Fairmont Hotel - San Francisco
Commercial in San Francisco, CA · 950 Mason St · 94108
At a glance
Fairmont Hotel - San Francisco is a 804,136-square-foot commercial building at 950 Mason St in San Francisco, California, built in 1962. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 83 out of 100 (grade B), a site energy-use intensity of 77.3 kBtu/ft² and 3,383 tCO₂e of greenhouse-gas emissions. That score is higher than 44% of the 790 scored commercial buildings in San Francisco.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 83 (band B) |
| Site EUI | 77.3 kBtu/ft² |
| Source EUI | 125.4 kBtu/ft² |
| GHG emissions | 3,383 tCO₂e |
| GHG intensity | 4.2 kgCO₂e/ft² |
| Electricity | 5,964,714 kWh |
| Natural gas | 417,834 therms |
| Gross floor area | 804,136 sq ft |
| Source record | sf:0244/001:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 83 | -3 | 77.3 kBtu/ft² | 3,383 tCO₂e |
| 2024 | 86 | -2 | 72.6 kBtu/ft² | 3,372 tCO₂e |
| 2023 | 88 | +2 | 73.3 kBtu/ft² | 3,466 tCO₂e |
| 2022 | 86 | 73.7 kBtu/ft² | 3,454 tCO₂e | |
| 2021 | — | 70.4 kBtu/ft² | 3,136 tCO₂e | |
| 2020 | — | — | — | |
| 2019 | — | — | — | |
| 2018 | — | — | — | |
| 2017 | — | — | — | |
| 2016 | — | — | — | |
| 2015 | — | — | — | |
| 2014 | — | — | — | |
| 2013 | — | — | — | |
| 2012 | — | — | — |
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
- 950 Mason St
- City
- San Francisco
- State
- California
- ZIP
- 94108
- Coordinates
- 37.79243, -122.41009
Within ~1 km
Nearby benchmarked buildings
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- 555 California Streetscore 76
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See also: most efficient in San Francisco · biggest emitters
How does Fairmont Hotel - San Francisco 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. Fairmont Hotel - San Francisco's ENERGY STAR score of 83 compares with an average of 78 across the 790 that report a score; it scores higher than 44% of them and lower than 54%. Its site EUI of 77.3 kBtu/ft² is about 57% above the average of 49.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 4.2 kgCO₂e/ft² is about 56% above the group average of 2.7 kgCO₂e/ft².
At 804,136 sq ft, it is about 649% above the average floor area of 107,408 sq ft for those buildings. It was built in 1962, 21 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 Fairmont Hotel - San Francisco's energy performance changed over time?
BuildingCensus holds 14 San Francisco disclosures for Fairmont Hotel - San Francisco, covering report years 2012–2025. Its ENERGY STAR score went from 86 in 2022 to 83 in 2025 (-3 points); its best year on file was 2023, at 88. Site EUI moved from 70.4 kBtu/ft² (2021) to 77.3 kBtu/ft² (2025), an 10% increase. Reported emissions went from 3,136 tCO₂e to 3,383 tCO₂e over the same span (up 8%).
What does an ENERGY STAR score of 83 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 83 means the building performs better than about 83% of its national peers. BuildingCensus bands the score into report-card grades; 83 falls in band B — above median (70–84). 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. Fairmont Hotel - San Francisco's 77.3 kBtu/ft² across 804,136 sq ft works out to about 62.2 billion Btu (18,217 MWh-equivalent) in 2025. Its source EUI of 125.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 5,964,714 kWh of electricity and 417,834 therms of natural gas for the year.
Which law requires Fairmont Hotel - San Francisco to report its energy use?
Fairmont Hotel - San Francisco 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:0244/001:2025). 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
- 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)
- Kaiser Permanente San Francisco Hospital Campus· 767,122 sq ft · score 72 (B)
- 333 Market Street· 756,925 sq ft · score 74 (B)
- 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
- Least efficient large buildings in San Francisco
- Biggest emitters in San Francisco
Frequently asked questions
What is Fairmont Hotel - San Francisco's energy grade?
Fairmont Hotel - San Francisco scores 83 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2025 San Francisco disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Fairmont Hotel - San Francisco use?
Its 2025 site energy-use intensity was 77.3 kBtu/ft² (125.4 kBtu/ft² source) across 804,136 sq ft, including 5,964,714 kWh of electricity and 417,834 therms of natural gas.
What are Fairmont Hotel - San Francisco's carbon emissions?
Fairmont Hotel - San Francisco reported 3,383 tCO₂e of greenhouse-gas emissions (4.2 kgCO₂e/ft²) for 2025.
Where is Fairmont Hotel - San Francisco?
Fairmont Hotel - San Francisco is at 950 Mason St, in San Francisco, California 94108. Its coordinates are 37.79243, -122.41009 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is Fairmont Hotel - San Francisco and when was it built?
Fairmont Hotel - San Francisco has 804,136 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1962 as its year built. It is classed as commercial.
Is Fairmont Hotel - San Francisco 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, “Fairmont Hotel - San Francisco, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/fairmont-hotel-san-francisco-09018c24 (data as of October 2, 2026).