645 Stockton
Multifamily Housing in California, CA · 645 Stockton Street, San Francisco · 94108
At a glance
645 Stockton is a 58,129-square-foot multifamily housing building at 645 Stockton Street, San Francisco in San Francisco, California, built in 1928. In its 2022 California benchmarking disclosure it reported an ENERGY STAR score of 90 out of 100 (grade A), a site energy-use intensity of 68.0 kBtu/ft² and 219 tCO₂e of greenhouse-gas emissions. That score is higher than 47% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 90 (band A) |
| Site EUI | 68.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 219 tCO₂e |
| GHG intensity | 3.8 kgCO₂e/ft² |
| Electricity | 150,508 kWh |
| Natural gas | 34,604 therms |
| Gross floor area | 58,129 sq ft |
| Source record | california:6821823:2022 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2022latest | 90 | +15 | 68.0 kBtu/ft² | 219 tCO₂e |
| 2021 | 75 | +10 | 78.1 kBtu/ft² | 242 tCO₂e |
| 2020 | 65 | -15 | 81.9 kBtu/ft² | 241 tCO₂e |
| 2019 | 80 | 71.6 kBtu/ft² | 223 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
- 645 Stockton Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94108
- Coordinates
- 37.79138, -122.40743
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 645 Stockton 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. 645 Stockton's ENERGY STAR score of 90 compares with an average of 82 across the 9,612 that report a score; it scores higher than 47% of them and lower than 51%. Its site EUI of 68.0 kBtu/ft² is about twice the average of 34.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 3.8 kgCO₂e/ft² is about 81% above the group average of 2.1 kgCO₂e/ft².
At 58,129 sq ft, it is about 61% below the average floor area of 150,919 sq ft for those buildings. It was built in 1928, 60 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 Stockton's energy performance changed over time?
BuildingCensus holds 4 California disclosures for 645 Stockton, covering report years 2019–2022. Its ENERGY STAR score went from 80 in 2019 to 90 in 2022 (+10 points). Site EUI moved from 71.6 kBtu/ft² (2019) to 68.0 kBtu/ft² (2022), a 5% decrease. Reported emissions went from 223 tCO₂e to 219 tCO₂e over the same span (down 2%).
What does an ENERGY STAR score of 90 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 90 means the building performs better than about 90% of its national peers. BuildingCensus bands the score into report-card grades; 90 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. 645 Stockton's 68.0 kBtu/ft² across 58,129 sq ft works out to about 4 billion Btu (1,158 MWh-equivalent) in 2022. The disclosure also reports 150,508 kWh of electricity and 34,604 therms of natural gas for the year.
Which law requires 645 Stockton to report its energy use?
645 Stockton 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 2022 disclosure (source record california:6821823:2022). 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
- Herald Apartments (Hr149)· 58,128 sq ft · score 88 (A)
- Terrace Apartments (Tsa)· 58,113 sq ft · score 99 (A)
- Terrace Apartments (Tsa)· 58,113 sq ft · score 100 (A)
- Red Bluff Apartments· 58,112 sq ft · score 96 (A)
- 568 - Arbor Creek Senior· 58,106 sq ft · score 98 (A)
- 120 N Syracuse St· 58,100 sq ft · score 31 (D)
- 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 Stockton's energy grade?
645 Stockton scores 90 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2022 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 645 Stockton use?
Its 2022 site energy-use intensity was 68.0 kBtu/ft² across 58,129 sq ft, including 150,508 kWh of electricity and 34,604 therms of natural gas.
What are 645 Stockton's carbon emissions?
645 Stockton reported 219 tCO₂e of greenhouse-gas emissions (3.8 kgCO₂e/ft²) for 2022.
Where is 645 Stockton?
645 Stockton is at 645 Stockton Street, San Francisco, in San Francisco, California 94108. Its coordinates are 37.79138, -122.40743 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 645 Stockton and when was it built?
645 Stockton has 58,129 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1928 as its year built. It is classed as multifamily housing.
Is 645 Stockton covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2022 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 Stockton, San Francisco, California — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/california/645-stockton-9bfea9b1 (data as of July 9, 2026).