34 Mount Auburn St
Multifamily Housing in Cambridge, MA
At a glance
34 Mount Auburn St is a 13,993-square-foot multifamily housing building in Cambridge, Massachusetts, built in 1900. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 9 out of 100 (grade D), a site energy-use intensity of 94.3 kBtu/ft² and 81 tCO₂e of greenhouse-gas emissions. That score is higher than 2% of the 155 scored multifamily housing buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 9 (band D) |
| Site EUI | 94.3 kBtu/ft² |
| Source EUI | 170.5 kBtu/ft² |
| GHG emissions | 81 tCO₂e |
| GHG intensity | — |
| Electricity | 167,640 kWh |
| Natural gas | 7,475 therms |
| Water use | 329 kgal |
| Gross floor area | 13,993 sq ft |
| Source record | cambridge:B1418:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 9 | -91 | 94.3 kBtu/ft² | 81 tCO₂e |
| 2023 | 100 | +55 | 56.3 kBtu/ft² | 42 tCO₂e |
| 2022 | 45 | +36 | 72.1 kBtu/ft² | 61 tCO₂e |
| 2021 | 9 | -65 | 87.8 kBtu/ft² | 78 tCO₂e |
| 2020 | 74 | -25 | 43.7 kBtu/ft² | 41 tCO₂e |
| 2019 | 99 | +52 | 42.9 kBtu/ft² | 34 tCO₂e |
| 2018 | 47 | +6 | 92.0 kBtu/ft² | 73 tCO₂e |
| 2017 | 41 | +17 | 91.8 kBtu/ft² | 74 tCO₂e |
| 2016 | 24 | +4 | 99.6 kBtu/ft² | 82 tCO₂e |
| 2015 | 20 | 109.2 kBtu/ft² | 89 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
PRESIDENT & FELLOWS OF HARVARD COLLEGE
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Location
- Address
- 34 Mount Auburn St
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.37080, -71.11600
Within ~1 km
Nearby benchmarked buildings
- 1 Bennet Streetscore 67
Hotel · 498,000 sq ft
- 900 Memorial Drivescore 47
Multifamily Housing · 450,849 sq ft
- 459 Broadwayscore 71
K-12 School · 403,393 sq ft
- 1 Oxford Stscore —
College/University · 355,836 sq ft
- 75 Mount Auburn Streetscore 79
Office · 345,571 sq ft
- 1545 Massachusetts Avenuescore —
College/University · 281,097 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 34 Mount Auburn St compare with other multifamily housing buildings in Cambridge?
The latest disclosures cover 187 multifamily housing buildings in Cambridge, out of 902 buildings citywide. 34 Mount Auburn St's ENERGY STAR score of 9 compares with an average of 75 across the 155 that report a score; it scores higher than 2% of them and lower than 97%. Its site EUI of 94.3 kBtu/ft² is about 66% above the average of 56.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 13,993 sq ft, it is about 89% below the average floor area of 132,415 sq ft for those buildings. It was built in 1900, 73 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 34 Mount Auburn St's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 34 Mount Auburn St, covering report years 2015–2024. Its ENERGY STAR score went from 20 in 2015 to 9 in 2024 (-11 points); its best year on file was 2023, at 100. Site EUI moved from 109.2 kBtu/ft² (2015) to 94.3 kBtu/ft² (2024), a 14% decrease. Reported emissions went from 89 tCO₂e to 81 tCO₂e over the same span (down 9%).
What does an ENERGY STAR score of 9 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 9 means the building performs better than about 9% of its national peers. BuildingCensus bands the score into report-card grades; 9 falls in band D — lowest band (1–54). It sits 66 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. 34 Mount Auburn St's 94.3 kBtu/ft² across 13,993 sq ft works out to about 1.3 billion Btu (387 MWh-equivalent) in 2024. Its source EUI of 170.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 167,640 kWh of electricity, 7,475 therms of natural gas and 329 thousand gallons of water for the year.
Which law requires 34 Mount Auburn St to report its energy use?
34 Mount Auburn 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:B1418:2024). 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
- 46 Pilgrim St· 12,240 sq ft · EUI 73.6 kBtu/ft²
- 387 Western Ave· 11,491 sq ft · EUI 41.2 kBtu/ft²
- 3 Brookline Place· 11,250 sq ft · EUI 37.6 kBtu/ft²
- 1637 Massachusetts Avenue· 10,761 sq ft · score 96 (A)
- 30 Hingham St· 10,090 sq ft · EUI 56.7 kBtu/ft²
- 217 Thorndike Place· 10,000 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 34 Mount Auburn St's energy grade?
34 Mount Auburn St scores 9 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 34 Mount Auburn St use?
Its 2024 site energy-use intensity was 94.3 kBtu/ft² (170.5 kBtu/ft² source) across 13,993 sq ft, including 167,640 kWh of electricity and 7,475 therms of natural gas.
What are 34 Mount Auburn St's carbon emissions?
34 Mount Auburn St reported 81 tCO₂e of greenhouse-gas emissions for 2024.
Where is 34 Mount Auburn St?
34 Mount Auburn St is in Cambridge, Massachusetts. Its coordinates are 42.37080, -71.11600 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 34 Mount Auburn St and when was it built?
34 Mount Auburn St has 13,993 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1900 as its year built. It is classed as multifamily housing.
Is 34 Mount Auburn 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, “34 Mount Auburn St, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/34-mount-auburn-st-e85d734f (data as of October 2, 2026).