The Portrero Owner Association
Mixed Residential in San Francisco, CA · 451 Kansas Street · 94107
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 89 (band A) |
| Site EUI | 50.9 kBtu/ft² |
| Source EUI | 103.5 kBtu/ft² |
| GHG emissions | 1,041 tCO₂e |
| GHG intensity | 2.8 kgCO₂e/ft² |
| Electricity | 3,090,647 kWh |
| Natural gas | 82,424 therms |
| Gross floor area | 489,000 sq ft |
| Source record | sf:3978/002:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 89 | +1 | 50.9 kBtu/ft² | 1,041 tCO₂e |
| 2024 | 88 | ±0 | 54.2 kBtu/ft² | 1,204 tCO₂e |
| 2023 | 88 | -2 | 53.2 kBtu/ft² | 1,236 tCO₂e |
| 2022 | 90 | 50.4 kBtu/ft² | 1,153 tCO₂e | |
| 2021 | — | 50.9 kBtu/ft² | 1,160 tCO₂e | |
| 2020 | — | 51.0 kBtu/ft² | 1,137 tCO₂e | |
| 2019 | 94 | 37.7 kBtu/ft² | 934 tCO₂e | |
| 2018 | — | — | — | |
| 2017 | — | — | — | |
| 2016 | — | — | — | |
| 2015 | — | — | — | |
| 2014 | — | — | — | |
| 2013 | — | — | — | |
| 2012 | — | — | — | |
| 2011 | — | — | — |
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
- 451 Kansas Street
- City
- San Francisco
- State
- California
- ZIP
- 94107
- Coordinates
- 37.76411, -122.40299
Within ~1 km
Nearby benchmarked buildings
- 650 Townsend - Zyngascore 94
Commercial · 1,029,659 sq ft
- 650 Townsendscore 97
Office · 872,484 sq ft
- 1201 Bryant Streetscore 100
Office · 805,178 sq ft
- 625 08TH STscore —
Multifamily · 641,987 sq ft
- 1000 16TH STscore 96
Multifamily · 534,441 sq ft
- 855 Brannan - 29928score 98
Multifamily Housing · 500,569 sq ft
See also: most efficient in San Francisco · biggest emitters
Frequently asked questions
What is The Portrero Owner Association's energy grade?
The Portrero Owner Association scores 89 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 The Portrero Owner Association use?
Its 2025 site energy-use intensity was 50.9 kBtu/ft² (103.5 kBtu/ft² source) across 489,000 sq ft, including 3,090,647 kWh of electricity and 82,424 therms of natural gas.
What are The Portrero Owner Association's carbon emissions?
The Portrero Owner Association reported 1,041 tCO₂e of greenhouse-gas emissions (2.8 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:3978/002:2025.