345 Brannan Street
Office in California, CA · 345 Brannan Street, San Francisco · 94107
At a glance
345 Brannan Street is a 110,050-square-foot office building at 345 Brannan Street, San Francisco in San Francisco, California, built in 2014. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 94 out of 100 (grade A), a site energy-use intensity of 20.5 kBtu/ft² and 150 tCO₂e of greenhouse-gas emissions. That score is higher than 75% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 94 (band A) |
| Site EUI | 20.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 150 tCO₂e |
| GHG intensity | 1.4 kgCO₂e/ft² |
| Electricity | 655,928 kWh |
| Natural gas | 211 therms |
| Gross floor area | 110,050 sq ft |
| Source record | california:6716650:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 94 | +9 | 20.5 kBtu/ft² | 150 tCO₂e |
| 2023 | 85 | +1 | 43.5 kBtu/ft² | 339 tCO₂e |
| 2022 | 84 | -3 | 40.2 kBtu/ft² | 303 tCO₂e |
| 2021 | 87 | -9 | 34.1 kBtu/ft² | 225 tCO₂e |
| 2020 | 96 | +4 | 32.5 kBtu/ft² | 237 tCO₂e |
| 2019 | 92 | +7 | 41.1 kBtu/ft² | 318 tCO₂e |
| 2018 | 85 | 46.4 kBtu/ft² | 359 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 345 Brannan Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94107
- Coordinates
- 37.78100, -122.39291
Within ~1 km
Nearby benchmarked buildings
- Lumina Ownersscore 100
Multifamily Housing · 1,400,000 sq ft
- At&T Parkscore —
Stadium (Open) · 1,230,000 sq ft
- China Basinscore —
Commercial · 1,218,533 sq ft
- 238 KING STscore —
Mixed Residential · 1,212,969 sq ft
Multifamily Housing · 1,102,810 sq ft
- 203 Folsom Stscore 97
Mixed Residential · 1,102,810 sq ft
See also: most efficient in California · biggest emitters
How does 345 Brannan Street compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 345 Brannan Street's ENERGY STAR score of 94 compares with an average of 75 across the 4,912 that report a score; it scores higher than 75% of them and lower than 22%. Its site EUI of 20.5 kBtu/ft² is about 64% below 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 1.4 kgCO₂e/ft² is about 62% below the group average of 3.6 kgCO₂e/ft².
At 110,050 sq ft, it is about 28% below the average floor area of 151,937 sq ft for those buildings. It was built in 2014, 29 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 345 Brannan Street's energy performance changed over time?
BuildingCensus holds 7 California disclosures for 345 Brannan Street, covering report years 2018–2024. Its ENERGY STAR score went from 85 in 2018 to 94 in 2024 (+9 points); its best year on file was 2020, at 96. Site EUI moved from 46.4 kBtu/ft² (2018) to 20.5 kBtu/ft² (2024), a 56% decrease. Reported emissions went from 359 tCO₂e to 150 tCO₂e over the same span (down 58%).
What does an ENERGY STAR score of 94 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 94 means the building performs better than about 94% of its national peers. BuildingCensus bands the score into report-card grades; 94 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. 345 Brannan Street's 20.5 kBtu/ft² across 110,050 sq ft works out to about 2.3 billion Btu (661 MWh-equivalent) in 2024. The disclosure also reports 655,928 kWh of electricity and 211 therms of natural gas for the year.
Which law requires 345 Brannan Street to report its energy use?
345 Brannan 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 2024 disclosure (source record california:6716650:2024). 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
- 9410 Carroll Park· 110,041 sq ft · score 24 (D)
- Clearview Business Park D· 110,000 sq ft · score 99 (A)
- Capitol Records· 110,000 sq ft
- Brooke Ault· 110,000 sq ft · EUI 78.5 kBtu/ft²
- 9800, 9800 Sepulveda Blvd, Los Angeles· 110,000 sq ft
- Ssa/Orangewood· 110,000 sq ft · score 94 (A)
- 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 345 Brannan Street's energy grade?
345 Brannan Street scores 94 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 345 Brannan Street use?
Its 2024 site energy-use intensity was 20.5 kBtu/ft² across 110,050 sq ft, including 655,928 kWh of electricity and 211 therms of natural gas.
What are 345 Brannan Street's carbon emissions?
345 Brannan Street reported 150 tCO₂e of greenhouse-gas emissions (1.4 kgCO₂e/ft²) for 2024.
Where is 345 Brannan Street?
345 Brannan Street is at 345 Brannan Street, San Francisco, in San Francisco, California 94107. Its coordinates are 37.78100, -122.39291 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 345 Brannan Street and when was it built?
345 Brannan Street has 110,050 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2014 as its year built. It is classed as office.
Is 345 Brannan Street covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2024 Building Energy Benchmarking Program (statewide) disclosure, which lists the buildings reporting under AB 802 (Public Resources Code §25402.10).
Working with California building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “345 Brannan Street, San Francisco, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/345-brannan-street-76f6c9bc (data as of July 9, 2026).