730 Polk Street
Office in California, CA · 730 Polk Street, San Francisco · 94109
At a glance
730 Polk Street is a 57,649-square-foot office building at 730 Polk Street, San Francisco in San Francisco, California, built in 1922. In its 2018 California benchmarking disclosure it reported an ENERGY STAR score of 31 out of 100 (grade D), a site energy-use intensity of 75.7 kBtu/ft² and 283 tCO₂e of greenhouse-gas emissions. That score is higher than 9% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2018
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 31 (band D) |
| Site EUI | 75.7 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 283 tCO₂e |
| GHG intensity | 4.9 kgCO₂e/ft² |
| Electricity | 856,283 kWh |
| Natural gas | 14,440 therms |
| Gross floor area | 57,649 sq ft |
| Source record | california:6320002:2018 |
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
- 730 Polk Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94109
- Coordinates
- 37.78363, -122.41928
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 730 Polk Street compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 730 Polk Street's ENERGY STAR score of 31 compares with an average of 75 across the 4,912 that report a score; it scores higher than 9% of them and lower than 90%. Its site EUI of 75.7 kBtu/ft² is about 34% above the average of 56.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 4.9 kgCO₂e/ft² is about 36% above the group average of 3.6 kgCO₂e/ft².
At 57,649 sq ft, it is about 62% below the average floor area of 151,937 sq ft for those buildings. It was built in 1922, 63 years earlier than the group's average year built (1985). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
What does an ENERGY STAR score of 31 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 31 means the building performs better than about 31% of its national peers. BuildingCensus bands the score into report-card grades; 31 falls in band D — lowest band (1–54). It sits 44 points below 75, the threshold for ENERGY STAR certification. 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. 730 Polk Street's 75.7 kBtu/ft² across 57,649 sq ft works out to about 4.4 billion Btu (1,279 MWh-equivalent) in 2018. The disclosure also reports 856,283 kWh of electricity and 14,440 therms of natural gas for the year.
Which law requires 730 Polk Street to report its energy use?
730 Polk Street 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 2018 disclosure (source record california:6320002:2018). 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 office buildings in California
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- 7000 Romaine· 57,595 sq ft · score 100 (A)
- Ca2431 - Viewridge Court Ii· 57,594 sq ft · score 100 (A)
- 145 Rio Robles Dr - Opi· 57,586 sq ft · EUI 66.5 kBtu/ft²
- Control Tower· 57,550 sq ft · score 31 (D)
- Rtc | 1383 N. Mcdowell Blvd· 57,546 sq ft · EUI 39.2 kBtu/ft²
- Office buildings in California· 6,214 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 730 Polk Street's energy grade?
730 Polk Street scores 31 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2018 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 730 Polk Street use?
Its 2018 site energy-use intensity was 75.7 kBtu/ft² across 57,649 sq ft, including 856,283 kWh of electricity and 14,440 therms of natural gas.
What are 730 Polk Street's carbon emissions?
730 Polk Street reported 283 tCO₂e of greenhouse-gas emissions (4.9 kgCO₂e/ft²) for 2018.
Where is 730 Polk Street?
730 Polk Street is at 730 Polk Street, San Francisco, in San Francisco, California 94109. Its coordinates are 37.78363, -122.41928 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 730 Polk Street and when was it built?
730 Polk Street has 57,649 sq ft of gross floor area, as reported in its 2018 disclosure. The disclosure lists 1922 as its year built. It is classed as office.
Is 730 Polk Street covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2018 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, “730 Polk Street, San Francisco, California — 2018 benchmarking disclosure”, https://buildingcensus.com/buildings/california/730-polk-street-121cc146 (data as of July 9, 2026).