9-15 Chester Street
Multifamily Housing in Cambridge, MA
At a glance
9-15 Chester Street is a 26,712-square-foot multifamily housing building in Cambridge, Massachusetts, built in 1965. 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 56.0 kBtu/ft² and 84 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 | 56.0 kBtu/ft² |
| Source EUI | 73.0 kBtu/ft² |
| GHG emissions | 84 tCO₂e |
| GHG intensity | — |
| Electricity | 63,556 kWh |
| Natural gas | 12,788 therms |
| Gross floor area | 26,712 sq ft |
| Source record | cambridge:B1008:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | +5 | 56.0 kBtu/ft² | 84 tCO₂e |
| 2023 | 95 | -2 | 64.0 kBtu/ft² | 98 tCO₂e |
| 2022 | 97 | +1 | 61.4 kBtu/ft² | 94 tCO₂e |
| 2021 | 96 | +2 | 64.6 kBtu/ft² | 99 tCO₂e |
| 2020 | 94 | -1 | 67.4 kBtu/ft² | 103 tCO₂e |
| 2019 | 95 | ±0 | 69.7 kBtu/ft² | 104 tCO₂e |
| 2018 | 95 | -1 | 68.5 kBtu/ft² | 104 tCO₂e |
| 2017 | 96 | -1 | 65.4 kBtu/ft² | 101 tCO₂e |
| 2016 | 97 | ±0 | 61.0 kBtu/ft² | 95 tCO₂e |
| 2015 | 97 | 63.1 kBtu/ft² | 99 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
NOSTALGIA PROPERTIES, LLC,
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 9-15 Chester Street
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.39380, -71.12480
Within ~1 km
Nearby benchmarked buildings
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- 1815 MASSACHUSETTS AVEscore —
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- 205-225 Walden St.score 89
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- 1-53 White Streetscore —
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- 1-55 White Streetscore —
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See also: most efficient in Cambridge · biggest emitters
How does 9-15 Chester Street compare with other multifamily housing buildings in Cambridge?
The latest disclosures cover 187 multifamily housing buildings in Cambridge, out of 902 buildings citywide. 9-15 Chester Street'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 56.0 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 26,712 sq ft, it is about 80% below the average floor area of 132,415 sq ft for those buildings. It was built in 1965, 8 years earlier 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 9-15 Chester Street's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 9-15 Chester Street, covering report years 2015–2024. Its ENERGY STAR score went from 97 in 2015 to 100 in 2024 (+3 points). Site EUI moved from 63.1 kBtu/ft² (2015) to 56.0 kBtu/ft² (2024), a 11% decrease. Reported emissions went from 99 tCO₂e to 84 tCO₂e over the same span (down 15%).
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. 9-15 Chester Street's 56.0 kBtu/ft² across 26,712 sq ft works out to about 1.5 billion Btu (438 MWh-equivalent) in 2024. Its source EUI of 73.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 63,556 kWh of electricity and 12,788 therms of natural gas for the year.
Which law requires 9-15 Chester Street to report its energy use?
9-15 Chester 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:B1008:2024). 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
- 1066 Cambridge Street· 26,142 sq ft · EUI 39.8 kBtu/ft²
- 80 Auburn St· 21,327 sq ft · score 30 (D)
- 70 Brookline St· 19,156 sq ft · EUI 57.8 kBtu/ft²
- 1622 Massachusetts Avenue· 15,830 sq ft · EUI 56.3 kBtu/ft²
- 1616 Massachusetts Avenue· 15,830 sq ft · EUI 56.1 kBtu/ft²
- 1610 Massachusetts Avenue· 15,830 sq ft · EUI 57.3 kBtu/ft²
- 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 9-15 Chester Street's energy grade?
9-15 Chester Street 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 9-15 Chester Street use?
Its 2024 site energy-use intensity was 56.0 kBtu/ft² (73.0 kBtu/ft² source) across 26,712 sq ft, including 63,556 kWh of electricity and 12,788 therms of natural gas.
What are 9-15 Chester Street's carbon emissions?
9-15 Chester Street reported 84 tCO₂e of greenhouse-gas emissions for 2024.
Where is 9-15 Chester Street?
9-15 Chester Street is in Cambridge, Massachusetts. Its coordinates are 42.39380, -71.12480 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 9-15 Chester Street and when was it built?
9-15 Chester Street has 26,712 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1965 as its year built. It is classed as multifamily housing.
Is 9-15 Chester 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, “9-15 Chester Street, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/9-15-chester-street-fcfd8152 (data as of October 2, 2026).