1817 CALIFORNIA ST
Mixed Residential in San Francisco, CA · 94109
At a glance
1817 CALIFORNIA ST is a 87,074-square-foot mixed residential building in San Francisco, California, built in 1960. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 19.1 kBtu/ft² and 74 tCO₂e of greenhouse-gas emissions. That score is higher than 69% of the 340 scored mixed residential buildings in San Francisco.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 19.1 kBtu/ft² |
| Source EUI | 27.3 kBtu/ft² |
| GHG emissions | 74 tCO₂e |
| GHG intensity | 1.0 kgCO₂e/ft² |
| Electricity | 87,422 kWh |
| Natural gas | 10,781 therms |
| Gross floor area | 87,074 sq ft |
| Source record | sf:0648/026:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 100 | ±0 | 19.1 kBtu/ft² | 74 tCO₂e |
| 2024 | 100 | ±0 | 20.3 kBtu/ft² | 82 tCO₂e |
| 2023 | 100 | ±0 | 20.3 kBtu/ft² | 84 tCO₂e |
| 2022 | 100 | 19.2 kBtu/ft² | 78 tCO₂e | |
| 2021 | — | — | — | |
| 2020 | — | — | — | |
| 2019 | — | — | — | |
| 2018 | — | — | — |
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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 1817 CALIFORNIA ST
- City
- San Francisco
- State
- California
- ZIP
- 94109
- Coordinates
- 37.78956, -122.42454
Within ~1 km
Nearby benchmarked buildings
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Hospital (General Medical & Surgical) · 777,383 sq ft
- 1661 PINE STscore —
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Multifamily Housing · 524,271 sq ft
- 66 CLEARY CTscore 96
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- 1400 Geary Blvdscore 100
Multifamily Housing · 406,047 sq ft
See also: most efficient in San Francisco · biggest emitters
How does 1817 CALIFORNIA ST compare with other mixed residential buildings in San Francisco?
The latest disclosures cover 610 mixed residential buildings in San Francisco, out of 2,509 buildings citywide. 1817 CALIFORNIA ST's ENERGY STAR score of 100 compares with an average of 85 across the 340 that report a score; it scores higher than 69% of them. Its site EUI of 19.1 kBtu/ft² is about half of the average of 36.0 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.0 kgCO₂e/ft² is about half of the group average of 2.0 kgCO₂e/ft².
At 87,074 sq ft, it is about half of the average floor area of 165,572 sq ft for those buildings. It was built in 1960, 6 years earlier than the group's average year built (1967).
How has 1817 CALIFORNIA ST's energy performance changed over time?
BuildingCensus holds 8 San Francisco disclosures for 1817 CALIFORNIA ST, covering report years 2018–2025. Its ENERGY STAR score was 100 in both 2022 and 2025. Site EUI moved from 19.2 kBtu/ft² (2022) to 19.1 kBtu/ft² (2025), a 1% decrease. Reported emissions went from 78 tCO₂e to 74 tCO₂e over the same span (down 5%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. 1817 CALIFORNIA ST's 19.1 kBtu/ft² across 87,074 sq ft works out to about 1.7 billion Btu (487 MWh-equivalent) in 2025. Its source EUI of 27.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 87,422 kWh of electricity and 10,781 therms of natural gas for the year.
Which law requires 1817 CALIFORNIA ST to report its energy use?
1817 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:0648/026:2025). 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 mixed residential buildings in San Francisco
- 950 HARRISON ST· 86,692 sq ft · score 90 (A)
- 1247 HARRISON ST· 86,423 sq ft · score 100 (A)
- Ceatrice Polite Apartments· 86,400 sq ft · score 83 (B)
- 5173 DIAMOND HEIGHTS BLVD· 85,928 sq ft · score 100 (A)
- 818 Van Ness Ave· 85,817 sq ft
- 620 JONES ST· 85,619 sq ft · score 84 (B)
- Mixed Residential buildings in San Francisco· 610 benchmarked
- All San Francisco benchmarked buildings· SF Environment Code Chapter 20
- Most efficient large buildings in San Francisco
- Least efficient large buildings in San Francisco
- Biggest emitters in San Francisco
Frequently asked questions
What is 1817 CALIFORNIA ST's energy grade?
1817 CALIFORNIA ST scores 100 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 1817 CALIFORNIA ST use?
Its 2025 site energy-use intensity was 19.1 kBtu/ft² (27.3 kBtu/ft² source) across 87,074 sq ft, including 87,422 kWh of electricity and 10,781 therms of natural gas.
What are 1817 CALIFORNIA ST's carbon emissions?
1817 CALIFORNIA ST reported 74 tCO₂e of greenhouse-gas emissions (1.0 kgCO₂e/ft²) for 2025.
Where is 1817 CALIFORNIA ST?
1817 CALIFORNIA ST is in San Francisco, California 94109. Its coordinates are 37.78956, -122.42454 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is 1817 CALIFORNIA ST and when was it built?
1817 CALIFORNIA ST has 87,074 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1960 as its year built. It is classed as mixed residential.
Is 1817 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, “1817 CALIFORNIA ST, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/1817-california-st-23b51457 (data as of October 2, 2026).