300 Buchanan St
Multifamily Housing in California, CA · 300 Buchanan St, San Francisco · 94102
At a glance
300 Buchanan St is a 76,608-square-foot multifamily housing building at 300 Buchanan St, San Francisco in San Francisco, California, built in 1931. In its 2019 California benchmarking disclosure it reported an ENERGY STAR score of 1 out of 100 (grade D) and 356 tCO₂e of greenhouse-gas emissions. That score is higher than 0% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2019
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 1 (band D) |
| Site EUI | — |
| Source EUI | — |
| GHG emissions | 356 tCO₂e |
| GHG intensity | 4.7 kgCO₂e/ft² |
| Electricity | 1,044,124 kWh |
| Natural gas | 19,857 therms |
| Gross floor area | 76,608 sq ft |
| Source record | california:10560934:2019 |
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
- 300 Buchanan St, San Francisco
- City
- California
- State
- California
- ZIP
- 94102
- Coordinates
- 37.77256, -122.42716
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 300 Buchanan 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. 300 Buchanan St's ENERGY STAR score of 1 compares with an average of 82 across the 9,612 that report a score; it scores higher than 0% of them and lower than 99%. Its emissions intensity of 4.7 kgCO₂e/ft² is about 122% above the group average of 2.1 kgCO₂e/ft².
At 76,608 sq ft, it is about half of the average floor area of 150,919 sq ft for those buildings. It was built in 1931, 57 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.
What does an ENERGY STAR score of 1 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: 1 is the bottom of the scale. BuildingCensus bands the score into report-card grades; 1 falls in band D — lowest band (1–54). It sits 74 points below 75, the threshold for ENERGY STAR certification. In California, 65% of scored buildings are at 75 or above.
Which law requires 300 Buchanan St to report its energy use?
300 Buchanan 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 2019 disclosure (source record california:10560934:2019). 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
- Country Club (Cn114)· 76,604 sq ft · score 100 (A)
- 480 Potrero· 76,600 sq ft · score 92 (A)
- Park Meadows Apartments· 76,596 sq ft · score 100 (A)
- Village Green· 76,582 sq ft · score 49 (D)
- 425 E Carson St· 76,579 sq ft · score 100 (A)
- 2133 Stockton· 76,576 sq ft · score 93 (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 300 Buchanan St's energy grade?
300 Buchanan St scores 1 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2019 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 300 Buchanan St use?
No energy-use intensity was reported for 2019.
What are 300 Buchanan St's carbon emissions?
300 Buchanan St reported 356 tCO₂e of greenhouse-gas emissions (4.7 kgCO₂e/ft²) for 2019.
Where is 300 Buchanan St?
300 Buchanan St is at 300 Buchanan St, San Francisco, in San Francisco, California 94102. Its coordinates are 37.77256, -122.42716 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 300 Buchanan St and when was it built?
300 Buchanan St has 76,608 sq ft of gross floor area, as reported in its 2019 disclosure. The disclosure lists 1931 as its year built. It is classed as multifamily housing.
Is 300 Buchanan St covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2019 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, “300 Buchanan St, San Francisco, California — 2019 benchmarking disclosure”, https://buildingcensus.com/buildings/california/300-buchanan-st-d2d545d6 (data as of July 9, 2026).