100 California Street
Office in California, CA · 100 California Street, San Francisco · 94111
At a glance
100 California Street is a 319,361-square-foot office building at 100 California Street, San Francisco in San Francisco, California, built in 1960. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 87 out of 100 (grade A), a site energy-use intensity of 31.4 kBtu/ft² and 623 tCO₂e of greenhouse-gas emissions. That score is higher than 56% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 87 (band A) |
| Site EUI | 31.4 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 623 tCO₂e |
| GHG intensity | 1.9 kgCO₂e/ft² |
| Electricity | 1,773,085 kWh |
| Natural gas | 41,673 therms |
| Gross floor area | 319,361 sq ft |
| Source record | california:1099028:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 87 | -8 | 31.4 kBtu/ft² | 623 tCO₂e |
| 2020 | 95 | +19 | 43.1 kBtu/ft² | 808 tCO₂e |
| 2018 | 76 | 55.3 kBtu/ft² | 1,162 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
- 100 California Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94111
- Coordinates
- 37.79380, -122.39797
Within ~1 km
Nearby benchmarked buildings
- 555 Californiascore 75
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- One Market Plazascore 80
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- One Market Plazascore 79
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- 555 California Streetscore 76
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- 500 BATTERY STscore —
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See also: most efficient in California · biggest emitters
How does 100 California Street compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 100 California Street's ENERGY STAR score of 87 compares with an average of 75 across the 4,912 that report a score; it scores higher than 56% of them and lower than 41%. Its site EUI of 31.4 kBtu/ft² is about 44% below 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 1.9 kgCO₂e/ft² is about half of the group average of 3.6 kgCO₂e/ft².
At 319,361 sq ft, it is about twice the average floor area of 151,937 sq ft for those buildings. It was built in 1960, 25 years earlier than 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 100 California Street's energy performance changed over time?
BuildingCensus holds 3 California disclosures for 100 California Street, covering report years 2018, 2020, 2024. Its ENERGY STAR score went from 76 in 2018 to 87 in 2024 (+11 points); its best year on file was 2020, at 95. Site EUI moved from 55.3 kBtu/ft² (2018) to 31.4 kBtu/ft² (2024), a 43% decrease. Reported emissions went from 1,162 tCO₂e to 623 tCO₂e over the same span (down 46%).
What does an ENERGY STAR score of 87 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 87 means the building performs better than about 87% of its national peers. BuildingCensus bands the score into report-card grades; 87 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. 100 California Street's 31.4 kBtu/ft² across 319,361 sq ft works out to about 10 billion Btu (2,939 MWh-equivalent) in 2024. The disclosure also reports 1,773,085 kWh of electricity and 41,673 therms of natural gas for the year.
Which law requires 100 California Street to report its energy use?
100 California Street 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 2024 disclosure (source record california:1099028:2024). 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
- 2020 West El Camino Avenue· 319,000 sq ft · score 100 (A)
- 2020 Gateway Tower· 319,000 sq ft · score 90 (A)
- 3200 Park Center Drive· 318,655 sq ft · score 88 (A)
- Ucla Wilshire Center· 318,432 sq ft · score 91 (A)
- Trillium East· 317,838 sq ft · score 94 (A)
- Oracle Hq 300 Oracle Parkway· 317,383 sq ft · score 76 (B)
- 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 100 California Street's energy grade?
100 California Street scores 87 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 100 California Street use?
Its 2024 site energy-use intensity was 31.4 kBtu/ft² across 319,361 sq ft, including 1,773,085 kWh of electricity and 41,673 therms of natural gas.
What are 100 California Street's carbon emissions?
100 California Street reported 623 tCO₂e of greenhouse-gas emissions (1.9 kgCO₂e/ft²) for 2024.
Where is 100 California Street?
100 California Street is at 100 California Street, San Francisco, in San Francisco, California 94111. Its coordinates are 37.79380, -122.39797 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 100 California Street and when was it built?
100 California Street has 319,361 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1960 as its year built. It is classed as office.
Is 100 California Street covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2024 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, “100 California Street, San Francisco, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/100-california-street-8824a345 (data as of July 9, 2026).