456 Montgomery
Office in California, CA · 456 Montgomery Street, San Francisco · 94104
At a glance
456 Montgomery is a 270,099-square-foot office building at 456 Montgomery Street, San Francisco in San Francisco, California, built in 1985. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 97 out of 100 (grade A), a site energy-use intensity of 30.5 kBtu/ft² and 582 tCO₂e of greenhouse-gas emissions. That score is higher than 82% 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 | 97 (band A) |
| Site EUI | 30.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 582 tCO₂e |
| GHG intensity | 2.2 kgCO₂e/ft² |
| Electricity | 1,730,557 kWh |
| Gross floor area | 270,099 sq ft |
| Source record | california:1210231:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 97 | ±0 | 30.5 kBtu/ft² | 582 tCO₂e |
| 2022 | 97 | ±0 | 33.3 kBtu/ft² | 619 tCO₂e |
| 2021 | 97 | ±0 | 33.4 kBtu/ft² | 552 tCO₂e |
| 2020 | 97 | +5 | 39.3 kBtu/ft² | 629 tCO₂e |
| 2019 | 92 | +6 | 45.7 kBtu/ft² | 831 tCO₂e |
| 2018 | 86 | 39.0 kBtu/ft² | 733 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 456 Montgomery Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94104
- Coordinates
- 37.79361, -122.40261
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 456 Montgomery compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 456 Montgomery's ENERGY STAR score of 97 compares with an average of 75 across the 4,912 that report a score; it scores higher than 82% of them and lower than 15%. Its site EUI of 30.5 kBtu/ft² is about half of 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 270,099 sq ft, it is about 78% above the average floor area of 151,937 sq ft for those buildings. Its 1985 construction date is close to 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 456 Montgomery's energy performance changed over time?
BuildingCensus holds 6 California disclosures for 456 Montgomery, covering report years 2018–2023. Its ENERGY STAR score went from 86 in 2018 to 97 in 2023 (+11 points); its best year on file was 2020, at 97. Site EUI moved from 39.0 kBtu/ft² (2018) to 30.5 kBtu/ft² (2023), a 22% decrease. Reported emissions went from 733 tCO₂e to 582 tCO₂e over the same span (down 21%).
What does an ENERGY STAR score of 97 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 97 means the building performs better than about 97% of its national peers. BuildingCensus bands the score into report-card grades; 97 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. 456 Montgomery's 30.5 kBtu/ft² across 270,099 sq ft works out to about 8.2 billion Btu (2,414 MWh-equivalent) in 2023. The disclosure also reports 1,730,557 kWh of electricity for the year.
Which law requires 456 Montgomery to report its energy use?
456 Montgomery 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:1210231:2023). 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
- Santa Monica Public Safety Facility & City Hall· 269,472 sq ft · score 70 (B)
- 1 & 3 Glen Bell Way· 269,121 sq ft · EUI 96.5 kBtu/ft²
- Scv - Tantau 10 (Ta10)· 268,795 sq ft · score 17 (D)
- 2250 Lawson Lane· 268,556 sq ft · score 99 (A)
- La Jolla Executive Tower· 268,407 sq ft · score 92 (A)
- Dhs - Ferguson Administrative Services Center (Ab 802)· 268,400 sq ft · score 10 (D)
- 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 456 Montgomery's energy grade?
456 Montgomery scores 97 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 456 Montgomery use?
Its 2023 site energy-use intensity was 30.5 kBtu/ft² across 270,099 sq ft, including 1,730,557 kWh of electricity.
What are 456 Montgomery's carbon emissions?
456 Montgomery reported 582 tCO₂e of greenhouse-gas emissions (2.2 kgCO₂e/ft²) for 2023.
Where is 456 Montgomery?
456 Montgomery is at 456 Montgomery Street, San Francisco, in San Francisco, California 94104. Its coordinates are 37.79361, -122.40261 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 456 Montgomery and when was it built?
456 Montgomery has 270,099 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1985 as its year built. It is classed as office.
Is 456 Montgomery 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, “456 Montgomery, San Francisco, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/456-montgomery-9b387443 (data as of July 9, 2026).