510 Townsend Street
Office in California, CA · 510 Townsend Street, San Francisco · 94103
At a glance
510 Townsend Street is a 295,333-square-foot office building at 510 Townsend Street, San Francisco in San Francisco, California, built in 2017. In its 2021 California benchmarking disclosure it reported an ENERGY STAR score of 87 out of 100 (grade A), a site energy-use intensity of 27.3 kBtu/ft² and 485 tCO₂e of greenhouse-gas emissions. That score is higher than 56% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2021
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 87 (band A) |
| Site EUI | 27.3 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 485 tCO₂e |
| GHG intensity | 1.6 kgCO₂e/ft² |
| Electricity | 2,243,805 kWh |
| Natural gas | 4,085 therms |
| Gross floor area | 295,333 sq ft |
| Source record | california:6687167:2021 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2021latest | 87 | 27.3 kBtu/ft² | 485 tCO₂e | |
| 2020 | — | 33.5 kBtu/ft² | 646 tCO₂e | |
| 2019 | 78 | 54.2 kBtu/ft² | 1,085 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
- 510 Townsend Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94103
- Coordinates
- 37.77317, -122.39996
Within ~1 km
Nearby benchmarked buildings
- 238 KING STscore —
Mixed Residential · 1,212,969 sq ft
- The Exchangescore 52
Commercial · 1,057,149 sq ft
- 650 Townsend - Zyngascore 94
Commercial · 1,029,659 sq ft
- The Exchangescore 95
Office · 935,878 sq ft
- 650 Townsendscore 97
Office · 872,484 sq ft
- 1800 Owensscore 71
Office · 804,198 sq ft
See also: most efficient in California · biggest emitters
How does 510 Townsend Street compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 510 Townsend Street's ENERGY STAR score of 87 compares with an average of 75 across the 4,912 that report a score; it scores higher than 56% of them and lower than 41%. Its site EUI of 27.3 kBtu/ft² is about half of the average of 56.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.6 kgCO₂e/ft² is about 56% below the group average of 3.6 kgCO₂e/ft².
At 295,333 sq ft, it is about twice the average floor area of 151,937 sq ft for those buildings. It was built in 2017, 32 years later 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.
How has 510 Townsend Street's energy performance changed over time?
BuildingCensus holds 3 California disclosures for 510 Townsend Street, covering report years 2019–2021. Its ENERGY STAR score went from 78 in 2019 to 87 in 2021 (+9 points). Site EUI moved from 54.2 kBtu/ft² (2019) to 27.3 kBtu/ft² (2021), a 50% decrease. Reported emissions went from 1,085 tCO₂e to 485 tCO₂e over the same span (down 55%).
What does an ENERGY STAR score of 87 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 87 means the building performs better than about 87% of its national peers. BuildingCensus bands the score into report-card grades; 87 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. 510 Townsend Street's 27.3 kBtu/ft² across 295,333 sq ft works out to about 8.1 billion Btu (2,363 MWh-equivalent) in 2021. The disclosure also reports 2,243,805 kWh of electricity and 4,085 therms of natural gas for the year.
Which law requires 510 Townsend Street to report its energy use?
510 Townsend 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 2021 disclosure (source record california:6687167:2021). 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
- 301 Edison Civic Center East· 295,215 sq ft · EUI 52.2 kBtu/ft²
- One Hundred Wilshire· 294,924 sq ft · score 70 (B)
- 444 Castro· 294,579 sq ft · score 94 (A)
- Adobe San Francisco - 601 Townsend· 294,203 sq ft · score 83 (B)
- Flood Building· 293,837 sq ft · score 100 (A)
- B303· 293,752 sq ft · score 59 (C)
- 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 510 Townsend Street's energy grade?
510 Townsend Street scores 87 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2021 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 510 Townsend Street use?
Its 2021 site energy-use intensity was 27.3 kBtu/ft² across 295,333 sq ft, including 2,243,805 kWh of electricity and 4,085 therms of natural gas.
What are 510 Townsend Street's carbon emissions?
510 Townsend Street reported 485 tCO₂e of greenhouse-gas emissions (1.6 kgCO₂e/ft²) for 2021.
Where is 510 Townsend Street?
510 Townsend Street is at 510 Townsend Street, San Francisco, in San Francisco, California 94103. Its coordinates are 37.77317, -122.39996 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 510 Townsend Street and when was it built?
510 Townsend Street has 295,333 sq ft of gross floor area, as reported in its 2021 disclosure. The disclosure lists 2017 as its year built. It is classed as office.
Is 510 Townsend Street covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2021 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, “510 Townsend Street, San Francisco, California — 2021 benchmarking disclosure”, https://buildingcensus.com/buildings/california/510-townsend-street-1269ce5a (data as of July 9, 2026).