55 Franklin St
Parking in Cambridge, MA
At a glance
55 Franklin St is a 240,000-square-foot parking building in Cambridge, Massachusetts, built in 1997. In its 2024 Cambridge benchmarking disclosure it reported a site energy-use intensity of 9.0 kBtu/ft² and 157 tCO₂e of greenhouse-gas emissions.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 9.0 kBtu/ft² |
| Source EUI | 25.3 kBtu/ft² |
| GHG emissions | 157 tCO₂e |
| GHG intensity | — |
| Electricity | 635,744 kWh |
| Water use | 102 kgal |
| Gross floor area | 240,000 sq ft |
| Source record | cambridge:B1764:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 9.0 kBtu/ft² | 157 tCO₂e | |
| 2023 | — | 2.7 kBtu/ft² | 46 tCO₂e | |
| 2022 | — | 9.1 kBtu/ft² | 156 tCO₂e | |
| 2021 | — | 8.9 kBtu/ft² | 154 tCO₂e | |
| 2020 | — | 12.0 kBtu/ft² | 203 tCO₂e | |
| 2019 | — | 12.4 kBtu/ft² | 195 tCO₂e | |
| 2018 | — | 12.6 kBtu/ft² | 212 tCO₂e | |
| 2017 | — | 12.2 kBtu/ft² | 219 tCO₂e | |
| 2016 | — | 12.0 kBtu/ft² | 215 tCO₂e | |
| 2015 | 23 | 97.0 kBtu/ft² | 1,507 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
- 55 Franklin St
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.36150, -71.09930
Within ~1 km
Nearby benchmarked buildings
- 250 Massachusetts Avenuescore —
Laboratory · 1,362,662 sq ft
- 250 Massachusetts Avenuescore —
Laboratory · 517,029 sq ft
- 43 VASSAR STscore —
College/University · 418,663 sq ft
- 70 PACIFIC STscore —
College/University · 362,687 sq ft
- 575 Memorial Drivescore 37
Hotel · 347,000 sq ft
- 610 Main Streetscore —
Laboratory · 278,738 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 55 Franklin St compare with other parking buildings in Cambridge?
The latest disclosures cover 12 parking buildings in Cambridge, out of 902 buildings citywide. Its site EUI of 9.0 kBtu/ft² is about 89% below the average of 81.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 240,000 sq ft, it is about 27% above the average floor area of 188,340 sq ft for those buildings. It was built in 1997, 9 years later than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 1,071 parking buildings average an ENERGY STAR score of 67 and a site EUI of 40.3 kBtu/ft².
How has 55 Franklin St's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 55 Franklin St, covering report years 2015–2024. Site EUI moved from 97.0 kBtu/ft² (2015) to 9.0 kBtu/ft² (2024), a 91% decrease. Reported emissions went from 1,507 tCO₂e to 157 tCO₂e over the same span (down 90%).
What does a site EUI of 9.0 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. 55 Franklin St's 9.0 kBtu/ft² across 240,000 sq ft works out to about 2.2 billion Btu (633 MWh-equivalent) in 2024. Its source EUI of 25.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 635,744 kWh of electricity and 102 thousand gallons of water for the year.
Which law requires 55 Franklin St to report its energy use?
55 Franklin 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:B1764:2024). 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 parking buildings in Cambridge
- 555 Technology Square· 230,000 sq ft · EUI 1.4 kBtu/ft²
- 10 Everett Street· 223,000 sq ft · EUI 7.2 kBtu/ft²
- 5 Felton Street· 143,425 sq ft · EUI 4.3 kBtu/ft²
- 260 Green Street· 110,884 sq ft · EUI 2.8 kBtu/ft²
- 125 Putnam Avenue· 107,272 sq ft · EUI 3.5 kBtu/ft²
- 5 Cowperthwaite Street· 98,623 sq ft · EUI 8.1 kBtu/ft²
- 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 55 Franklin St's energy grade?
55 Franklin St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 9.0 kBtu/ft².
How much energy does 55 Franklin St use?
Its 2024 site energy-use intensity was 9.0 kBtu/ft² (25.3 kBtu/ft² source) across 240,000 sq ft, including 635,744 kWh of electricity.
What are 55 Franklin St's carbon emissions?
55 Franklin St reported 157 tCO₂e of greenhouse-gas emissions for 2024.
Where is 55 Franklin St?
55 Franklin St is in Cambridge, Massachusetts. Its coordinates are 42.36150, -71.09930 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 55 Franklin St and when was it built?
55 Franklin St has 240,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1997 as its year built. It is classed as parking.
Is 55 Franklin 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, “55 Franklin St, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/55-franklin-st-60e34bed (data as of October 2, 2026).