400 Montgomery Street
Office in California, CA · 400 Montgomery Street, San Francisco · 94111
At a glance
400 Montgomery Street is a 90,996-square-foot office building at 400 Montgomery Street, San Francisco in San Francisco, California, built in 1902. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 94 out of 100 (grade A), a site energy-use intensity of 32.4 kBtu/ft² and 201 tCO₂e of greenhouse-gas emissions. That score is higher than 75% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 94 (band A) |
| Site EUI | 32.4 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 201 tCO₂e |
| GHG intensity | 2.2 kgCO₂e/ft² |
| Electricity | 350,660 kWh |
| Natural gas | 1,463 therms |
| Gross floor area | 90,996 sq ft |
| Source record | california:3976430:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 94 | +3 | 32.4 kBtu/ft² | 201 tCO₂e |
| 2022 | 91 | -1 | 30.4 kBtu/ft² | 183 tCO₂e |
| 2021 | 92 | +4 | 28.9 kBtu/ft² | 164 tCO₂e |
| 2020 | 88 | -3 | 34.9 kBtu/ft² | 206 tCO₂e |
| 2019 | 91 | +4 | 36.9 kBtu/ft² | 215 tCO₂e |
| 2018 | 87 | 37.1 kBtu/ft² | 229 tCO₂e |
Compliance context
AB 802 (Public Resources Code §25402.10)
AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 400 Montgomery Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94111
- Coordinates
- 37.79313, -122.40262
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 400 Montgomery Street compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 400 Montgomery Street's ENERGY STAR score of 94 compares with an average of 75 across the 4,912 that report a score; it scores higher than 75% of them and lower than 22%. Its site EUI of 32.4 kBtu/ft² is about 43% below the average of 56.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.2 kgCO₂e/ft² is about 39% below the group average of 3.6 kgCO₂e/ft².
At 90,996 sq ft, it is about 40% below the average floor area of 151,937 sq ft for those buildings. It was built in 1902, 83 years earlier than the group's average year built (1985). 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 400 Montgomery Street's energy performance changed over time?
BuildingCensus holds 6 California disclosures for 400 Montgomery Street, covering report years 2018–2023. Its ENERGY STAR score went from 87 in 2018 to 94 in 2023 (+7 points). Site EUI moved from 37.1 kBtu/ft² (2018) to 32.4 kBtu/ft² (2023), a 13% decrease. Reported emissions went from 229 tCO₂e to 201 tCO₂e over the same span (down 12%).
What does an ENERGY STAR score of 94 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 94 means the building performs better than about 94% of its national peers. BuildingCensus bands the score into report-card grades; 94 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 California, 65% 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. 400 Montgomery Street's 32.4 kBtu/ft² across 90,996 sq ft works out to about 2.9 billion Btu (864 MWh-equivalent) in 2023. The disclosure also reports 350,660 kWh of electricity and 1,463 therms of natural gas for the year.
Which law requires 400 Montgomery Street to report its energy use?
400 Montgomery Street reports under AB 802 (Public Resources Code §25402.10), the legal basis of California's Building Energy Benchmarking Program (statewide), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2023 disclosure (source record california:3976430:2023). AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
More office buildings in California
- 541 E. Trimble· 90,974 sq ft · score 69 (C)
- Mt. Eden - Building D· 90,910 sq ft · score 44 (D)
- Building - Northwest· 90,900 sq ft · score 40 (D)
- 00877-Dha Main· 90,843 sq ft
- Granite Creek Business Center· 90,839 sq ft · EUI 85.3 kBtu/ft²
- Corporate Park Plaza· 90,824 sq ft · score 72 (B)
- Office buildings in California· 6,214 benchmarked
- All California benchmarked buildings· AB 802 (Public Resources Code §25402.10)
- Most efficient large buildings in California
- Least efficient large buildings in California
- Biggest emitters in California
Frequently asked questions
What is 400 Montgomery Street's energy grade?
400 Montgomery Street scores 94 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 400 Montgomery Street use?
Its 2023 site energy-use intensity was 32.4 kBtu/ft² across 90,996 sq ft, including 350,660 kWh of electricity and 1,463 therms of natural gas.
What are 400 Montgomery Street's carbon emissions?
400 Montgomery Street reported 201 tCO₂e of greenhouse-gas emissions (2.2 kgCO₂e/ft²) for 2023.
Where is 400 Montgomery Street?
400 Montgomery Street is at 400 Montgomery Street, San Francisco, in San Francisco, California 94111. Its coordinates are 37.79313, -122.40262 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 400 Montgomery Street and when was it built?
400 Montgomery Street has 90,996 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1902 as its year built. It is classed as office.
Is 400 Montgomery Street covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2023 Building Energy Benchmarking Program (statewide) disclosure, which lists the buildings reporting under AB 802 (Public Resources Code §25402.10).
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About this data
Source: Building Energy Benchmarking Program (statewide) (AB 802 (Public Resources Code §25402.10)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “400 Montgomery Street, San Francisco, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/400-montgomery-street-fc2985a9 (data as of July 9, 2026).