337R5-San Francisco Marriott Union Squar
Hotel in California, CA · 480 Sutter Street, San Francisco · 94108
At a glance
337R5-San Francisco Marriott Union Squar is a 348,000-square-foot hotel at 480 Sutter Street, San Francisco in San Francisco, California, built in 1972. In its 2020 California benchmarking disclosure it reported an ENERGY STAR score of 84 out of 100 (grade B), a site energy-use intensity of 71.3 kBtu/ft² and 1,442 tCO₂e of greenhouse-gas emissions. That score is higher than 51% of the 1,525 scored hotel buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2020
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 84 (band B) |
| Site EUI | 71.3 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 1,442 tCO₂e |
| GHG intensity | 4.1 kgCO₂e/ft² |
| Electricity | 2,734,100 kWh |
| Natural gas | 154,989 therms |
| Gross floor area | 348,000 sq ft |
| Source record | california:3351612:2020 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2020latest | 84 | +33 | 71.3 kBtu/ft² | 1,442 tCO₂e |
| 2019 | 51 | -3 | 104.3 kBtu/ft² | 2,127 tCO₂e |
| 2018 | 54 | 101.0 kBtu/ft² | 2,090 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
- 480 Sutter Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94108
- Coordinates
- 37.78928, -122.40821
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 337R5-San Francisco Marriott Union Squar compare with other hotel buildings in California?
The latest disclosures cover 1,599 hotel buildings in California, out of 40,029 buildings citywide. 337R5-San Francisco Marriott Union Squar's ENERGY STAR score of 84 compares with an average of 74 across the 1,525 that report a score; it scores higher than 51% of them and lower than 47%. Its site EUI of 71.3 kBtu/ft² is roughly in line with the average of 65.6 kBtu/ft². Its emissions intensity of 4.1 kgCO₂e/ft² is roughly in line with the group average of 4.0 kgCO₂e/ft².
At 348,000 sq ft, it is about twice the average floor area of 167,786 sq ft for those buildings. It was built in 1972, 16 years earlier 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 337R5-San Francisco Marriott Union Squar's energy performance changed over time?
BuildingCensus holds 3 California disclosures for 337R5-San Francisco Marriott Union Squar, covering report years 2018–2020. Its ENERGY STAR score went from 54 in 2018 to 84 in 2020 (+30 points). Site EUI moved from 101.0 kBtu/ft² (2018) to 71.3 kBtu/ft² (2020), a 29% decrease. Reported emissions went from 2,090 tCO₂e to 1,442 tCO₂e over the same span (down 31%).
What does an ENERGY STAR score of 84 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 84 means the building performs better than about 84% of its national peers. BuildingCensus bands the score into report-card grades; 84 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 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. 337R5-San Francisco Marriott Union Squar's 71.3 kBtu/ft² across 348,000 sq ft works out to about 24.8 billion Btu (7,272 MWh-equivalent) in 2020. The disclosure also reports 2,734,100 kWh of electricity and 154,989 therms of natural gas for the year.
Which law requires 337R5-San Francisco Marriott Union Squar to report its energy use?
337R5-San Francisco Marriott Union Squar 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 2020 disclosure (source record california:3351612:2020). 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
- Newport Beach Ca Ren· 347,106 sq ft · score 67 (C)
- 9674T - Renaissance Newport Beach Hotel· 347,000 sq ft · score 47 (D)
- Hilton Woodland Hills· 346,315 sq ft · EUI 59.3 kBtu/ft²
- Seabird Resort· 346,288 sq ft · score 95 (A)
- Riu Plaza Fisherman'S Wharf Hotel· 345,000 sq ft · score 98 (A)
- Doubletree By Hilton Anaheim - Orange County (Snacc)· 345,000 sq ft · score 72 (B)
- 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 337R5-San Francisco Marriott Union Squar's energy grade?
337R5-San Francisco Marriott Union Squar scores 84 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2020 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 337R5-San Francisco Marriott Union Squar use?
Its 2020 site energy-use intensity was 71.3 kBtu/ft² across 348,000 sq ft, including 2,734,100 kWh of electricity and 154,989 therms of natural gas.
What are 337R5-San Francisco Marriott Union Squar's carbon emissions?
337R5-San Francisco Marriott Union Squar reported 1,442 tCO₂e of greenhouse-gas emissions (4.1 kgCO₂e/ft²) for 2020.
Where is 337R5-San Francisco Marriott Union Squar?
337R5-San Francisco Marriott Union Squar is at 480 Sutter Street, San Francisco, in San Francisco, California 94108. Its coordinates are 37.78928, -122.40821 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 337R5-San Francisco Marriott Union Squar and when was it built?
337R5-San Francisco Marriott Union Squar has 348,000 sq ft of gross floor area, as reported in its 2020 disclosure. The disclosure lists 1972 as its year built. It is classed as hotel.
Is 337R5-San Francisco Marriott Union Squar covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2020 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, “337R5-San Francisco Marriott Union Squar, San Francisco, California — 2020 benchmarking disclosure”, https://buildingcensus.com/buildings/california/337r5-san-francisco-marriott-union-squar-237ca3db (data as of July 9, 2026).