Hotel Zephyr
Commercial in San Francisco, CA · 250 BEACH ST · 94133
At a glance
Hotel Zephyr is a 330,190-square-foot commercial building at 250 BEACH ST in San Francisco, California, built in 1963. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 96 out of 100 (grade A), a site energy-use intensity of 33.4 kBtu/ft² and 497 tCO₂e of greenhouse-gas emissions. That score is higher than 76% of the 790 scored commercial buildings in San Francisco.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 96 (band A) |
| Site EUI | 33.4 kBtu/ft² |
| Source EUI | 60.6 kBtu/ft² |
| GHG emissions | 497 tCO₂e |
| GHG intensity | 1.8 kgCO₂e/ft² |
| Electricity | 1,164,428 kWh |
| Natural gas | 50,851 therms |
| Gross floor area | 330,190 sq ft |
| Source record | sf:0014/001:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 96 | +13 | 33.4 kBtu/ft² | 497 tCO₂e |
| 2024 | 83 | +47 | 44.1 kBtu/ft² | 588 tCO₂e |
| 2023 | 36 | ±0 | 59.9 kBtu/ft² | 859 tCO₂e |
| 2022 | 36 | -64 | 59.1 kBtu/ft² | 832 tCO₂e |
| 2021 | 100 | 27.8 kBtu/ft² | 502 tCO₂e | |
| 2020 | — | 18.8 kBtu/ft² | 318 tCO₂e | |
| 2019 | — | 39.1 kBtu/ft² | 656 tCO₂e | |
| 2018 | 69 | ±0 | 51.3 kBtu/ft² | 704 tCO₂e |
| 2017 | 69 | +30 | 50.4 kBtu/ft² | 694 tCO₂e |
| 2016 | 39 | +7 | 56.4 kBtu/ft² | 818 tCO₂e |
| 2015 | 32 | +1 | 75.0 kBtu/ft² | 800 tCO₂e |
| 2014 | 31 | 76.2 kBtu/ft² | 806 tCO₂e | |
| 2013 | — | — | — | |
| 2012 | — | — | — | |
| 2011 | — | — | — |
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
- 250 BEACH ST
- City
- San Francisco
- State
- California
- ZIP
- 94133
- Coordinates
- 37.80805, -122.41325
Within ~1 km
Nearby benchmarked buildings
- 211 BEACH STscore 98
Commercial · 405,000 sq ft
- 260 BAY STscore 100
Mixed Residential · 398,046 sq ft
- 160 BAY STscore 100
Mixed Residential · 373,369 sq ft
- North Beach Placescore 85
Mixed Residential · 351,326 sq ft
- North Beach Placescore 86
Multifamily Housing · 351,326 sq ft
- 240 BAY STscore 100
Mixed Residential · 348,983 sq ft
See also: most efficient in San Francisco · biggest emitters
How does Hotel Zephyr 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. Hotel Zephyr's ENERGY STAR score of 96 compares with an average of 78 across the 790 that report a score; it scores higher than 76% of them and lower than 21%. Its site EUI of 33.4 kBtu/ft² is about 32% 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 1.8 kgCO₂e/ft² is about 32% below the group average of 2.7 kgCO₂e/ft².
At 330,190 sq ft, it is about 207% above the average floor area of 107,408 sq ft for those buildings. It was built in 1963, 22 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 Hotel Zephyr's energy performance changed over time?
BuildingCensus holds 15 San Francisco disclosures for Hotel Zephyr, covering report years 2011–2025. Its ENERGY STAR score went from 31 in 2014 to 96 in 2025 (+65 points); its best year on file was 2021, at 100. Site EUI moved from 76.2 kBtu/ft² (2014) to 33.4 kBtu/ft² (2025), a 56% decrease. Reported emissions went from 806 tCO₂e to 497 tCO₂e over the same span (down 38%).
What does an ENERGY STAR score of 96 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 96 means the building performs better than about 96% of its national peers. BuildingCensus bands the score into report-card grades; 96 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. Hotel Zephyr's 33.4 kBtu/ft² across 330,190 sq ft works out to about 11 billion Btu (3,232 MWh-equivalent) in 2025. Its source EUI of 60.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,164,428 kWh of electricity and 50,851 therms of natural gas for the year.
Which law requires Hotel Zephyr to report its energy use?
Hotel Zephyr 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:0014/001:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
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Frequently asked questions
What is Hotel Zephyr's energy grade?
Hotel Zephyr scores 96 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 Hotel Zephyr use?
Its 2025 site energy-use intensity was 33.4 kBtu/ft² (60.6 kBtu/ft² source) across 330,190 sq ft, including 1,164,428 kWh of electricity and 50,851 therms of natural gas.
What are Hotel Zephyr's carbon emissions?
Hotel Zephyr reported 497 tCO₂e of greenhouse-gas emissions (1.8 kgCO₂e/ft²) for 2025.
Where is Hotel Zephyr?
Hotel Zephyr is at 250 BEACH ST, in San Francisco, California 94133. Its coordinates are 37.80805, -122.41325 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is Hotel Zephyr and when was it built?
Hotel Zephyr has 330,190 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1963 as its year built. It is classed as commercial.
Is Hotel Zephyr 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, “Hotel Zephyr, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/hotel-zephyr-3260bdb3 (data as of October 2, 2026).