At a glance
10-14 Arrow Street and 25-27 Mount Auburn Street is a 63,198-square-foot office building in Cambridge, Massachusetts, built in 1860. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 92 out of 100 (grade A), a site energy-use intensity of 40.1 kBtu/ft² and 157 tCO₂e of greenhouse-gas emissions. That score is higher than 95% of the 94 scored office buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 92 (band A) |
| Site EUI | 40.1 kBtu/ft² |
| Source EUI | 74.3 kBtu/ft² |
| GHG emissions | 157 tCO₂e |
| GHG intensity | — |
| Electricity | 340,491 kWh |
| Natural gas | 13,755 therms |
| Water use | 150 kgal |
| Gross floor area | 63,198 sq ft |
| Source record | cambridge:B1715:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 92 | -4 | 40.1 kBtu/ft² | 157 tCO₂e |
| 2023 | 96 | +2 | 34.7 kBtu/ft² | 133 tCO₂e |
| 2022 | 94 | ±0 | 36.6 kBtu/ft² | 141 tCO₂e |
| 2021 | 94 | -1 | 38.3 kBtu/ft² | 146 tCO₂e |
| 2020 | 95 | +5 | 37.5 kBtu/ft² | 142 tCO₂e |
| 2019 | 90 | +2 | 45.6 kBtu/ft² | 169 tCO₂e |
| 2018 | 88 | ±0 | 47.8 kBtu/ft² | 183 tCO₂e |
| 2017 | 88 | -1 | 48.8 kBtu/ft² | 192 tCO₂e |
| 2016 | 89 | +6 | 45.4 kBtu/ft² | 181 tCO₂e |
| 2015 | 83 | 53.5 kBtu/ft² | 216 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
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 10-14 Arrow Street and 25-27 Mount Auburn Street
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.37100, -71.11490
Within ~1 km
Nearby benchmarked buildings
- 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
- 1545 Massachusetts Avenuescore —
College/University · 281,097 sq ft
- 12 Oxford Stscore —
Laboratory · 261,875 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 10-14 Arrow Street and 25-27 Mount Auburn Street compare with other office buildings in Cambridge?
The latest disclosures cover 117 office buildings in Cambridge, out of 902 buildings citywide. 10-14 Arrow Street and 25-27 Mount Auburn Street's ENERGY STAR score of 92 compares with an average of 64 across the 94 that report a score; it scores higher than 95% of them and lower than 4%. Its site EUI of 40.1 kBtu/ft² is about half of the average of 78.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 63,198 sq ft, it is about half of the average floor area of 121,167 sq ft for those buildings. It was built in 1860, 105 years earlier than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 10-14 Arrow Street and 25-27 Mount Auburn Street's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 10-14 Arrow Street and 25-27 Mount Auburn Street, covering report years 2015–2024. Its ENERGY STAR score went from 83 in 2015 to 92 in 2024 (+9 points); its best year on file was 2023, at 96. Site EUI moved from 53.5 kBtu/ft² (2015) to 40.1 kBtu/ft² (2024), a 25% decrease. Reported emissions went from 216 tCO₂e to 157 tCO₂e over the same span (down 27%).
What does an ENERGY STAR score of 92 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 92 means the building performs better than about 92% of its national peers. BuildingCensus bands the score into report-card grades; 92 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. 10-14 Arrow Street and 25-27 Mount Auburn Street's 40.1 kBtu/ft² across 63,198 sq ft works out to about 2.5 billion Btu (743 MWh-equivalent) in 2024. Its source EUI of 74.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 340,491 kWh of electricity, 13,755 therms of natural gas and 150 thousand gallons of water for the year.
Which law requires 10-14 Arrow Street and 25-27 Mount Auburn Street to report its energy use?
10-14 Arrow Street and 25-27 Mount Auburn 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:B1715:2024). 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 office buildings in Cambridge
- 8 Story St· 61,666 sq ft · EUI 44.9 kBtu/ft²
- 121 First Street· 61,565 sq ft · score 77 (B)
- 58 Charles Street· 61,114 sq ft · score 69 (C)
- 784 Memorial Drive· 61,000 sq ft · score 61 (C)
- 11 Hurley St· 59,783 sq ft · EUI 174.9 kBtu/ft²
- 795 Massachusetts Avenue· 59,140 sq ft · EUI 57.5 kBtu/ft²
- Office buildings in Cambridge· 117 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 10-14 Arrow Street and 25-27 Mount Auburn Street's energy grade?
10-14 Arrow Street and 25-27 Mount Auburn Street scores 92 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 Cambridge disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 10-14 Arrow Street and 25-27 Mount Auburn Street use?
Its 2024 site energy-use intensity was 40.1 kBtu/ft² (74.3 kBtu/ft² source) across 63,198 sq ft, including 340,491 kWh of electricity and 13,755 therms of natural gas.
What are 10-14 Arrow Street and 25-27 Mount Auburn Street's carbon emissions?
10-14 Arrow Street and 25-27 Mount Auburn Street reported 157 tCO₂e of greenhouse-gas emissions for 2024.
Where is 10-14 Arrow Street and 25-27 Mount Auburn Street?
10-14 Arrow Street and 25-27 Mount Auburn Street is in Cambridge, Massachusetts. Its coordinates are 42.37100, -71.11490 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 10-14 Arrow Street and 25-27 Mount Auburn Street and when was it built?
10-14 Arrow Street and 25-27 Mount Auburn Street has 63,198 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1860 as its year built. It is classed as office.
Is 10-14 Arrow Street and 25-27 Mount Auburn 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, “10-14 Arrow Street and 25-27 Mount Auburn Street, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/10-14-arrow-street-and-25-27-mount-auburn-street-89fa2f0c (data as of October 2, 2026).