One Sansome Street
Commercial in San Francisco, CA · 1 SANSOME ST · 94104
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 85 (band A) |
| Site EUI | 35.4 kBtu/ft² |
| Source EUI | 72.1 kBtu/ft² |
| GHG emissions | 1,596 tCO₂e |
| GHG intensity | 2.2 kgCO₂e/ft² |
| Electricity | 4,027,284 kWh |
| Natural gas | 9,240 therms |
| Gross floor area | 738,880 sq ft |
| Source record | sf:0289/003:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 85 | -2 | 35.4 kBtu/ft² | 1,596 tCO₂e |
| 2024 | 87 | -4 | 36.5 kBtu/ft² | 1,780 tCO₂e |
| 2023 | 91 | -1 | 33.6 kBtu/ft² | 1,710 tCO₂e |
| 2022 | 92 | 36.8 kBtu/ft² | 1,839 tCO₂e | |
| 2021 | — | 36.9 kBtu/ft² | 1,721 tCO₂e | |
| 2020 | — | 35.5 kBtu/ft² | 1,738 tCO₂e | |
| 2019 | 89 | +1 | 47.5 kBtu/ft² | 2,328 tCO₂e |
| 2018 | 88 | -4 | 47.0 kBtu/ft² | 2,395 tCO₂e |
| 2017 | 92 | 50.0 kBtu/ft² | 2,680 tCO₂e | |
| 2016 | — | — | — | |
| 2015 | 93 | ±0 | 45.4 kBtu/ft² | 2,731 tCO₂e |
| 2014 | 93 | -1 | 47.0 kBtu/ft² | 2,685 tCO₂e |
| 2013 | 94 | ±0 | 41.9 kBtu/ft² | 2,718 tCO₂e |
| 2012 | 94 | ±0 | 41.2 kBtu/ft² | 2,660 tCO₂e |
| 2011 | 94 | 41.3 kBtu/ft² | 2,614 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 owner listed in the disclosure.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 1 SANSOME ST
- City
- San Francisco
- State
- California
- ZIP
- 94104
- Coordinates
- 37.79049, -122.40094
Within ~1 km
Nearby benchmarked buildings
- 555 Californiascore 75
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- PGE-GO Complexscore —
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- One Market Plazascore 80
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- One Market Plazascore 79
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- 555 California Streetscore 76
Office · 1,810,397 sq ft
- 500 BATTERY STscore —
Mixed Residential · 1,779,579 sq ft
See also: most efficient in San Francisco · biggest emitters
Frequently asked questions
What is One Sansome Street's energy grade?
One Sansome Street scores 85 out of 100 on ENERGY STAR — band A (High performer (85–100)) — in its 2025 San Francisco disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does One Sansome Street use?
Its 2025 site energy-use intensity was 35.4 kBtu/ft² (72.1 kBtu/ft² source) across 738,880 sq ft, including 4,027,284 kWh of electricity and 9,240 therms of natural gas.
What are One Sansome Street's carbon emissions?
One Sansome Street reported 1,596 tCO₂e of greenhouse-gas emissions (2.2 kgCO₂e/ft²) for 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.
Dataset updated . Source: Existing Buildings Energy Performance Ordinance disclosure, record sf:0289/003:2025.