The Worth Hotel
Multifamily Housing in California, CA · 639 Post Street, San Francisco · 94109
At a glance
The Worth Hotel is a 105,646-square-foot multifamily housing building at 639 Post Street, San Francisco in San Francisco, California, built in 1914. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 17.2 kBtu/ft² and 105 tCO₂e of greenhouse-gas emissions. That score is higher than 76% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 17.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 105 tCO₂e |
| GHG intensity | 1.0 kgCO₂e/ft² |
| Electricity | 113,297 kWh |
| Natural gas | 14,849 therms |
| Gross floor area | 105,646 sq ft |
| Source record | california:7078820:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 17.2 kBtu/ft² | 105 tCO₂e |
| 2023 | 100 | ±0 | 18.4 kBtu/ft² | 110 tCO₂e |
| 2022 | 100 | ±0 | 18.4 kBtu/ft² | 108 tCO₂e |
| 2021 | 100 | ±0 | 20.1 kBtu/ft² | 109 tCO₂e |
| 2020 | 100 | ±0 | — | 109 tCO₂e |
| 2019 | 100 | 24.6 kBtu/ft² | 134 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 639 Post Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94109
- Coordinates
- 37.78770, -122.41228
Within ~1 km
Nearby benchmarked buildings
Commercial · 1,964,250 sq ft
Hotel · 1,964,250 sq ft
Hotel · 1,964,250 sq ft
Commercial · 1,684,713 sq ft
Hotel · 1,578,964 sq ft
- Westin St. Francis Hotelscore 100
Commercial · 1,315,996 sq ft
See also: most efficient in California · biggest emitters
How does The Worth Hotel compare with other multifamily housing buildings in California?
The latest disclosures cover 10,630 multifamily housing buildings in California, out of 40,029 buildings citywide. The Worth Hotel's ENERGY STAR score of 100 compares with an average of 82 across the 9,612 that report a score; it scores higher than 76% of them. Its site EUI of 17.2 kBtu/ft² is about half of the average of 34.4 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 2.1 kgCO₂e/ft².
At 105,646 sq ft, it is about 30% below the average floor area of 150,919 sq ft for those buildings. It was built in 1914, 74 years earlier than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has The Worth Hotel's energy performance changed over time?
BuildingCensus holds 6 California disclosures for The Worth Hotel, covering report years 2019–2024. Its ENERGY STAR score was 100 in both 2019 and 2024. Site EUI moved from 24.6 kBtu/ft² (2019) to 17.2 kBtu/ft² (2024), a 30% decrease. Reported emissions went from 134 tCO₂e to 105 tCO₂e over the same span (down 22%).
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 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 Worth Hotel's 17.2 kBtu/ft² across 105,646 sq ft works out to about 1.8 billion Btu (533 MWh-equivalent) in 2024. The disclosure also reports 113,297 kWh of electricity and 14,849 therms of natural gas for the year.
Which law requires The Worth Hotel to report its energy use?
The Worth Hotel 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 2024 disclosure (source record california:7078820:2024). 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 multifamily housing buildings in California
- 2992 Half Moon Village Ii· 105,637 sq ft · score 95 (A)
- Half Moon Village: 2992 Half Moon Village Ii· 105,637 sq ft · score 78 (B)
- The Marquee· 105,578 sq ft · score 100 (A)
- 734 Bush St· 105,528 sq ft · score 1 (D)
- 2901 Yorba Linda Blvd· 105,468 sq ft · score 18 (D)
- Camino Ruiz Square - Essex (Cm196)· 105,448 sq ft · EUI 16.6 kBtu/ft²
- Multifamily Housing buildings in California· 10,630 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 Worth Hotel's energy grade?
The Worth Hotel scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Worth Hotel use?
Its 2024 site energy-use intensity was 17.2 kBtu/ft² across 105,646 sq ft, including 113,297 kWh of electricity and 14,849 therms of natural gas.
What are The Worth Hotel's carbon emissions?
The Worth Hotel reported 105 tCO₂e of greenhouse-gas emissions (1.0 kgCO₂e/ft²) for 2024.
Where is The Worth Hotel?
The Worth Hotel is at 639 Post Street, San Francisco, in San Francisco, California 94109. Its coordinates are 37.78770, -122.41228 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is The Worth Hotel and when was it built?
The Worth Hotel has 105,646 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1914 as its year built. It is classed as multifamily housing.
Is The Worth Hotel covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2024 Building Energy Benchmarking Program (statewide) disclosure, which lists the buildings reporting under AB 802 (Public Resources Code §25402.10).
Working with California building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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 Worth Hotel, San Francisco, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/the-worth-hotel-566d4a83 (data as of July 9, 2026).