8 Mill St
At a glance
8 Mill St is a 220,317-square-foot residence hall/dormitory in Cambridge, Massachusetts, built in 1926. In its 2024 Cambridge benchmarking disclosure it reported a site energy-use intensity of 99.0 kBtu/ft² and 1,466 tCO₂e of greenhouse-gas emissions.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 99.0 kBtu/ft² |
| Source EUI | 154.6 kBtu/ft² |
| GHG emissions | 1,466 tCO₂e |
| GHG intensity | — |
| Electricity | 1,498,852 kWh |
| Natural gas | 1,693 therms |
| Water use | 4,520 kgal |
| Gross floor area | 220,317 sq ft |
| Source record | cambridge:B1272:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 99.0 kBtu/ft² | 1,466 tCO₂e | |
| 2023 | — | 102.0 kBtu/ft² | 1,510 tCO₂e | |
| 2022 | — | 110.3 kBtu/ft² | 1,629 tCO₂e | |
| 2021 | — | 100.6 kBtu/ft² | 1,487 tCO₂e | |
| 2020 | — | 87.7 kBtu/ft² | 1,292 tCO₂e | |
| 2019 | — | 105.6 kBtu/ft² | 1,523 tCO₂e | |
| 2018 | — | 106.0 kBtu/ft² | 1,561 tCO₂e | |
| 2017 | — | — | 1,366 tCO₂e | |
| 2016 | — | 95.8 kBtu/ft² | 1,436 tCO₂e | |
| 2015 | — | 108.2 kBtu/ft² | 1,576 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
- 8 Mill St
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.36940, -71.11630
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
- 95 Dunster Stscore —
Residence Hall/Dormitory · 257,543 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 8 Mill St compare with other residence hall/dormitory buildings in Cambridge?
The latest disclosures cover 43 residence hall/dormitory buildings in Cambridge, out of 902 buildings citywide. Its site EUI of 99.0 kBtu/ft² is about 41% above the average of 70.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 220,317 sq ft, it is about twice the average floor area of 102,348 sq ft for those buildings. It was built in 1926, 10 years later than the group's average year built (1916). Across all 24 jurisdictions BuildingCensus covers, the 702 residence hall/dormitory buildings average an ENERGY STAR score of 70 and a site EUI of 70.7 kBtu/ft².
How has 8 Mill St's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 8 Mill St, covering report years 2015–2024. Site EUI moved from 108.2 kBtu/ft² (2015) to 99.0 kBtu/ft² (2024), a 9% decrease. Reported emissions went from 1,576 tCO₂e to 1,466 tCO₂e over the same span (down 7%).
What does a site EUI of 99.0 kBtu/ft² mean?
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. 8 Mill St's 99.0 kBtu/ft² across 220,317 sq ft works out to about 21.8 billion Btu (6,392 MWh-equivalent) in 2024. Its source EUI of 154.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,498,852 kWh of electricity, 1,693 therms of natural gas and 4,520 thousand gallons of water for the year.
Which law requires 8 Mill St to report its energy use?
8 Mill 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:B1272:2024). 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 residence hall/dormitory buildings in Cambridge
- 101 Dunster St· 218,775 sq ft · EUI 80.0 kBtu/ft²
- 10 Holyoke Pl· 216,722 sq ft · EUI 73.4 kBtu/ft²
- 45 Flagg St· 209,979 sq ft · score 78 (B)
- 53 Bow Street· 203,985 sq ft · EUI 72.5 kBtu/ft²
- 64 Linnaean Street· 191,944 sq ft · EUI 67.8 kBtu/ft²
- 945 Memorial Dr· 189,856 sq ft · EUI 78.5 kBtu/ft²
- Residence Hall/Dormitory buildings in Cambridge· 43 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 8 Mill St's energy grade?
8 Mill St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 99.0 kBtu/ft².
How much energy does 8 Mill St use?
Its 2024 site energy-use intensity was 99.0 kBtu/ft² (154.6 kBtu/ft² source) across 220,317 sq ft, including 1,498,852 kWh of electricity and 1,693 therms of natural gas.
What are 8 Mill St's carbon emissions?
8 Mill St reported 1,466 tCO₂e of greenhouse-gas emissions for 2024.
Where is 8 Mill St?
8 Mill St is in Cambridge, Massachusetts. Its coordinates are 42.36940, -71.11630 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 8 Mill St and when was it built?
8 Mill St has 220,317 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1926 as its year built. It is classed as residence hall/dormitory.
Is 8 Mill 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, “8 Mill St, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/8-mill-st-4005529a (data as of October 2, 2026).