645 Bush St
Multifamily Housing in California, CA · 645 Bush Street, San Francisco · 94108
At a glance
645 Bush St is a 30,900-square-foot multifamily housing building at 645 Bush Street, San Francisco in San Francisco, California, built in 1911. In its 2023 California benchmarking disclosure it reported 137 tCO₂e of greenhouse-gas emissions.
AB 802 (Public Resources Code §25402.10) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | — |
| Source EUI | — |
| GHG emissions | 137 tCO₂e |
| GHG intensity | 4.4 kgCO₂e/ft² |
| Electricity | 99,937 kWh |
| Gross floor area | 30,900 sq ft |
| Source record | california:9866777:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | — | 137 tCO₂e | |
| 2021 | 100 | +1 | 28.6 kBtu/ft² | 106 tCO₂e |
| 2020 | 99 | -1 | 35.3 kBtu/ft² | 122 tCO₂e |
| 2019 | 100 | 30.7 kBtu/ft² | 111 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
- 645 Bush Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94108
- Coordinates
- 37.78999, -122.40810
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 645 Bush St compare with other multifamily housing buildings in California?
The latest disclosures cover 10,630 multifamily housing buildings in California, out of 40,029 buildings citywide. Its emissions intensity of 4.4 kgCO₂e/ft² is about twice the group average of 2.1 kgCO₂e/ft².
At 30,900 sq ft, it is about 80% below the average floor area of 150,919 sq ft for those buildings. It was built in 1911, 77 years earlier than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has 645 Bush St's energy performance changed over time?
BuildingCensus holds 4 California disclosures for 645 Bush St, covering report years 2019, 2020, 2021, 2023. Its ENERGY STAR score was 100 in both 2019 and 2021. Site EUI moved from 30.7 kBtu/ft² (2019) to 28.6 kBtu/ft² (2021), a 7% decrease. Reported emissions went from 111 tCO₂e to 137 tCO₂e over the same span (up 24%).
Which law requires 645 Bush St to report its energy use?
645 Bush St 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:9866777:2023). 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 multifamily housing buildings in California
- Independence Park-6630-Gk Mgt· 30,890 sq ft · score 54 (D)
- Plaza At Sierra: Building 2· 30,856 sq ft · EUI 52.0 kBtu/ft²
- The Greens Apartments· 30,820 sq ft · EUI 61.3 kBtu/ft²
- Cesar Chavez Plaza (Jsco)· 30,740 sq ft · score 85 (A)
- La Loma· 30,535 sq ft · score 41 (D)
- 23522 Antonio Pkwy· 30,492 sq ft · score 100 (A)
- Multifamily Housing buildings in California· 10,630 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 645 Bush St's energy grade?
645 Bush St did not report an ENERGY STAR score in its 2023 disclosure.
How much energy does 645 Bush St use?
No energy-use intensity was reported for 2023.
What are 645 Bush St's carbon emissions?
645 Bush St reported 137 tCO₂e of greenhouse-gas emissions (4.4 kgCO₂e/ft²) for 2023.
Where is 645 Bush St?
645 Bush St is at 645 Bush Street, San Francisco, in San Francisco, California 94108. Its coordinates are 37.78999, -122.40810 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 645 Bush St and when was it built?
645 Bush St has 30,900 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1911 as its year built. It is classed as multifamily housing.
Is 645 Bush St 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, “645 Bush St, San Francisco, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/645-bush-st-475b631b (data as of July 9, 2026).