151 North First Street
Multifamily Housing in Cambridge, MA
At a glance
151 North First Street is a 434,093-square-foot multifamily housing building in Cambridge, Massachusetts, built in 2022. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 63 out of 100 (grade C), a site energy-use intensity of 52.5 kBtu/ft² and 1,554 tCO₂e of greenhouse-gas emissions. That score is higher than 26% of the 155 scored multifamily housing buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 63 (band C) |
| Site EUI | 52.5 kBtu/ft² |
| Source EUI | 127.6 kBtu/ft² |
| GHG emissions | 1,554 tCO₂e |
| GHG intensity | — |
| Electricity | 5,265,253 kWh |
| Natural gas | 48,265 therms |
| Water use | 10,547 kgal |
| Gross floor area | 434,093 sq ft |
| Source record | cambridge:B1835:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 63 | -2 | 52.5 kBtu/ft² | 1,554 tCO₂e |
| 2023 | 65 | 55.7 kBtu/ft² | 1,598 tCO₂e | |
| 2022 | — | — | 0 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
DW PROPCO I LLC
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Location
- Address
- 151 North First Street
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.37270, -71.07580
Within ~1 km
Nearby benchmarked buildings
- 100 Cambridge Side Placescore —
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- 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
- 20 Child Streetscore 100
Multifamily Housing · 485,197 sq ft
- 222 Jacobs Streetscore —
Laboratory · 466,713 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 151 North First Street compare with other multifamily housing buildings in Cambridge?
The latest disclosures cover 187 multifamily housing buildings in Cambridge, out of 902 buildings citywide. 151 North First Street's ENERGY STAR score of 63 compares with an average of 75 across the 155 that report a score; it scores higher than 26% of them and lower than 73%. Its site EUI of 52.5 kBtu/ft² is roughly in line with the average of 56.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 434,093 sq ft, it is about 228% above the average floor area of 132,415 sq ft for those buildings. It was built in 2022, 49 years later than the group's average year built (1973). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has 151 North First Street's energy performance changed over time?
BuildingCensus holds 3 Cambridge disclosures for 151 North First Street, covering report years 2022–2024. Its ENERGY STAR score went from 65 in 2023 to 63 in 2024 (-2 points); its best year on file was 2023, at 65. Site EUI moved from 55.7 kBtu/ft² (2023) to 52.5 kBtu/ft² (2024), a 6% decrease.
What does an ENERGY STAR score of 63 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 63 means the building performs better than about 63% of its national peers. BuildingCensus bands the score into report-card grades; 63 falls in band C — below median (55–69). It sits 12 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. 151 North First Street's 52.5 kBtu/ft² across 434,093 sq ft works out to about 22.8 billion Btu (6,679 MWh-equivalent) in 2024. Its source EUI of 127.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 5,265,253 kWh of electricity, 48,265 therms of natural gas and 10,547 thousand gallons of water for the year.
Which law requires 151 North First Street to report its energy use?
151 North First 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:B1835:2024). 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 multifamily housing buildings in Cambridge
- 285 Third St· 424,525 sq ft · score 78 (B)
- 165 Main St· 406,046 sq ft · score 78 (B)
- 22 Water St· 402,277 sq ft · score 96 (A)
- 22 Water St· 402,277 sq ft · score 96 (A)
- 75 Cambridge Parkway· 400,000 sq ft · score 61 (C)
- 10 Rogers Street· 398,652 sq ft · score 100 (A)
- Multifamily Housing buildings in Cambridge· 187 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 151 North First Street's energy grade?
151 North First Street scores 63 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 Cambridge disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 151 North First Street use?
Its 2024 site energy-use intensity was 52.5 kBtu/ft² (127.6 kBtu/ft² source) across 434,093 sq ft, including 5,265,253 kWh of electricity and 48,265 therms of natural gas.
What are 151 North First Street's carbon emissions?
151 North First Street reported 1,554 tCO₂e of greenhouse-gas emissions for 2024.
Where is 151 North First Street?
151 North First Street is in Cambridge, Massachusetts. Its coordinates are 42.37270, -71.07580 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 151 North First Street and when was it built?
151 North First Street has 434,093 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2022 as its year built. It is classed as multifamily housing.
Is 151 North First 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, “151 North First Street, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/151-north-first-street-75983bd7 (data as of October 2, 2026).