At a glance
288 Norfolk St is a 30,930-square-foot office building in Cambridge, Massachusetts, built in 1920. In its 2024 Cambridge benchmarking disclosure it reported a site energy-use intensity of 49.1 kBtu/ft² and 102 tCO₂e of greenhouse-gas emissions.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 49.1 kBtu/ft² |
| Source EUI | 116.2 kBtu/ft² |
| GHG emissions | 102 tCO₂e |
| GHG intensity | — |
| Electricity | 335,068 kWh |
| Natural gas | 3,749 therms |
| Water use | 252 kgal |
| Gross floor area | 30,930 sq ft |
| Source record | cambridge:B1579:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 49.1 kBtu/ft² | 102 tCO₂e | |
| 2023 | — | 45.0 kBtu/ft² | 94 tCO₂e | |
| 2022 | — | 49.3 kBtu/ft² | 101 tCO₂e | |
| 2021 | — | 40.0 kBtu/ft² | 80 tCO₂e | |
| 2020 | — | 31.0 kBtu/ft² | 61 tCO₂e | |
| 2019 | — | 23.0 kBtu/ft² | 46 tCO₂e | |
| 2018 | — | 28.4 kBtu/ft² | 56 tCO₂e | |
| 2017 | — | — | 51 tCO₂e | |
| 2016 | — | — | 45 tCO₂e | |
| 2015 | — | — | 49 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
NORSHIRE LLC,
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Location
- Address
- 288 Norfolk St
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.37120, -71.09710
Within ~1 km
Nearby benchmarked buildings
- 555 Technology Squarescore —
Laboratory · 457,000 sq ft
- One Hampshire Stscore 5
Office · 361,302 sq ft
- 1493 Cambridge Streetscore 33
Hospital (General Medical & Surgical) · 360,250 sq ft
- 360 Binney Stscore —
Laboratory · 349,767 sq ft
- 850 Cambridge Stscore —
K-12 School · 276,000 sq ft
- 131 Washington Streetscore 68
Multifamily Housing · 275,666 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 288 Norfolk St 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 49.1 kBtu/ft² is about 38% below the average of 78.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 30,930 sq ft, it is about 74% below the average floor area of 121,167 sq ft for those buildings. It was built in 1920, 45 years earlier 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 288 Norfolk St's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 288 Norfolk St, covering report years 2015–2024. Site EUI moved from 28.4 kBtu/ft² (2018) to 49.1 kBtu/ft² (2024), an 73% increase. Reported emissions went from 49 tCO₂e to 102 tCO₂e over the same span (up 111%).
What does a site EUI of 49.1 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. 288 Norfolk St's 49.1 kBtu/ft² across 30,930 sq ft works out to about 1.5 billion Btu (445 MWh-equivalent) in 2024. Its source EUI of 116.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 335,068 kWh of electricity, 3,749 therms of natural gas and 252 thousand gallons of water for the year.
Which law requires 288 Norfolk St to report its energy use?
288 Norfolk 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:B1579:2024). 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
- Two Brattle Square· 30,674 sq ft · score 89 (A)
- 21 Dunster Street· 30,384 sq ft · EUI 142.6 kBtu/ft²
- 14 Story Street· 28,056 sq ft · score 87 (A)
- 1 Mifflin Place· 27,447 sq ft · EUI 70.8 kBtu/ft²
- 79-81 Garden St· 27,148 sq ft · score 83 (B)
- 950 Cambridge Street· 26,729 sq ft
- 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 288 Norfolk St's energy grade?
288 Norfolk St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 49.1 kBtu/ft².
How much energy does 288 Norfolk St use?
Its 2024 site energy-use intensity was 49.1 kBtu/ft² (116.2 kBtu/ft² source) across 30,930 sq ft, including 335,068 kWh of electricity and 3,749 therms of natural gas.
What are 288 Norfolk St's carbon emissions?
288 Norfolk St reported 102 tCO₂e of greenhouse-gas emissions for 2024.
Where is 288 Norfolk St?
288 Norfolk St is in Cambridge, Massachusetts. Its coordinates are 42.37120, -71.09710 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 288 Norfolk St and when was it built?
288 Norfolk St has 30,930 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1920 as its year built. It is classed as office.
Is 288 Norfolk 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, “288 Norfolk St, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/288-norfolk-st-abe0fee6 (data as of October 2, 2026).