300 Massachusetts Ave
Laboratory in Cambridge, MA
At a glance
300 Massachusetts Ave is a 274,456-square-foot laboratory building in Cambridge, Massachusetts, built in 2015. In its 2024 Cambridge benchmarking disclosure it reported a site energy-use intensity of 106.6 kBtu/ft² and 1,836 tCO₂e of greenhouse-gas emissions.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 106.6 kBtu/ft² |
| Source EUI | 206.0 kBtu/ft² |
| GHG emissions | 1,836 tCO₂e |
| GHG intensity | — |
| Electricity | 4,322,520 kWh |
| Natural gas | 145,076 therms |
| Water use | 4,423 kgal |
| Gross floor area | 274,456 sq ft |
| Source record | cambridge:B1592:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 106.6 kBtu/ft² | 1,836 tCO₂e | |
| 2023 | — | 142.6 kBtu/ft² | 2,518 tCO₂e | |
| 2022 | — | 154.5 kBtu/ft² | 2,701 tCO₂e | |
| 2021 | — | 199.0 kBtu/ft² | 3,393 tCO₂e | |
| 2020 | — | 168.9 kBtu/ft² | 2,925 tCO₂e | |
| 2019 | — | 178.9 kBtu/ft² | 2,946 tCO₂e | |
| 2018 | — | 166.0 kBtu/ft² | 2,867 tCO₂e | |
| 2017 | — | 155.7 kBtu/ft² | 2,807 tCO₂e | |
| 2016 | — | 164.9 kBtu/ft² | 2,935 tCO₂e | |
| 2015 | — | — | 0 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
MIT WEST 300 BLOCK MASS AVE
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Location
- Address
- 300 Massachusetts Ave
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.36210, -71.09900
Within ~1 km
Nearby benchmarked buildings
- 250 Massachusetts Avenuescore —
Laboratory · 1,362,662 sq ft
- 250 Massachusetts Avenuescore —
Laboratory · 517,029 sq ft
- 43 VASSAR STscore —
College/University · 418,663 sq ft
- 70 PACIFIC STscore —
College/University · 362,687 sq ft
- 575 Memorial Drivescore 37
Hotel · 347,000 sq ft
- 610 Main Streetscore —
Laboratory · 278,738 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 300 Massachusetts Ave compare with other laboratory buildings in Cambridge?
The latest disclosures cover 88 laboratory buildings in Cambridge, out of 902 buildings citywide. Its site EUI of 106.6 kBtu/ft² is about 61% below the average of 272.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 274,456 sq ft, it is about 51% above the average floor area of 181,468 sq ft for those buildings. It was built in 2015, 31 years later than the group's average year built (1984). Across all 24 jurisdictions BuildingCensus covers, the 795 laboratory buildings average an ENERGY STAR score of 29 and a site EUI of 231.7 kBtu/ft².
How has 300 Massachusetts Ave's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 300 Massachusetts Ave, covering report years 2015–2024. Site EUI moved from 164.9 kBtu/ft² (2016) to 106.6 kBtu/ft² (2024), a 35% decrease.
What does a site EUI of 106.6 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. 300 Massachusetts Ave's 106.6 kBtu/ft² across 274,456 sq ft works out to about 29.3 billion Btu (8,574 MWh-equivalent) in 2024. Its source EUI of 206.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,322,520 kWh of electricity, 145,076 therms of natural gas and 4,423 thousand gallons of water for the year.
Which law requires 300 Massachusetts Ave to report its energy use?
300 Massachusetts Ave 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:B1592:2024). 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 laboratory buildings in Cambridge
- 350 Water St· 273,077 sq ft · EUI 309.6 kBtu/ft²
- 12 Oxford St· 261,875 sq ft · EUI 312.7 kBtu/ft²
- 9 Cambridge Center· 253,819 sq ft · EUI 304.8 kBtu/ft²
- 150 Cambridge Park Drive· 247,548 sq ft · EUI 194.5 kBtu/ft²
- 15 Cambridge Center· 245,405 sq ft · EUI 433.2 kBtu/ft²
- 300 Binney Street· 236,000 sq ft · EUI 20.9 kBtu/ft²
- Laboratory buildings in Cambridge· 88 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 300 Massachusetts Ave's energy grade?
300 Massachusetts Ave did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 106.6 kBtu/ft².
How much energy does 300 Massachusetts Ave use?
Its 2024 site energy-use intensity was 106.6 kBtu/ft² (206.0 kBtu/ft² source) across 274,456 sq ft, including 4,322,520 kWh of electricity and 145,076 therms of natural gas.
What are 300 Massachusetts Ave's carbon emissions?
300 Massachusetts Ave reported 1,836 tCO₂e of greenhouse-gas emissions for 2024.
Where is 300 Massachusetts Ave?
300 Massachusetts Ave is in Cambridge, Massachusetts. Its coordinates are 42.36210, -71.09900 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 300 Massachusetts Ave and when was it built?
300 Massachusetts Ave has 274,456 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2015 as its year built. It is classed as laboratory.
Is 300 Massachusetts Ave 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, “300 Massachusetts Ave, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/300-massachusetts-ave-81b12092 (data as of October 2, 2026).