with other office buildings in Cambridge?
The latest disclosures cover 117 office buildings in Cambridge, out of 902 buildings citywide. Its site EUI of 93.8 kBtu/ft² is about 19% above the average of 78.7 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 202,023 sq ft, it is about 67% above the average floor area of 121,167 sq ft for those buildings. It was built in 1999, 34 years later than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 50 Hampshire Street's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 50 Hampshire Street, covering report years 2015–2024. Site EUI moved from 54.7 kBtu/ft² (2015) to 93.8 kBtu/ft² (2024), an 71% increase. Reported emissions went from 688 tCO₂e to 1,195 tCO₂e over the same span (up 74%).
What does a site EUI of 93.8 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 Hampshire Street's 93.8 kBtu/ft² across 202,023 sq ft works out to about 18.9 billion Btu (5,554 MWh-equivalent) in 2024. Its source EUI of 184.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,892,240 kWh of electricity, 90,816 therms of natural gas and 1,260 thousand gallons of water for the year.
Which law requires 50 Hampshire Street to report its energy use?
50 Hampshire 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:B1583:2024). 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 office buildings in Cambridge
- 60 Acorn Park Drive· 201,500 sq ft · score 82 (B)
- 124 Mount Auburn Street· 196,007 sq ft · score 70 (B)
- 10, 12, 20-22-24, 36, 50, 60, 62, 64 Moulton Street· 193,217 sq ft · score 4 (D)
- 150 Broadway· 187,875 sq ft · score 66 (C)
- 105 Broadway (10 Cambridge Center)· 185,196 sq ft · score 87 (A)
- 150 2nd ST· 153,336 sq ft · EUI 261.5 kBtu/ft²
- Office buildings in Cambridge· 117 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 Hampshire Street's energy grade?
50 Hampshire Street did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 93.8 kBtu/ft².
How much energy does 50 Hampshire Street use?
Its 2024 site energy-use intensity was 93.8 kBtu/ft² (184.0 kBtu/ft² source) across 202,023 sq ft, including 2,892,240 kWh of electricity and 90,816 therms of natural gas.
What are 50 Hampshire Street's carbon emissions?
50 Hampshire Street reported 1,195 tCO₂e of greenhouse-gas emissions for 2024.
Where is 50 Hampshire Street?
50 Hampshire Street is in Cambridge, Massachusetts. Its coordinates are 42.36660, -71.09290 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 50 Hampshire Street and when was it built?
50 Hampshire Street has 202,023 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1999 as its year built. It is classed as office.
Is 50 Hampshire 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, “50 Hampshire Street, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/50-hampshire-street-6c27f2a8 (data as of October 2, 2026).