450 Sansome Street
Commercial in San Francisco, CA · 450 SANSOME ST · 94111
At a glance
450 Sansome Street is a 146,611-square-foot commercial building at 450 SANSOME ST in San Francisco, California, built in 1967. 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 88 out of 100 on ENERGY STAR with a site EUI of 43.2 kBtu/ft².
No energy data reported for 2025
450 Sansome Street 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: 146,611 sq ft · Built 1967
Source record sf:0229/018:2025
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | — | — | |
| 2024 | — | — | — | |
| 2023 | 88 | -1 | 43.2 kBtu/ft² | 370 tCO₂e |
| 2022 | 89 | +9 | 29.8 kBtu/ft² | 282 tCO₂e |
| 2021 | 80 | 50.0 kBtu/ft² | 393 tCO₂e | |
| 2020 | — | 48.6 kBtu/ft² | 413 tCO₂e | |
| 2019 | 72 | -3 | 71.0 kBtu/ft² | 616 tCO₂e |
| 2018 | 75 | -18 | 69.9 kBtu/ft² | 633 tCO₂e |
| 2017 | 93 | +2 | 46.0 kBtu/ft² | 466 tCO₂e |
| 2016 | 91 | +2 | 51.6 kBtu/ft² | 576 tCO₂e |
| 2015 | 89 | +1 | 55.8 kBtu/ft² | 579 tCO₂e |
| 2014 | 88 | 54.6 kBtu/ft² | 562 tCO₂e | |
| 2013 | — | — | — | |
| 2012 | 90 | +10 | 66.0 kBtu/ft² | 708 tCO₂e |
| 2011 | 80 | 80.8 kBtu/ft² | 873 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
- 450 SANSOME ST
- City
- San Francisco
- State
- California
- ZIP
- 94111
- Coordinates
- 37.79464, -122.40114
Within ~1 km
Nearby benchmarked buildings
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- One Market Plazascore 80
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- 555 California Streetscore 76
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- 500 BATTERY STscore —
Mixed Residential · 1,779,579 sq ft
See also: most efficient in San Francisco · biggest emitters
How has 450 Sansome Street's energy performance changed over time?
BuildingCensus holds 15 San Francisco disclosures for 450 Sansome Street, covering report years 2011–2025. Its ENERGY STAR score went from 80 in 2011 to 88 in 2023 (+8 points); its best year on file was 2017, at 93. Site EUI moved from 80.8 kBtu/ft² (2011) to 43.2 kBtu/ft² (2023), a 47% decrease. Reported emissions went from 873 tCO₂e to 370 tCO₂e over the same span (down 58%).
Which law requires 450 Sansome Street to report its energy use?
450 Sansome Street 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:0229/018:2025). 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 450 Sansome Street's energy grade?
450 Sansome Street 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 450 Sansome Street?
450 Sansome Street is at 450 SANSOME ST, in San Francisco, California 94111. Its coordinates are 37.79464, -122.40114 (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, “450 Sansome Street, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/450-sansome-street-3a9ba579 (data as of October 2, 2026).