Seaker & Sons
Commercial in San Francisco, CA · 135 POST ST · 94108
At a glance
Seaker & Sons is a 66,964-square-foot commercial building at 135 POST ST in San Francisco, California, built in 1908. 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 2024, when it scored 100 out of 100 on ENERGY STAR with a site EUI of 7.6 kBtu/ft².
No energy data reported for 2025
Seaker & Sons 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: 66,964 sq ft · Built 1908
Source record sf:0310/021:2025
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | — | — | |
| 2024 | 100 | ±0 | 7.6 kBtu/ft² | 34 tCO₂e |
| 2023 | 100 | 17.2 kBtu/ft² | 70 tCO₂e | |
| 2022 | — | 36.5 kBtu/ft² | 163 tCO₂e | |
| 2021 | — | 14.3 kBtu/ft² | 67 tCO₂e | |
| 2020 | — | 25.6 kBtu/ft² | 112 tCO₂e | |
| 2019 | 81 | +31 | 40.8 kBtu/ft² | 193 tCO₂e |
| 2018 | 50 | -10 | 48.0 kBtu/ft² | 249 tCO₂e |
| 2017 | 60 | +23 | 58.7 kBtu/ft² | 320 tCO₂e |
| 2016 | 37 | +13 | 83.9 kBtu/ft² | 485 tCO₂e |
| 2015 | 24 | +6 | 97.4 kBtu/ft² | 545 tCO₂e |
| 2014 | 18 | -2 | 104.9 kBtu/ft² | 585 tCO₂e |
| 2013 | 20 | 108.3 kBtu/ft² | 594 tCO₂e | |
| 2012 | — | — | — | |
| 2011 | 13 | 94.0 kBtu/ft² | 575 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
- 135 POST ST
- City
- San Francisco
- State
- California
- ZIP
- 94108
- Coordinates
- 37.78855, -122.40428
Within ~1 km
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See also: most efficient in San Francisco · biggest emitters
How has Seaker & Sons's energy performance changed over time?
BuildingCensus holds 15 San Francisco disclosures for Seaker & Sons, covering report years 2011–2025. Its ENERGY STAR score went from 13 in 2011 to 100 in 2024 (+87 points); its best year on file was 2023, at 100. Site EUI moved from 94.0 kBtu/ft² (2011) to 7.6 kBtu/ft² (2024), a 92% decrease. Reported emissions went from 575 tCO₂e to 34 tCO₂e over the same span (down 94%).
Which law requires Seaker & Sons to report its energy use?
Seaker & Sons 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:0310/021:2025). 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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- 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
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Frequently asked questions
What is Seaker & Sons's energy grade?
Seaker & Sons 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 Seaker & Sons?
Seaker & Sons is at 135 POST ST, in San Francisco, California 94108. Its coordinates are 37.78855, -122.40428 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
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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, “Seaker & Sons, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/seaker-sons-48686f11 (data as of October 2, 2026).