The Axiom
Hotel in California, CA · 28 Cyril Magnin Street, San Francisco · 94102
At a glance
The Axiom is a 83,256-square-foot hotel at 28 Cyril Magnin Street, San Francisco in San Francisco, California, built in 2014. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 92 out of 100 (grade A), a site energy-use intensity of 47.4 kBtu/ft² and 251 tCO₂e of greenhouse-gas emissions. That score is higher than 67% of the 1,525 scored hotel buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 92 (band A) |
| Site EUI | 47.4 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 251 tCO₂e |
| GHG intensity | 3.0 kgCO₂e/ft² |
| Electricity | 672,889 kWh |
| Natural gas | 16,523 therms |
| Gross floor area | 83,256 sq ft |
| Source record | california:4929301:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 92 | -1 | 47.4 kBtu/ft² | 251 tCO₂e |
| 2022 | 93 | -5 | 41.9 kBtu/ft² | 222 tCO₂e |
| 2021 | 98 | +1 | 32.5 kBtu/ft² | 158 tCO₂e |
| 2020 | 97 | +27 | 38.3 kBtu/ft² | 193 tCO₂e |
| 2019 | 70 | +2 | 64.3 kBtu/ft² | 340 tCO₂e |
| 2018 | 68 | 62.1 kBtu/ft² | 334 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
- 28 Cyril Magnin Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94102
- Coordinates
- 37.78490, -122.40819
Within ~1 km
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See also: most efficient in California · biggest emitters
How does The Axiom compare with other hotel buildings in California?
The latest disclosures cover 1,599 hotel buildings in California, out of 40,029 buildings citywide. The Axiom's ENERGY STAR score of 92 compares with an average of 74 across the 1,525 that report a score; it scores higher than 67% of them and lower than 29%. Its site EUI of 47.4 kBtu/ft² is about 28% below the average of 65.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.0 kgCO₂e/ft² is about 25% below the group average of 4.0 kgCO₂e/ft².
At 83,256 sq ft, it is about half of the average floor area of 167,786 sq ft for those buildings. It was built in 2014, 26 years later than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².
How has The Axiom's energy performance changed over time?
BuildingCensus holds 6 California disclosures for The Axiom, covering report years 2018–2023. Its ENERGY STAR score went from 68 in 2018 to 92 in 2023 (+24 points); its best year on file was 2021, at 98. Site EUI moved from 62.1 kBtu/ft² (2018) to 47.4 kBtu/ft² (2023), a 24% decrease. Reported emissions went from 334 tCO₂e to 251 tCO₂e over the same span (down 25%).
What does an ENERGY STAR score of 92 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 92 means the building performs better than about 92% of its national peers. BuildingCensus bands the score into report-card grades; 92 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. The Axiom's 47.4 kBtu/ft² across 83,256 sq ft works out to about 3.9 billion Btu (1,157 MWh-equivalent) in 2023. The disclosure also reports 672,889 kWh of electricity and 16,523 therms of natural gas for the year.
Which law requires The Axiom to report its energy use?
The Axiom 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:4929301:2023). 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 hotel buildings in California
- Homewood Suites Mission Valley· 83,104 sq ft · score 81 (B)
- Courtyard By Marriott· 83,102 sq ft · score 54 (D)
- Shs Mission Valley· 83,000 sq ft · EUI 51.8 kBtu/ft²
- Holiday Inn Carlsbad· 82,870 sq ft · score 100 (A)
- Healdsburg Ca Trio· 82,628 sq ft · score 71 (B)
- 0919-Orange County (La Palma/Theme Park· 82,600 sq ft · score 40 (D)
- Hotel buildings in California· 1,599 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 The Axiom's energy grade?
The Axiom scores 92 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Axiom use?
Its 2023 site energy-use intensity was 47.4 kBtu/ft² across 83,256 sq ft, including 672,889 kWh of electricity and 16,523 therms of natural gas.
What are The Axiom's carbon emissions?
The Axiom reported 251 tCO₂e of greenhouse-gas emissions (3.0 kgCO₂e/ft²) for 2023.
Where is The Axiom?
The Axiom is at 28 Cyril Magnin Street, San Francisco, in San Francisco, California 94102. Its coordinates are 37.78490, -122.40819 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is The Axiom and when was it built?
The Axiom has 83,256 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2014 as its year built. It is classed as hotel.
Is The Axiom 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, “The Axiom, San Francisco, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/the-axiom-58491b27 (data as of July 9, 2026).