215 1st ST
Mixed Use Property in Cambridge, MA
At a glance
215 1st ST is a 366,723-square-foot mixed use property building in Cambridge, Massachusetts, built in 1950. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 15 out of 100 (grade D), a site energy-use intensity of 141.7 kBtu/ft² and 3,380 tCO₂e of greenhouse-gas emissions. That score is higher than 80% of the 5 scored mixed use property buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 15 (band D) |
| Site EUI | 141.7 kBtu/ft² |
| Source EUI | 304.0 kBtu/ft² |
| GHG emissions | 3,380 tCO₂e |
| GHG intensity | — |
| Electricity | 9,534,737 kWh |
| Natural gas | 194,180 therms |
| Water use | 1,839 kgal |
| Gross floor area | 366,723 sq ft |
| Source record | cambridge:B1077:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 15 | +2 | 141.7 kBtu/ft² | 3,380 tCO₂e |
| 2023 | 13 | -2 | 147.4 kBtu/ft² | 3,515 tCO₂e |
| 2022 | 15 | +1 | 143.9 kBtu/ft² | 3,415 tCO₂e |
| 2021 | 14 | ±0 | 147.1 kBtu/ft² | 3,511 tCO₂e |
| 2020 | 14 | +3 | 145.0 kBtu/ft² | 3,418 tCO₂e |
| 2019 | 11 | -1 | 159.2 kBtu/ft² | 3,541 tCO₂e |
| 2018 | 12 | +2 | 153.0 kBtu/ft² | 3,595 tCO₂e |
| 2017 | 10 | +1 | 156.9 kBtu/ft² | 3,857 tCO₂e |
| 2016 | 9 | -4 | 159.1 kBtu/ft² | 3,953 tCO₂e |
| 2015 | 13 | 151.8 kBtu/ft² | 3,759 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
ARE-MA REGION NO. 38 LLC,
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 215 1st ST
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.36430, -71.07930
Within ~1 km
Nearby benchmarked buildings
- 100 Cambridge Side Placescore —
Enclosed Mall · 747,697 sq ft
- One Leighton Streetscore 21
Multifamily Housing · 612,952 sq ft
- 50-60 Binney STscore —
Mixed Use Property · 532,739 sq ft
- 8-12 Museum Wayscore 88
Multifamily Housing · 525,000 sq ft
- 325 Main Stscore 87
Office · 494,512 sq ft
- 20 Child Streetscore 100
Multifamily Housing · 485,197 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 215 1st ST compare with other mixed use property buildings in Cambridge?
The latest disclosures cover 22 mixed use property buildings in Cambridge, out of 902 buildings citywide. 215 1st ST's ENERGY STAR score of 15 compares with an average of 6 across the 5 that report a score; it scores higher than 80% of them. Its site EUI of 141.7 kBtu/ft² is about 12% below the average of 160.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 366,723 sq ft, it is about 202% above the average floor area of 121,587 sq ft for those buildings. It was built in 1950, 20 years earlier than the group's average year built (1970). Across all 24 jurisdictions BuildingCensus covers, the 1,212 mixed use property buildings average an ENERGY STAR score of 69 and a site EUI of 79.8 kBtu/ft².
How has 215 1st ST's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 215 1st ST, covering report years 2015–2024. Its ENERGY STAR score went from 13 in 2015 to 15 in 2024 (+2 points); its best year on file was 2022, at 15. Site EUI moved from 151.8 kBtu/ft² (2015) to 141.7 kBtu/ft² (2024), a 7% decrease. Reported emissions went from 3,759 tCO₂e to 3,380 tCO₂e over the same span (down 10%).
What does an ENERGY STAR score of 15 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 15 means the building performs better than about 15% of its national peers. BuildingCensus bands the score into report-card grades; 15 falls in band D — lowest band (1–54). It sits 60 points below 75, the threshold for ENERGY STAR certification. In Cambridge, 50% of scored buildings are at 75 or above.
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. 215 1st ST's 141.7 kBtu/ft² across 366,723 sq ft works out to about 52 billion Btu (15,229 MWh-equivalent) in 2024. Its source EUI of 304.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 9,534,737 kWh of electricity, 194,180 therms of natural gas and 1,839 thousand gallons of water for the year.
Which law requires 215 1st ST to report its energy use?
215 1st 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:B1077:2024). 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 mixed use property buildings in Cambridge
- 100 Technology Square· 255,441 sq ft · score 1 (D)
- One Kendall Square· 246,793 sq ft · EUI 186.5 kBtu/ft²
- 200 Technology Square· 177,161 sq ft · EUI 417.2 kBtu/ft²
- 300 Technology Square· 175,609 sq ft · score 1 (D)
- One Kendall Square· 140,058 sq ft · score 10 (D)
- 300 3 Rd ST· 131,639 sq ft · EUI 255.9 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 215 1st ST's energy grade?
215 1st ST scores 15 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 Cambridge disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 215 1st ST use?
Its 2024 site energy-use intensity was 141.7 kBtu/ft² (304.0 kBtu/ft² source) across 366,723 sq ft, including 9,534,737 kWh of electricity and 194,180 therms of natural gas.
What are 215 1st ST's carbon emissions?
215 1st ST reported 3,380 tCO₂e of greenhouse-gas emissions for 2024.
Where is 215 1st ST?
215 1st ST is in Cambridge, Massachusetts. Its coordinates are 42.36430, -71.07930 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 215 1st ST and when was it built?
215 1st ST has 366,723 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1950 as its year built. It is classed as mixed use property.
Is 215 1st 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, “215 1st ST, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/215-1st-st-0db9c272 (data as of October 2, 2026).