675 Concord Avenue
Multifamily Housing in Cambridge, MA
At a glance
675 Concord Avenue is a 109,781-square-foot multifamily housing building in Cambridge, Massachusetts, built in 2020. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 23.0 kBtu/ft² and 136 tCO₂e of greenhouse-gas emissions. That score is higher than 85% of the 155 scored multifamily housing buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 23.0 kBtu/ft² |
| Source EUI | 39.1 kBtu/ft² |
| GHG emissions | 136 tCO₂e |
| GHG intensity | — |
| Electricity | 277,059 kWh |
| Natural gas | 12,742 therms |
| Water use | 3,168 kgal |
| Gross floor area | 109,781 sq ft |
| Source record | cambridge:B1059:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 23.0 kBtu/ft² | 136 tCO₂e |
| 2023 | 100 | ±0 | 23.7 kBtu/ft² | 135 tCO₂e |
| 2022 | 100 | ±0 | 24.7 kBtu/ft² | 139 tCO₂e |
| 2021 | 100 | 14.3 kBtu/ft² | 165 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
HRI CONCORD HIGHLANDS LLC.
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Location
- Address
- 675 Concord Avenue
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.39040, -71.14990
Within ~1 km
Nearby benchmarked buildings
- 130 Cambridge Park Dr,score 100
Multifamily Housing · 546,321 sq ft
- 55 Wheeler Stscore 100
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- 160 Cambridge Park Drscore 100
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- 80 Fawcett Streetscore 87
Multifamily Housing · 374,241 sq ft
- 30 Cambridge Park Drivescore 99
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- 50 Cambridgepark Drscore 100
Multifamily Housing · 344,122 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 675 Concord Avenue compare with other multifamily housing buildings in Cambridge?
The latest disclosures cover 187 multifamily housing buildings in Cambridge, out of 902 buildings citywide. 675 Concord Avenue's ENERGY STAR score of 100 compares with an average of 75 across the 155 that report a score; it scores higher than 85% of them. Its site EUI of 23.0 kBtu/ft² is about 60% below the average of 56.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 109,781 sq ft, it is about 17% below the average floor area of 132,415 sq ft for those buildings. It was built in 2020, 47 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 675 Concord Avenue's energy performance changed over time?
BuildingCensus holds 4 Cambridge disclosures for 675 Concord Avenue, covering report years 2021–2024. Its ENERGY STAR score was 100 in both 2021 and 2024. Site EUI moved from 14.3 kBtu/ft² (2021) to 23.0 kBtu/ft² (2024), an 61% increase. Reported emissions went from 165 tCO₂e to 136 tCO₂e over the same span (down 18%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. 675 Concord Avenue's 23.0 kBtu/ft² across 109,781 sq ft works out to about 2.5 billion Btu (740 MWh-equivalent) in 2024. Its source EUI of 39.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 277,059 kWh of electricity, 12,742 therms of natural gas and 3,168 thousand gallons of water for the year.
Which law requires 675 Concord Avenue to report its energy use?
675 Concord Avenue 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:B1059:2024). 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
- 989 Memorial Drive· 109,285 sq ft · score 92 (A)
- 872 Massachusetts Avenue· 108,104 sq ft · score 83 (B)
- 3 Arlington Street· 107,675 sq ft · score 81 (B)
- 44A Lincoln Way· 105,728 sq ft · score 72 (B)
- 50 Rogers St· 105,566 sq ft · score 30 (D)
- 24-26 Concord Avenue· 104,598 sq ft
- 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 675 Concord Avenue's energy grade?
675 Concord Avenue scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 Cambridge disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 675 Concord Avenue use?
Its 2024 site energy-use intensity was 23.0 kBtu/ft² (39.1 kBtu/ft² source) across 109,781 sq ft, including 277,059 kWh of electricity and 12,742 therms of natural gas.
What are 675 Concord Avenue's carbon emissions?
675 Concord Avenue reported 136 tCO₂e of greenhouse-gas emissions for 2024.
Where is 675 Concord Avenue?
675 Concord Avenue is in Cambridge, Massachusetts. Its coordinates are 42.39040, -71.14990 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 675 Concord Avenue and when was it built?
675 Concord Avenue has 109,781 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2020 as its year built. It is classed as multifamily housing.
Is 675 Concord Avenue 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, “675 Concord Avenue, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/675-concord-avenue-61faf231 (data as of October 2, 2026).