227 Bay: 227 Bay
Multifamily Housing in California, CA · 227 Bay Street, San Francisco · 94133
At a glance
227 Bay: 227 Bay is a 50,212-square-foot multifamily housing building at 227 Bay Street, San Francisco in San Francisco, California, built in 1971. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 81 out of 100 (grade B), a site energy-use intensity of 22.0 kBtu/ft² and 74 tCO₂e of greenhouse-gas emissions. That score is higher than 33% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 81 (band B) |
| Site EUI | 22.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 74 tCO₂e |
| GHG intensity | 1.5 kgCO₂e/ft² |
| Electricity | 233,289 kWh |
| Natural gas | 3,350 therms |
| Gross floor area | 50,212 sq ft |
| Source record | california:7151609:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 81 | -7 | 22.0 kBtu/ft² | 74 tCO₂e |
| 2022 | 88 | +16 | 20.3 kBtu/ft² | 67 tCO₂e |
| 2021 | 72 | -8 | 23.9 kBtu/ft² | 68 tCO₂e |
| 2020 | 80 | -7 | 22.9 kBtu/ft² | 66 tCO₂e |
| 2019 | 87 | 21.5 kBtu/ft² | 64 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
- 227 Bay Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94133
- Coordinates
- 37.80562, -122.41130
Within ~1 km
Nearby benchmarked buildings
- 101 LOMBARD ST / 1425 SANSOME STscore 97
Mixed Residential · 470,714 sq ft
- 211 BEACH STscore 98
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- 260 BAY STscore 100
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- 999 Green Streetscore 94
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- 999 GREEN STscore —
Mixed Residential · 381,255 sq ft
- 160 BAY STscore 100
Mixed Residential · 373,369 sq ft
See also: most efficient in California · biggest emitters
How does 227 Bay: 227 Bay 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. 227 Bay: 227 Bay's ENERGY STAR score of 81 compares with an average of 82 across the 9,612 that report a score; it scores higher than 33% of them and lower than 66%. Its site EUI of 22.0 kBtu/ft² is about 36% below the average of 34.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.5 kgCO₂e/ft² is about 29% below the group average of 2.1 kgCO₂e/ft².
At 50,212 sq ft, it is about 67% below the average floor area of 150,919 sq ft for those buildings. It was built in 1971, 17 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 227 Bay: 227 Bay's energy performance changed over time?
BuildingCensus holds 5 California disclosures for 227 Bay: 227 Bay, covering report years 2019–2023. Its ENERGY STAR score went from 87 in 2019 to 81 in 2023 (-6 points); its best year on file was 2022, at 88. Site EUI moved from 21.5 kBtu/ft² (2019) to 22.0 kBtu/ft² (2023), an 2% increase. Reported emissions went from 64 tCO₂e to 74 tCO₂e over the same span (up 16%).
What does an ENERGY STAR score of 81 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 81 means the building performs better than about 81% of its national peers. BuildingCensus bands the score into report-card grades; 81 falls in band B — above median (70–84). 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. 227 Bay: 227 Bay's 22.0 kBtu/ft² across 50,212 sq ft works out to about 1.1 billion Btu (324 MWh-equivalent) in 2023. The disclosure also reports 233,289 kWh of electricity and 3,350 therms of natural gas for the year.
Which law requires 227 Bay: 227 Bay to report its energy use?
227 Bay: 227 Bay 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:7151609:2023). 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
- 4124 Eagle Rock Blvd: 4124 Eagle Rock Blvd· 50,210 sq ft · score 64 (C)
- 4124 Eagle Rock Blvd· 50,210 sq ft · score 76 (B)
- 718 Monterey· 50,204 sq ft · score 100 (A)
- Rippling River· 50,190 sq ft · score 22 (D)
- 3400 Cahuenga (Bldg D - Multi-Family)· 50,184 sq ft · score 95 (A)
- 91098 7Th St· 50,150 sq ft · score 45 (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 227 Bay: 227 Bay's energy grade?
227 Bay: 227 Bay scores 81 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 227 Bay: 227 Bay use?
Its 2023 site energy-use intensity was 22.0 kBtu/ft² across 50,212 sq ft, including 233,289 kWh of electricity and 3,350 therms of natural gas.
What are 227 Bay: 227 Bay's carbon emissions?
227 Bay: 227 Bay reported 74 tCO₂e of greenhouse-gas emissions (1.5 kgCO₂e/ft²) for 2023.
Where is 227 Bay: 227 Bay?
227 Bay: 227 Bay is at 227 Bay Street, San Francisco, in San Francisco, California 94133. Its coordinates are 37.80562, -122.41130 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 227 Bay: 227 Bay and when was it built?
227 Bay: 227 Bay has 50,212 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1971 as its year built. It is classed as multifamily housing.
Is 227 Bay: 227 Bay 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, “227 Bay: 227 Bay, San Francisco, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/227-bay-227-bay-0d25830d (data as of July 9, 2026).