Tower 737 (aka Post St Towers)
Multifamily in San Francisco, CA · 644 Geary St · 94109
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 30.2 kBtu/ft² |
| Source EUI | 60.0 kBtu/ft² |
| GHG emissions | 217 tCO₂e |
| GHG intensity | 1.7 kgCO₂e/ft² |
| Electricity | 614,957 kWh |
| Natural gas | 18,338 therms |
| Gross floor area | 216,891 sq ft |
| Source record | sf:0304/020:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 100 | ±0 | 30.2 kBtu/ft² | 217 tCO₂e |
| 2024 | 100 | ±0 | 28.9 kBtu/ft² | 227 tCO₂e |
| 2023 | 100 | ±0 | 29.2 kBtu/ft² | 239 tCO₂e |
| 2022 | 100 | 31.6 kBtu/ft² | 228 tCO₂e | |
| 2021 | — | 28.8 kBtu/ft² | 193 tCO₂e | |
| 2020 | — | 56.6 kBtu/ft² | 389 tCO₂e | |
| 2019 | 79 | +4 | 58.1 kBtu/ft² | 397 tCO₂e |
| 2018 | 75 | 61.0 kBtu/ft² | 464 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.
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Location
- Address
- 644 Geary St
- City
- San Francisco
- State
- California
- ZIP
- 94109
- Coordinates
- 37.78705, -122.41403
Within ~1 km
Nearby benchmarked buildings
- Hilton San Francisco Union Square (San Franciscoofh)score —
Hotel · 1,964,250 sq ft
Commercial · 1,964,250 sq ft
- Hilton San Francisco Union Square (Sfofh)score 89
Hotel · 1,964,250 sq ft
- Westin St. Francis Hotelscore 100
Commercial · 1,315,996 sq ft
- 84Sch - Westin St. Francisscore 97
Hotel · 1,248,492 sq ft
- The Westin St. Francisscore 51
Hotel · 1,183,542 sq ft
See also: most efficient in San Francisco · biggest emitters
Frequently asked questions
What is Tower 737 (aka Post St Towers)'s energy grade?
Tower 737 (aka Post St Towers) scores 100 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 Tower 737 (aka Post St Towers) use?
Its 2025 site energy-use intensity was 30.2 kBtu/ft² (60.0 kBtu/ft² source) across 216,891 sq ft, including 614,957 kWh of electricity and 18,338 therms of natural gas.
What are Tower 737 (aka Post St Towers)'s carbon emissions?
Tower 737 (aka Post St Towers) reported 217 tCO₂e of greenhouse-gas emissions (1.7 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:0304/020:2025.