100 Technology Square
Mixed Use Property in Cambridge, MA
At a glance
100 Technology Square is a 255,441-square-foot mixed use property building in Cambridge, Massachusetts, built in 2001. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 1 out of 100 (grade D), a site energy-use intensity of 398.4 kBtu/ft² and 6,516 tCO₂e of greenhouse-gas emissions. That score is higher than 0% of the 5 scored mixed use property buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 1 (band D) |
| Site EUI | 398.4 kBtu/ft² |
| Source EUI | 732.5 kBtu/ft² |
| GHG emissions | 6,516 tCO₂e |
| GHG intensity | — |
| Electricity | 12,919,786 kWh |
| Natural gas | 375,076 therms |
| Water use | 4,141 kgal |
| Gross floor area | 255,441 sq ft |
| Source record | cambridge:B1113:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 1 | ±0 | 398.4 kBtu/ft² | 6,516 tCO₂e |
| 2023 | 1 | ±0 | 384.2 kBtu/ft² | 6,277 tCO₂e |
| 2022 | 1 | ±0 | 304.4 kBtu/ft² | 4,925 tCO₂e |
| 2021 | 1 | ±0 | 320.6 kBtu/ft² | 5,281 tCO₂e |
| 2020 | 1 | ±0 | 366.3 kBtu/ft² | 5,818 tCO₂e |
| 2019 | 1 | ±0 | 354.7 kBtu/ft² | 5,394 tCO₂e |
| 2018 | 1 | ±0 | 328.8 kBtu/ft² | 5,133 tCO₂e |
| 2017 | 1 | ±0 | 316.6 kBtu/ft² | 5,126 tCO₂e |
| 2016 | 1 | ±0 | 314.6 kBtu/ft² | 5,179 tCO₂e |
| 2015 | 1 | 343.1 kBtu/ft² | 5,788 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 REAL ESTATE, LLC,
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Location
- Address
- 100 Technology Square
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.36340, -71.09050
Within ~1 km
Nearby benchmarked buildings
- 250 Massachusetts Avenuescore —
Laboratory · 1,362,662 sq ft
- 250 Massachusetts Avenuescore —
Laboratory · 517,029 sq ft
- 325 Main Stscore 87
Office · 494,512 sq ft
- 145 Broadwayscore 91
Office · 490,000 sq ft
- 314 Main St.score 80
Office · 482,220 sq ft
- 303 Binney Stscore —
Laboratory · 480,000 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 100 Technology Square compare with other mixed use property buildings in Cambridge?
The latest disclosures cover 22 mixed use property buildings in Cambridge, out of 902 buildings citywide. 100 Technology Square's ENERGY STAR score of 1 compares with an average of 6 across the 5 that report a score; it scores higher than 0% of them and lower than 40%. Its site EUI of 398.4 kBtu/ft² is about 148% above the average of 160.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 255,441 sq ft, it is about twice the average floor area of 121,587 sq ft for those buildings. It was built in 2001, 31 years later than the group's average year built (1970). Across all 24 jurisdictions BuildingCensus covers, the 1,212 mixed use property buildings average an ENERGY STAR score of 69 and a site EUI of 79.8 kBtu/ft².
How has 100 Technology Square's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 100 Technology Square, covering report years 2015–2024. Its ENERGY STAR score was 1 in both 2015 and 2024. Site EUI moved from 343.1 kBtu/ft² (2015) to 398.4 kBtu/ft² (2024), an 16% increase. Reported emissions went from 5,788 tCO₂e to 6,516 tCO₂e over the same span (up 13%).
What does an ENERGY STAR score of 1 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: 1 is the bottom of the scale. BuildingCensus bands the score into report-card grades; 1 falls in band D — lowest band (1–54). It sits 74 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 Technology Square's 398.4 kBtu/ft² across 255,441 sq ft works out to about 101.8 billion Btu (29,825 MWh-equivalent) in 2024. Its source EUI of 732.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 12,919,786 kWh of electricity, 375,076 therms of natural gas and 4,141 thousand gallons of water for the year.
Which law requires 100 Technology Square to report its energy use?
100 Technology Square 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:B1113:2024). 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 mixed use property buildings in Cambridge
- One Kendall Square· 246,793 sq ft · EUI 186.5 kBtu/ft²
- 200 Technology Square· 177,161 sq ft · EUI 417.2 kBtu/ft²
- 300 Technology Square· 175,609 sq ft · score 1 (D)
- One Kendall Square· 140,058 sq ft · score 10 (D)
- 300 3 Rd ST· 131,639 sq ft · EUI 255.9 kBtu/ft²
- 50 Church Street· 96,605 sq ft · EUI 26.3 kBtu/ft²
- 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 Technology Square's energy grade?
100 Technology Square scores 1 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 100 Technology Square use?
Its 2024 site energy-use intensity was 398.4 kBtu/ft² (732.5 kBtu/ft² source) across 255,441 sq ft, including 12,919,786 kWh of electricity and 375,076 therms of natural gas.
What are 100 Technology Square's carbon emissions?
100 Technology Square reported 6,516 tCO₂e of greenhouse-gas emissions for 2024.
Where is 100 Technology Square?
100 Technology Square is in Cambridge, Massachusetts. Its coordinates are 42.36340, -71.09050 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 100 Technology Square and when was it built?
100 Technology Square has 255,441 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2001 as its year built. It is classed as mixed use property.
Is 100 Technology Square 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 Technology Square, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/100-technology-square-91504b23 (data as of October 2, 2026).