41-43 Linnaean Street
Multifamily Housing in Cambridge, MA
At a glance
41-43 Linnaean Street is a 94,360-square-foot multifamily housing building in Cambridge, Massachusetts, built in 1922. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 52 out of 100 (grade D), a site energy-use intensity of 62.2 kBtu/ft² and 324 tCO₂e of greenhouse-gas emissions. That score is higher than 19% of the 155 scored multifamily housing buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 52 (band D) |
| Site EUI | 62.2 kBtu/ft² |
| Source EUI | 76.9 kBtu/ft² |
| GHG emissions | 324 tCO₂e |
| GHG intensity | — |
| Electricity | 182,844 kWh |
| Natural gas | 52,432 therms |
| Water use | 1,969 kgal |
| Gross floor area | 94,360 sq ft |
| Source record | cambridge:B1441:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 52 | +7 | 62.2 kBtu/ft² | 324 tCO₂e |
| 2023 | 45 | +8 | 64.6 kBtu/ft² | 335 tCO₂e |
| 2022 | 37 | -14 | 72.4 kBtu/ft² | 374 tCO₂e |
| 2021 | 51 | +1 | 64.6 kBtu/ft² | 335 tCO₂e |
| 2020 | 50 | +4 | 65.4 kBtu/ft² | 339 tCO₂e |
| 2019 | 46 | -5 | 70.0 kBtu/ft² | 359 tCO₂e |
| 2018 | 51 | -7 | 70.2 kBtu/ft² | 362 tCO₂e |
| 2017 | 58 | -31 | 62.9 kBtu/ft² | 327 tCO₂e |
| 2016 | 89 | -11 | 59.5 kBtu/ft² | 338 tCO₂e |
| 2015 | 100 | 7.6 kBtu/ft² | 58 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
Condo building
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Location
- Address
- 41-43 Linnaean Street
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.38370, -71.12420
Within ~1 km
Nearby benchmarked buildings
- 1 Oxford Stscore —
College/University · 355,836 sq ft
- 1545 Massachusetts Avenuescore —
College/University · 281,097 sq ft
- 1586 Massachusetts Avenuescore —
College/University · 262,602 sq ft
- 46-56 Linnaean Streetscore —
Residence Hall/Dormitory · 251,014 sq ft
- 21 Walden Square Roadscore 86
Multifamily Housing · 250,389 sq ft
- 1815 MASSACHUSETTS AVEscore —
College/University · 231,590 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 41-43 Linnaean Street compare with other multifamily housing buildings in Cambridge?
The latest disclosures cover 187 multifamily housing buildings in Cambridge, out of 902 buildings citywide. 41-43 Linnaean Street's ENERGY STAR score of 52 compares with an average of 75 across the 155 that report a score; it scores higher than 19% of them and lower than 79%. Its site EUI of 62.2 kBtu/ft² is roughly in line with the average of 56.9 kBtu/ft².
At 94,360 sq ft, it is about 29% below the average floor area of 132,415 sq ft for those buildings. It was built in 1922, 51 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 41-43 Linnaean Street's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 41-43 Linnaean Street, covering report years 2015–2024. Its ENERGY STAR score went from 100 in 2015 to 52 in 2024 (-48 points); its best year on file was 2015, at 100. Site EUI moved from 7.6 kBtu/ft² (2015) to 62.2 kBtu/ft² (2024), an 718% increase. Reported emissions went from 58 tCO₂e to 324 tCO₂e over the same span (up 458%).
What does an ENERGY STAR score of 52 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 52 means the building performs better than about 52% of its national peers. BuildingCensus bands the score into report-card grades; 52 falls in band D — lowest band (1–54). It sits 23 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. 41-43 Linnaean Street's 62.2 kBtu/ft² across 94,360 sq ft works out to about 5.9 billion Btu (1,720 MWh-equivalent) in 2024. Its source EUI of 76.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 182,844 kWh of electricity, 52,432 therms of natural gas and 1,969 thousand gallons of water for the year.
Which law requires 41-43 Linnaean Street to report its energy use?
41-43 Linnaean 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:B1441:2024). 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
- 295 Harvard Street· 93,900 sq ft · score 97 (A)
- 14 Roosevelt Towers· 91,526 sq ft · score 27 (D)
- 249 Third Street· 86,381 sq ft · score 98 (A)
- 9-13a Ware St· 84,090 sq ft · score 79 (B)
- 1600 Massachusetts Avenue· 82,696 sq ft
- 169 Monsignor O'Brien Highway· 81,440 sq ft · score 79 (B)
- 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 41-43 Linnaean Street's energy grade?
41-43 Linnaean Street scores 52 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 41-43 Linnaean Street use?
Its 2024 site energy-use intensity was 62.2 kBtu/ft² (76.9 kBtu/ft² source) across 94,360 sq ft, including 182,844 kWh of electricity and 52,432 therms of natural gas.
What are 41-43 Linnaean Street's carbon emissions?
41-43 Linnaean Street reported 324 tCO₂e of greenhouse-gas emissions for 2024.
Where is 41-43 Linnaean Street?
41-43 Linnaean Street is in Cambridge, Massachusetts. Its coordinates are 42.38370, -71.12420 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 41-43 Linnaean Street and when was it built?
41-43 Linnaean Street has 94,360 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1922 as its year built. It is classed as multifamily housing.
Is 41-43 Linnaean 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, “41-43 Linnaean Street, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/41-43-linnaean-street-41a03df2 (data as of October 2, 2026).