420 MAIN ST
Mixed Residential in San Francisco, CA · 94105
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 91 (band A) |
| Site EUI | 43.4 kBtu/ft² |
| Source EUI | 87.1 kBtu/ft² |
| GHG emissions | 414 tCO₂e |
| GHG intensity | 2.4 kgCO₂e/ft² |
| Electricity | 1,197,666 kWh |
| Natural gas | 33,941 therms |
| Gross floor area | 172,376 sq ft |
| Source record | sf:3767/014:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 91 | +2 | 43.4 kBtu/ft² | 414 tCO₂e |
| 2024 | 89 | +2 | 43.7 kBtu/ft² | 456 tCO₂e |
| 2023 | 87 | +4 | 44.5 kBtu/ft² | 489 tCO₂e |
| 2022 | 83 | 46.2 kBtu/ft² | 497 tCO₂e | |
| 2021 | — | 41.0 kBtu/ft² | 407 tCO₂e | |
| 2020 | — | 46.3 kBtu/ft² | 459 tCO₂e | |
| 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.
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Location
- Address
- 420 MAIN ST
- City
- San Francisco
- State
- California
- ZIP
- 94105
- Coordinates
- 37.78759, -122.39047
Within ~1 km
Nearby benchmarked buildings
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- One Market Plazascore 79
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- Pge01195 - San Francisco Market - United Statesscore 100
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- Pge-Go Complex 102_245M_77Blscore 72
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- Salesforce Towerscore 95
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See also: most efficient in San Francisco · biggest emitters
Frequently asked questions
What is 420 MAIN ST's energy grade?
420 MAIN ST scores 91 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 420 MAIN ST use?
Its 2025 site energy-use intensity was 43.4 kBtu/ft² (87.1 kBtu/ft² source) across 172,376 sq ft, including 1,197,666 kWh of electricity and 33,941 therms of natural gas.
What are 420 MAIN ST's carbon emissions?
420 MAIN ST reported 414 tCO₂e of greenhouse-gas emissions (2.4 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.
Dataset updated . Source: Existing Buildings Energy Performance Ordinance disclosure, record sf:3767/014:2025.