1150 UNION ST
Mixed Residential in San Francisco, CA · 94109
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 57 (band C) |
| Site EUI | 53.6 kBtu/ft² |
| Source EUI | 70.7 kBtu/ft² |
| GHG emissions | 178 tCO₂e |
| GHG intensity | 2.9 kgCO₂e/ft² |
| Electricity | 148,486 kWh |
| Natural gas | 27,993 therms |
| Gross floor area | 61,657 sq ft |
| Source record | sf:0097/013:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 57 | +14 | 53.6 kBtu/ft² | 178 tCO₂e |
| 2024 | 43 | +18 | 59.1 kBtu/ft² | 201 tCO₂e |
| 2023 | 25 | -4 | 70.0 kBtu/ft² | 239 tCO₂e |
| 2022 | 29 | 67.9 kBtu/ft² | 231 tCO₂e | |
| 2021 | — | 67.7 kBtu/ft² | 231 tCO₂e | |
| 2020 | — | — | — | |
| 2019 | — | — | — | |
| 2018 | — | — | — |
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
- 1150 UNION ST
- City
- San Francisco
- State
- California
- ZIP
- 94109
- Coordinates
- 37.79954, -122.41840
Within ~1 km
Nearby benchmarked buildings
- 1300 CLAY STscore —
Mixed Residential · 477,734 sq ft
- 211 BEACH STscore 98
Commercial · 405,000 sq ft
- 260 BAY STscore 100
Mixed Residential · 398,046 sq ft
- 999 Green Streetscore 94
Multifamily Housing · 381,255 sq ft
- 999 GREEN STscore —
Mixed Residential · 381,255 sq ft
- Intercontinental Mark Hopkinsscore 100
Hotel · 360,588 sq ft
See also: most efficient in San Francisco · biggest emitters
Frequently asked questions
What is 1150 UNION ST's energy grade?
1150 UNION ST scores 57 out of 100 on ENERGY STAR — band C (Below median (55–69)) — in its 2025 San Francisco disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1150 UNION ST use?
Its 2025 site energy-use intensity was 53.6 kBtu/ft² (70.7 kBtu/ft² source) across 61,657 sq ft, including 148,486 kWh of electricity and 27,993 therms of natural gas.
What are 1150 UNION ST's carbon emissions?
1150 UNION ST reported 178 tCO₂e of greenhouse-gas emissions (2.9 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:0097/013:2025.