650 CONCORD AVE
Senior Living Community in Cambridge, MA
At a glance
650 CONCORD AVE is a 81,000-square-foot senior living community building in Cambridge, Massachusetts, built in 1928. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 4 out of 100 (grade D), a site energy-use intensity of 215.7 kBtu/ft² and 928 tCO₂e of greenhouse-gas emissions. That score is higher than 2% of the 374 scored buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 4 (band D) |
| Site EUI | 215.7 kBtu/ft² |
| Source EUI | 226.7 kBtu/ft² |
| GHG emissions | 928 tCO₂e |
| GHG intensity | — |
| Electricity | 3,180 kWh |
| Natural gas | 174,629 therms |
| Water use | 44 kgal |
| Gross floor area | 81,000 sq ft |
| Source record | cambridge:B1679:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 4 | -96 | 215.7 kBtu/ft² | 928 tCO₂e |
| 2023 | 100 | ±0 | 20.9 kBtu/ft² | 90 tCO₂e |
| 2022 | 100 | 35.9 kBtu/ft² | 155 tCO₂e | |
| 2021 | — | — | 0 tCO₂e | |
| 2020 | — | — | 0 tCO₂e | |
| 2019 | — | — | 0 tCO₂e | |
| 2018 | — | — | 0 tCO₂e | |
| 2017 | — | — | 0 tCO₂e | |
| 2016 | — | — | 0 tCO₂e | |
| 2015 | — | — | 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
CITY OF CAMBRIDGE
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Location
- Address
- 650 CONCORD AVE
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.38850, -71.14870
Within ~1 km
Nearby benchmarked buildings
- 130 Cambridge Park Dr,score 100
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- 55 Wheeler Stscore 100
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- 160 Cambridge Park Drscore 100
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- 80 Fawcett Streetscore 87
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- 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 650 CONCORD AVE compare with other buildings in Cambridge?
The latest disclosures cover 902 benchmarked buildings in Cambridge. 650 CONCORD AVE's ENERGY STAR score of 4 compares with an average of 66 across the 374 that report a score. Its site EUI of 215.7 kBtu/ft² is about 84% above the average of 117.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 81,000 sq ft, it is about 29% below the average floor area of 114,869 sq ft for those buildings. It was built in 1928, 34 years earlier than the group's average year built (1962). Across all 24 jurisdictions BuildingCensus covers, the 1,181 senior living community buildings average an ENERGY STAR score of 71 and a site EUI of 73.6 kBtu/ft².
How has 650 CONCORD AVE's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 650 CONCORD AVE, covering report years 2015–2024. Its ENERGY STAR score went from 100 in 2022 to 4 in 2024 (-96 points); its best year on file was 2022, at 100. Site EUI moved from 35.9 kBtu/ft² (2022) to 215.7 kBtu/ft² (2024), an 501% increase.
What does an ENERGY STAR score of 4 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 4 means the building performs better than about 4% of its national peers. BuildingCensus bands the score into report-card grades; 4 falls in band D — lowest band (1–54). It sits 71 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. 650 CONCORD AVE's 215.7 kBtu/ft² across 81,000 sq ft works out to about 17.5 billion Btu (5,120 MWh-equivalent) in 2024. Its source EUI of 226.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 3,180 kWh of electricity, 174,629 therms of natural gas and 44 thousand gallons of water for the year.
Which law requires 650 CONCORD AVE to report its energy use?
650 CONCORD AVE 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:B1679:2024). 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 senior living community buildings in Cambridge
Frequently asked questions
What is 650 CONCORD AVE's energy grade?
650 CONCORD AVE scores 4 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 650 CONCORD AVE use?
Its 2024 site energy-use intensity was 215.7 kBtu/ft² (226.7 kBtu/ft² source) across 81,000 sq ft, including 3,180 kWh of electricity and 174,629 therms of natural gas.
What are 650 CONCORD AVE's carbon emissions?
650 CONCORD AVE reported 928 tCO₂e of greenhouse-gas emissions for 2024.
Where is 650 CONCORD AVE?
650 CONCORD AVE is in Cambridge, Massachusetts. Its coordinates are 42.38850, -71.14870 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 650 CONCORD AVE and when was it built?
650 CONCORD AVE has 81,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1928 as its year built. It is classed as senior living community.
Is 650 CONCORD AVE 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, “650 CONCORD AVE, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/650-concord-ave-06850c36 (data as of October 2, 2026).