100 Memorial Dr
Multifamily Housing in Cambridge, MA
At a glance
100 Memorial Dr is a 280,000-square-foot multifamily housing building in Cambridge, Massachusetts, built in 1951. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 66 out of 100 (grade C), a site energy-use intensity of 84.3 kBtu/ft² and 1,319 tCO₂e of greenhouse-gas emissions. That score is higher than 30% of the 155 scored multifamily housing buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 66 (band C) |
| Site EUI | 84.3 kBtu/ft² |
| Source EUI | 109.8 kBtu/ft² |
| GHG emissions | 1,319 tCO₂e |
| GHG intensity | — |
| Electricity | 995,372 kWh |
| Natural gas | 202,110 therms |
| Water use | 7,783 kgal |
| Gross floor area | 280,000 sq ft |
| Source record | cambridge:B1132:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 66 | -4 | 84.3 kBtu/ft² | 1,319 tCO₂e |
| 2023 | 70 | +45 | 79.0 kBtu/ft² | 1,242 tCO₂e |
| 2022 | 25 | -46 | 97.1 kBtu/ft² | 1,583 tCO₂e |
| 2021 | 71 | -6 | 81.5 kBtu/ft² | 1,279 tCO₂e |
| 2020 | 77 | -23 | 78.0 kBtu/ft² | 1,661 tCO₂e |
| 2019 | 100 | +95 | 6.0 kBtu/ft² | 1,212 tCO₂e |
| 2018 | 5 | -9 | 236.3 kBtu/ft² | 1,355 tCO₂e |
| 2017 | 14 | -27 | 200.9 kBtu/ft² | 1,178 tCO₂e |
| 2016 | 41 | +9 | 195.3 kBtu/ft² | 1,099 tCO₂e |
| 2015 | 32 | 210.2 kBtu/ft² | 1,184 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
NEW ENGLAND MUTUAL LIFE
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Location
- Address
- 100 Memorial Dr
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.36020, -71.08560
Within ~1 km
Nearby benchmarked buildings
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- 325 Main Stscore 87
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- 145 Broadwayscore 91
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- 314 Main St.score 80
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- 303 Binney Stscore —
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- 32 VASSAR STscore —
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See also: most efficient in Cambridge · biggest emitters
How does 100 Memorial Dr compare with other multifamily housing buildings in Cambridge?
The latest disclosures cover 187 multifamily housing buildings in Cambridge, out of 902 buildings citywide. 100 Memorial Dr's ENERGY STAR score of 66 compares with an average of 75 across the 155 that report a score; it scores higher than 30% of them and lower than 70%. Its site EUI of 84.3 kBtu/ft² is about 48% above the average of 56.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 280,000 sq ft, it is about twice the average floor area of 132,415 sq ft for those buildings. It was built in 1951, 22 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 100 Memorial Dr's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 100 Memorial Dr, covering report years 2015–2024. Its ENERGY STAR score went from 32 in 2015 to 66 in 2024 (+34 points); its best year on file was 2019, at 100. Site EUI moved from 210.2 kBtu/ft² (2015) to 84.3 kBtu/ft² (2024), a 60% decrease. Reported emissions went from 1,184 tCO₂e to 1,319 tCO₂e over the same span (up 11%).
What does an ENERGY STAR score of 66 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 66 means the building performs better than about 66% of its national peers. BuildingCensus bands the score into report-card grades; 66 falls in band C — below median (55–69). It sits 9 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. 100 Memorial Dr's 84.3 kBtu/ft² across 280,000 sq ft works out to about 23.6 billion Btu (6,918 MWh-equivalent) in 2024. Its source EUI of 109.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 995,372 kWh of electricity, 202,110 therms of natural gas and 7,783 thousand gallons of water for the year.
Which law requires 100 Memorial Dr to report its energy use?
100 Memorial Dr 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:B1132:2024). 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
- 131 Washington Street· 275,666 sq ft · score 68 (C)
- 402 Rindge Avenue· 264,000 sq ft · score 88 (A)
- 2 Leighton Street· 262,310 sq ft · score 100 (A)
- 223 Concord Turnpike· 257,670 sq ft · score 100 (A)
- 165 Cambridge Park Drive· 250,995 sq ft · score 90 (A)
- 21 Walden Square Road· 250,389 sq ft · score 86 (A)
- 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 100 Memorial Dr's energy grade?
100 Memorial Dr scores 66 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 Cambridge disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 100 Memorial Dr use?
Its 2024 site energy-use intensity was 84.3 kBtu/ft² (109.8 kBtu/ft² source) across 280,000 sq ft, including 995,372 kWh of electricity and 202,110 therms of natural gas.
What are 100 Memorial Dr's carbon emissions?
100 Memorial Dr reported 1,319 tCO₂e of greenhouse-gas emissions for 2024.
Where is 100 Memorial Dr?
100 Memorial Dr is in Cambridge, Massachusetts. Its coordinates are 42.36020, -71.08560 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 100 Memorial Dr and when was it built?
100 Memorial Dr has 280,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1951 as its year built. It is classed as multifamily housing.
Is 100 Memorial Dr 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, “100 Memorial Dr, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/100-memorial-dr-ef1dd538 (data as of October 2, 2026).