434 Brannan
Commercial in San Francisco, CA · 434 BRANNAN ST · 94107
At a glance
434 Brannan is a 25,000-square-foot commercial building at 434 BRANNAN ST in San Francisco, California, built in 1929. In its 2025 San Francisco benchmarking disclosure it reported a site energy-use intensity of 30.9 kBtu/ft² and 43 tCO₂e of greenhouse-gas emissions.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 30.9 kBtu/ft² |
| Source EUI | 69.5 kBtu/ft² |
| GHG emissions | 43 tCO₂e |
| GHG intensity | 1.7 kgCO₂e/ft² |
| Electricity | 155,077 kWh |
| Natural gas | 2,445 therms |
| Gross floor area | 25,000 sq ft |
| Source record | sf:3776/151:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 30.9 kBtu/ft² | 43 tCO₂e | |
| 2024 | — | 31.6 kBtu/ft² | 50 tCO₂e | |
| 2023 | — | 26.4 kBtu/ft² | 42 tCO₂e | |
| 2022 | — | 46.3 kBtu/ft² | 77 tCO₂e | |
| 2021 | 81 | 38.7 kBtu/ft² | 56 tCO₂e | |
| 2020 | — | 37.6 kBtu/ft² | 59 tCO₂e | |
| 2019 | 69 | +3 | 46.6 kBtu/ft² | 78 tCO₂e |
| 2018 | 66 | -17 | 45.9 kBtu/ft² | 77 tCO₂e |
| 2017 | 83 | -10 | 41.5 kBtu/ft² | 73 tCO₂e |
| 2016 | 93 | ±0 | 31.7 kBtu/ft² | 62 tCO₂e |
| 2015 | 93 | -2 | 32.1 kBtu/ft² | 60 tCO₂e |
| 2014 | 95 | +4 | 28.2 kBtu/ft² | 53 tCO₂e |
| 2013 | 91 | 37.4 kBtu/ft² | 67 tCO₂e | |
| 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 434 BRANNAN ST
- City
- San Francisco
- State
- California
- ZIP
- 94107
- Coordinates
- 37.77965, -122.39548
Within ~1 km
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See also: most efficient in San Francisco · biggest emitters
How does 434 Brannan 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 30.9 kBtu/ft² is about 37% below 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 1.7 kgCO₂e/ft² is about 36% below the group average of 2.7 kgCO₂e/ft².
At 25,000 sq ft, it is about 77% below the average floor area of 107,408 sq ft for those buildings. It was built in 1929, 12 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 434 Brannan's energy performance changed over time?
BuildingCensus holds 15 San Francisco disclosures for 434 Brannan, covering report years 2011–2025. Its ENERGY STAR score went from 91 in 2013 to 81 in 2021 (-10 points); its best year on file was 2014, at 95. Site EUI moved from 37.4 kBtu/ft² (2013) to 30.9 kBtu/ft² (2025), a 17% decrease. Reported emissions went from 67 tCO₂e to 43 tCO₂e over the same span (down 36%).
What does a site EUI of 30.9 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. 434 Brannan's 30.9 kBtu/ft² across 25,000 sq ft works out to about 0.8 billion Btu (226 MWh-equivalent) in 2025. Its source EUI of 69.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 155,077 kWh of electricity and 2,445 therms of natural gas for the year.
Which law requires 434 Brannan to report its energy use?
434 Brannan 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:3776/151:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
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Frequently asked questions
What is 434 Brannan's energy grade?
434 Brannan did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 30.9 kBtu/ft².
How much energy does 434 Brannan use?
Its 2025 site energy-use intensity was 30.9 kBtu/ft² (69.5 kBtu/ft² source) across 25,000 sq ft, including 155,077 kWh of electricity and 2,445 therms of natural gas.
What are 434 Brannan's carbon emissions?
434 Brannan reported 43 tCO₂e of greenhouse-gas emissions (1.7 kgCO₂e/ft²) for 2025.
Where is 434 Brannan?
434 Brannan is at 434 BRANNAN ST, in San Francisco, California 94107. Its coordinates are 37.77965, -122.39548 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is 434 Brannan and when was it built?
434 Brannan has 25,000 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1929 as its year built. It is classed as commercial.
Is 434 Brannan 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, “434 Brannan, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/434-brannan-67c84707 (data as of October 2, 2026).