71428A (UNION SQUARE MAIN)
Commercial in San Francisco, CA · 170 O'FARRELL ST · 94102
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 47 (band D) |
| Site EUI | 47.2 kBtu/ft² |
| Source EUI | 106.8 kBtu/ft² |
| GHG emissions | 2,434 tCO₂e |
| GHG intensity | 2.6 kgCO₂e/ft² |
| Electricity | 8,848,240 kWh |
| Natural gas | 133,276 therms |
| Gross floor area | 922,758 sq ft |
| Source record | sf:0314/018:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 47 | -17 | 47.2 kBtu/ft² | 2,434 tCO₂e |
| 2024 | 64 | -5 | 43.4 kBtu/ft² | 2,547 tCO₂e |
| 2023 | 69 | +1 | 42.7 kBtu/ft² | 2,616 tCO₂e |
| 2022 | 68 | +2 | 42.5 kBtu/ft² | 2,550 tCO₂e |
| 2021 | 66 | 41.7 kBtu/ft² | 2,240 tCO₂e | |
| 2020 | — | 35.3 kBtu/ft² | 2,060 tCO₂e | |
| 2019 | — | — | — | |
| 2018 | 36 | -35 | 62.7 kBtu/ft² | 3,803 tCO₂e |
| 2017 | 71 | +4 | 62.8 kBtu/ft² | 4,059 tCO₂e |
| 2016 | 67 | +1 | 65.3 kBtu/ft² | 4,724 tCO₂e |
| 2015 | 66 | +3 | 67.5 kBtu/ft² | 4,638 tCO₂e |
| 2014 | 63 | -4 | 70.5 kBtu/ft² | 4,811 tCO₂e |
| 2013 | 67 | ±0 | 69.0 kBtu/ft² | 4,977 tCO₂e |
| 2012 | 67 | -2 | 72.1 kBtu/ft² | 5,287 tCO₂e |
| 2011 | 69 | 68.0 kBtu/ft² | 5,073 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
- 170 O'FARRELL ST
- City
- San Francisco
- State
- California
- ZIP
- 94102
- Coordinates
- 37.78700, -122.40717
Within ~1 km
Nearby benchmarked buildings
- 555 Californiascore 75
Commercial · 1,968,807 sq ft
- Hilton San Francisco Union Square (San Franciscoofh)score —
Hotel · 1,964,250 sq ft
- Hilton San Francisco Union Square (Sfofh)score 89
Hotel · 1,964,250 sq ft
Commercial · 1,964,250 sq ft
- 555 California Streetscore 76
Office · 1,810,397 sq ft
Commercial · 1,684,713 sq ft
See also: most efficient in San Francisco · biggest emitters
Frequently asked questions
What is 71428A (UNION SQUARE MAIN)'s energy grade?
71428A (UNION SQUARE MAIN) scores 47 out of 100 on ENERGY STAR — band D (Lowest band (1–54)) — in its 2025 San Francisco disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 71428A (UNION SQUARE MAIN) use?
Its 2025 site energy-use intensity was 47.2 kBtu/ft² (106.8 kBtu/ft² source) across 922,758 sq ft, including 8,848,240 kWh of electricity and 133,276 therms of natural gas.
What are 71428A (UNION SQUARE MAIN)'s carbon emissions?
71428A (UNION SQUARE MAIN) reported 2,434 tCO₂e of greenhouse-gas emissions (2.6 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:0314/018:2025.