300 MASON ST
Mixed Residential in San Francisco, CA · 94102
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 62.1 kBtu/ft² |
| Source EUI | 94.7 kBtu/ft² |
| GHG emissions | 170 tCO₂e |
| GHG intensity | 3.4 kgCO₂e/ft² |
| Electricity | 249,622 kWh |
| Natural gas | 22,881 therms |
| Gross floor area | 50,542 sq ft |
| Source record | sf:0315/016:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 62.1 kBtu/ft² | 170 tCO₂e | |
| 2024 | — | 61.7 kBtu/ft² | 177 tCO₂e | |
| 2023 | — | 59.0 kBtu/ft² | 174 tCO₂e | |
| 2022 | — | 70.9 kBtu/ft² | 205 tCO₂e | |
| 2021 | — | 45.4 kBtu/ft² | 134 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 owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 300 MASON ST
- City
- San Francisco
- State
- California
- ZIP
- 94102
- Coordinates
- 37.78650, -122.40952
Within ~1 km
Nearby benchmarked buildings
- 555 Californiascore 75
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Hotel · 1,964,250 sq ft
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- 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 300 MASON ST's energy grade?
300 MASON ST did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 62.1 kBtu/ft².
How much energy does 300 MASON ST use?
Its 2025 site energy-use intensity was 62.1 kBtu/ft² (94.7 kBtu/ft² source) across 50,542 sq ft, including 249,622 kWh of electricity and 22,881 therms of natural gas.
What are 300 MASON ST's carbon emissions?
300 MASON ST reported 170 tCO₂e of greenhouse-gas emissions (3.4 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.
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Dataset updated . Source: Existing Buildings Energy Performance Ordinance disclosure, record sf:0315/016:2025.