345 CALIFORNIA ST
Commercial in San Francisco, CA · 94104
At a glance
345 CALIFORNIA ST is a 814,226-square-foot commercial building in San Francisco, California, built in 1987. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 88 out of 100 (grade A), a site energy-use intensity of 31.3 kBtu/ft² and 1,505 tCO₂e of greenhouse-gas emissions. That score is higher than 55% of the 790 scored commercial buildings in San Francisco.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 88 (band A) |
| Site EUI | 31.3 kBtu/ft² |
| Source EUI | 68.4 kBtu/ft² |
| GHG emissions | 1,505 tCO₂e |
| GHG intensity | 1.9 kgCO₂e/ft² |
| Electricity | 4,470,182 kWh |
| Gross floor area | 814,226 sq ft |
| Source record | sf:0261/017-A:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 88 | -3 | 31.3 kBtu/ft² | 1,505 tCO₂e |
| 2024 | 91 | ±0 | 30.3 kBtu/ft² | 1,594 tCO₂e |
| 2023 | 91 | +1 | 33.2 kBtu/ft² | 1,818 tCO₂e |
| 2022 | 90 | 31.5 kBtu/ft² | 1,693 tCO₂e | |
| 2021 | — | 30.8 kBtu/ft² | 1,536 tCO₂e | |
| 2020 | — | 29.2 kBtu/ft² | 1,535 tCO₂e | |
| 2019 | 91 | +1 | 40.3 kBtu/ft² | 2,211 tCO₂e |
| 2018 | 90 | -7 | 37.9 kBtu/ft² | 2,076 tCO₂e |
| 2017 | 97 | +1 | 38.1 kBtu/ft² | 2,206 tCO₂e |
| 2016 | 96 | +1 | 40.6 kBtu/ft² | 2,588 tCO₂e |
| 2015 | 95 | ±0 | 42.8 kBtu/ft² | 2,624 tCO₂e |
| 2014 | 95 | ±0 | 42.5 kBtu/ft² | 2,612 tCO₂e |
| 2013 | 95 | +2 | 45.5 kBtu/ft² | 3,174 tCO₂e |
| 2012 | 93 | -1 | 47.6 kBtu/ft² | 3,318 tCO₂e |
| 2011 | 94 | 46.5 kBtu/ft² | 3,229 tCO₂e |
Compliance context
SF Environment Code Chapter 20
San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 345 CALIFORNIA ST
- City
- San Francisco
- State
- California
- ZIP
- 94104
- Coordinates
- 37.79260, -122.40044
Within ~1 km
Nearby benchmarked buildings
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- 555 California Streetscore 76
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- 500 BATTERY STscore —
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See also: most efficient in San Francisco · biggest emitters
How does 345 CALIFORNIA ST compare with other commercial buildings in San Francisco?
The latest disclosures cover 1,683 commercial buildings in San Francisco, out of 2,509 buildings citywide. 345 CALIFORNIA ST's ENERGY STAR score of 88 compares with an average of 78 across the 790 that report a score; it scores higher than 55% of them and lower than 42%. Its site EUI of 31.3 kBtu/ft² is about 36% below the average of 49.2 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 30% below the group average of 2.7 kgCO₂e/ft².
At 814,226 sq ft, it is about 658% above the average floor area of 107,408 sq ft for those buildings. It was built in 1987, 46 years later than the group's average year built (1941). Across all 24 jurisdictions BuildingCensus covers, the 2,307 commercial buildings average an ENERGY STAR score of 76 and a site EUI of 51.3 kBtu/ft².
How has 345 CALIFORNIA ST's energy performance changed over time?
BuildingCensus holds 15 San Francisco disclosures for 345 CALIFORNIA ST, covering report years 2011–2025. Its ENERGY STAR score went from 94 in 2011 to 88 in 2025 (-6 points); its best year on file was 2017, at 97. Site EUI moved from 46.5 kBtu/ft² (2011) to 31.3 kBtu/ft² (2025), a 33% decrease. Reported emissions went from 3,229 tCO₂e to 1,505 tCO₂e over the same span (down 53%).
What does an ENERGY STAR score of 88 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 88 means the building performs better than about 88% of its national peers. BuildingCensus bands the score into report-card grades; 88 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 San Francisco, 73% 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. 345 CALIFORNIA ST's 31.3 kBtu/ft² across 814,226 sq ft works out to about 25.5 billion Btu (7,469 MWh-equivalent) in 2025. Its source EUI of 68.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,470,182 kWh of electricity for the year.
Which law requires 345 CALIFORNIA ST to report its energy use?
345 CALIFORNIA ST reports under SF Environment Code Chapter 20, the legal basis of San Francisco's Existing Buildings Energy Performance Ordinance, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record sf:0261/017-A:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
More commercial buildings in San Francisco
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- 50 California Street· 785,149 sq ft · score 97 (A)
- 44 Montgomery· 781,262 sq ft · score 80 (B)
- 560 Mission Street· 778,782 sq ft · score 89 (A)
- 1101 Van Ness· 777,383 sq ft · score 37 (D)
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- Commercial buildings in San Francisco· 1,683 benchmarked
- All San Francisco benchmarked buildings· SF Environment Code Chapter 20
- Most efficient large buildings in San Francisco
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Frequently asked questions
What is 345 CALIFORNIA ST's energy grade?
345 CALIFORNIA ST scores 88 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2025 San Francisco disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 345 CALIFORNIA ST use?
Its 2025 site energy-use intensity was 31.3 kBtu/ft² (68.4 kBtu/ft² source) across 814,226 sq ft, including 4,470,182 kWh of electricity.
What are 345 CALIFORNIA ST's carbon emissions?
345 CALIFORNIA ST reported 1,505 tCO₂e of greenhouse-gas emissions (1.9 kgCO₂e/ft²) for 2025.
Where is 345 CALIFORNIA ST?
345 CALIFORNIA ST is in San Francisco, California 94104. Its coordinates are 37.79260, -122.40044 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is 345 CALIFORNIA ST and when was it built?
345 CALIFORNIA ST has 814,226 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1987 as its year built. It is classed as commercial.
Is 345 CALIFORNIA ST covered by SF Environment Code Chapter 20?
Yes — it appears in the 2025 Existing Buildings Energy Performance Ordinance disclosure, which lists the buildings reporting under SF Environment Code Chapter 20.
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About this data
Source: Existing Buildings Energy Performance Ordinance (SF Environment Code Chapter 20), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “345 CALIFORNIA ST, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/345-california-st-865978aa (data as of October 2, 2026).