3320 20TH ST
Commercial in San Francisco, CA · 94110
At a glance
3320 20TH ST is a 31,274-square-foot commercial building in San Francisco, California, built in 1920. In its 2025 San Francisco benchmarking disclosure it reported a site energy-use intensity of 44.7 kBtu/ft² and 76 tCO₂e of greenhouse-gas emissions.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 44.7 kBtu/ft² |
| Source EUI | 70.1 kBtu/ft² |
| GHG emissions | 76 tCO₂e |
| GHG intensity | 2.4 kgCO₂e/ft² |
| Electricity | 121,458 kWh |
| Natural gas | 9,841 therms |
| Gross floor area | 31,274 sq ft |
| Source record | sf:3594/011:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 44.7 kBtu/ft² | 76 tCO₂e | |
| 2024 | — | 35.3 kBtu/ft² | 60 tCO₂e | |
| 2023 | — | — | — | |
| 2022 | — | — | — | |
| 2021 | — | — | — | |
| 2020 | — | — | — | |
| 2019 | — | — | — | |
| 2018 | — | — | — | |
| 2017 | — | — | — | |
| 2016 | — | — | — | |
| 2015 | — | — | — | |
| 2014 | — | — | — | |
| 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
- 3320 20TH ST
- City
- San Francisco
- State
- California
- ZIP
- 94110
- Coordinates
- 37.75908, -122.41527
Within ~1 km
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See also: most efficient in San Francisco · biggest emitters
How does 3320 20TH ST 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. Its site EUI of 44.7 kBtu/ft² is roughly in line with 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 2.4 kgCO₂e/ft² is about 10% below the group average of 2.7 kgCO₂e/ft².
At 31,274 sq ft, it is about 71% below the average floor area of 107,408 sq ft for those buildings. It was built in 1920, 21 years earlier 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 3320 20TH ST's energy performance changed over time?
BuildingCensus holds 15 San Francisco disclosures for 3320 20TH ST, covering report years 2011–2025. Site EUI moved from 35.3 kBtu/ft² (2024) to 44.7 kBtu/ft² (2025), an 27% increase. Reported emissions went from 60 tCO₂e to 76 tCO₂e over the same span (up 27%).
What does a site EUI of 44.7 kBtu/ft² mean?
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. 3320 20TH ST's 44.7 kBtu/ft² across 31,274 sq ft works out to about 1.4 billion Btu (410 MWh-equivalent) in 2025. Its source EUI of 70.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 121,458 kWh of electricity and 9,841 therms of natural gas for the year.
Which law requires 3320 20TH ST to report its energy use?
3320 20TH ST 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:3594/011:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
More commercial buildings in San Francisco
- Herba Enterprises· 31,250 sq ft · score 90 (A)
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- 1621 MARKET ST· 31,000 sq ft · score 75 (B)
- 1244 Sutter, LLC· 30,964 sq ft · score 100 (A)
- 540-Stephens Institute· 30,900 sq ft
- 501 Folsom Street LLC· 30,750 sq ft · EUI 21.9 kBtu/ft²
- Commercial buildings in San Francisco· 1,683 benchmarked
- All San Francisco benchmarked buildings· SF Environment Code Chapter 20
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Frequently asked questions
What is 3320 20TH ST's energy grade?
3320 20TH ST did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 44.7 kBtu/ft².
How much energy does 3320 20TH ST use?
Its 2025 site energy-use intensity was 44.7 kBtu/ft² (70.1 kBtu/ft² source) across 31,274 sq ft, including 121,458 kWh of electricity and 9,841 therms of natural gas.
What are 3320 20TH ST's carbon emissions?
3320 20TH ST reported 76 tCO₂e of greenhouse-gas emissions (2.4 kgCO₂e/ft²) for 2025.
Where is 3320 20TH ST?
3320 20TH ST is in San Francisco, California 94110. Its coordinates are 37.75908, -122.41527 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is 3320 20TH ST and when was it built?
3320 20TH ST has 31,274 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1920 as its year built. It is classed as commercial.
Is 3320 20TH ST 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, “3320 20TH ST, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/3320-20th-st-a61a692b (data as of October 2, 2026).