Byer California - 66 Potrero Ave.
Commercial in San Francisco, CA · 66 POTRERO AVE · 94103
At a glance
Byer California - 66 Potrero Ave. is a 162,478-square-foot commercial building at 66 POTRERO AVE in San Francisco, California, built in 1956. It is listed in the 2025 Existing Buildings Energy Performance Ordinance disclosure without energy figures: no ENERGY STAR score, energy use or emissions were published for it that year. Its most recent reported figures are from 2023, when it scored 91 out of 100 on ENERGY STAR with a site EUI of 17.5 kBtu/ft².
No energy data reported for 2025
Byer California - 66 Potrero Ave. appears in the 2025 Existing Buildings Energy Performance Ordinance disclosure, but no ENERGY STAR score, energy use or emissions were published for it — the building did not report benchmarking data for that year. Earlier reported years are in the table below.
Floor area on file: 162,478 sq ft · Built 1956
Source record sf:3905/002:2025
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | — | — | |
| 2024 | — | — | — | |
| 2023 | 91 | +2 | 17.5 kBtu/ft² | 172 tCO₂e |
| 2022 | 89 | +6 | 17.8 kBtu/ft² | 181 tCO₂e |
| 2021 | 83 | 21.3 kBtu/ft² | 217 tCO₂e | |
| 2020 | — | 21.5 kBtu/ft² | 203 tCO₂e | |
| 2019 | — | — | — | |
| 2018 | 69 | -16 | 24.7 kBtu/ft² | 272 tCO₂e |
| 2017 | 85 | +12 | 22.7 kBtu/ft² | 266 tCO₂e |
| 2016 | 73 | +4 | 28.0 kBtu/ft² | 374 tCO₂e |
| 2015 | 69 | +2 | 29.4 kBtu/ft² | 371 tCO₂e |
| 2014 | 67 | -2 | 29.8 kBtu/ft² | 376 tCO₂e |
| 2013 | 69 | 31.9 kBtu/ft² | 397 tCO₂e | |
| 2012 | — | 30.1 kBtu/ft² | 456 tCO₂e | |
| 2011 | — | 31.1 kBtu/ft² | 470 tCO₂e |
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
- 66 POTRERO AVE
- City
- San Francisco
- State
- California
- ZIP
- 94103
- Coordinates
- 37.76859, -122.40913
Within ~1 km
Nearby benchmarked buildings
- 650 Townsend - Zyngascore 94
Commercial · 1,029,659 sq ft
- 650 Townsendscore 97
Office · 872,484 sq ft
- 1201 Bryant Streetscore 100
Office · 805,178 sq ft
- 625 08TH STscore —
Multifamily · 641,987 sq ft
- Hall Of Justicescore 39
Office · 634,717 sq ft
- 855 Brannan - 29928score 98
Multifamily Housing · 500,569 sq ft
See also: most efficient in San Francisco · biggest emitters
How has Byer California - 66 Potrero Ave.'s energy performance changed over time?
BuildingCensus holds 15 San Francisco disclosures for Byer California - 66 Potrero Ave., covering report years 2011–2025. Its ENERGY STAR score went from 69 in 2013 to 91 in 2023 (+22 points). Site EUI moved from 31.1 kBtu/ft² (2011) to 17.5 kBtu/ft² (2023), a 44% decrease. Reported emissions went from 470 tCO₂e to 172 tCO₂e over the same span (down 63%).
Which law requires Byer California - 66 Potrero Ave. to report its energy use?
Byer California - 66 Potrero Ave. 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:3905/002:2025). 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
- 450 POST ST· 162,214 sq ft · score 88 (A)
- Oracle Park - 24 Willie Mays Plaza· 160,988 sq ft
- 300 CALIFORNIA ST· 159,479 sq ft · score 96 (A)
- 1155 Market· 158,998 sq ft
- Williams Sonoma - 3250 Van Ness· 158,360 sq ft · score 77 (B)
- 60 Spear· 157,436 sq ft
- Commercial buildings in San Francisco· 1,683 benchmarked
- All San Francisco benchmarked buildings· SF Environment Code Chapter 20
- Most efficient large buildings in San Francisco
- Least efficient large buildings in San Francisco
- Biggest emitters in San Francisco
Frequently asked questions
What is Byer California - 66 Potrero Ave.'s energy grade?
Byer California - 66 Potrero Ave. has no grade: it did not report energy data for 2025. The 2025 Existing Buildings Energy Performance Ordinance disclosure lists the building but publishes no ENERGY STAR score, energy use or emissions for it.
Where is Byer California - 66 Potrero Ave.?
Byer California - 66 Potrero Ave. is at 66 POTRERO AVE, in San Francisco, California 94103. Its coordinates are 37.76859, -122.40913 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
Working with San Francisco 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: 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, “Byer California - 66 Potrero Ave., San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/byer-california-66-potrero-ave-1af9c75c (data as of October 2, 2026).