Byer California - 128 King St.
Commercial in San Francisco, CA · 128 KING ST · 94107
At a glance
Byer California - 128 King St. is a 46,500-square-foot commercial building at 128 KING ST in San Francisco, California, built in 1913. In its 2025 San Francisco benchmarking disclosure it reported a site energy-use intensity of 87.3 kBtu/ft² and 227 tCO₂e of greenhouse-gas emissions.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 87.3 kBtu/ft² |
| Source EUI | 200.9 kBtu/ft² |
| GHG emissions | 227 tCO₂e |
| GHG intensity | 4.9 kgCO₂e/ft² |
| Electricity | 850,337 kWh |
| Natural gas | 11,602 therms |
| Gross floor area | 46,500 sq ft |
| Source record | sf:3794/023:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 87.3 kBtu/ft² | 227 tCO₂e | |
| 2024 | — | 69.9 kBtu/ft² | 202 tCO₂e | |
| 2023 | — | 70.5 kBtu/ft² | 204 tCO₂e | |
| 2022 | — | 74.3 kBtu/ft² | 221 tCO₂e | |
| 2021 | — | 37.3 kBtu/ft² | 113 tCO₂e | |
| 2020 | — | 45.2 kBtu/ft² | 124 tCO₂e | |
| 2019 | — | — | — | |
| 2018 | — | 198.0 kBtu/ft² | 560 tCO₂e | |
| 2017 | — | 197.2 kBtu/ft² | 564 tCO₂e | |
| 2016 | — | 228.3 kBtu/ft² | 716 tCO₂e | |
| 2015 | — | 242.6 kBtu/ft² | 734 tCO₂e | |
| 2014 | — | 241.9 kBtu/ft² | 742 tCO₂e | |
| 2013 | — | 242.5 kBtu/ft² | 750 tCO₂e | |
| 2012 | — | 261.4 kBtu/ft² | 817 tCO₂e | |
| 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 owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 128 KING ST
- City
- San Francisco
- State
- California
- ZIP
- 94107
- Coordinates
- 37.77951, -122.39071
Within ~1 km
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See also: most efficient in San Francisco · biggest emitters
How does Byer California - 128 King St. compare with other commercial buildings in San Francisco?
The latest disclosures cover 1,683 commercial buildings in San Francisco, out of 2,509 buildings citywide. Its site EUI of 87.3 kBtu/ft² is about 77% above the average of 49.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 4.9 kgCO₂e/ft² is about 81% above the group average of 2.7 kgCO₂e/ft².
At 46,500 sq ft, it is about 57% below the average floor area of 107,408 sq ft for those buildings. It was built in 1913, 28 years earlier than the group's average year built (1941). Across all 24 jurisdictions BuildingCensus covers, the 2,307 commercial buildings average an ENERGY STAR score of 76 and a site EUI of 51.3 kBtu/ft².
How has Byer California - 128 King St.'s energy performance changed over time?
BuildingCensus holds 15 San Francisco disclosures for Byer California - 128 King St., covering report years 2011–2025. Site EUI moved from 261.4 kBtu/ft² (2012) to 87.3 kBtu/ft² (2025), a 67% decrease. Reported emissions went from 817 tCO₂e to 227 tCO₂e over the same span (down 72%).
What does a site EUI of 87.3 kBtu/ft² mean?
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. Byer California - 128 King St.'s 87.3 kBtu/ft² across 46,500 sq ft works out to about 4.1 billion Btu (1,190 MWh-equivalent) in 2025. Its source EUI of 200.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 850,337 kWh of electricity and 11,602 therms of natural gas for the year.
Which law requires Byer California - 128 King St. to report its energy use?
Byer California - 128 King St. reports under SF Environment Code Chapter 20, the legal basis of San Francisco's Existing Buildings Energy Performance Ordinance, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record sf:3794/023:2025). 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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Frequently asked questions
What is Byer California - 128 King St.'s energy grade?
Byer California - 128 King St. did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 87.3 kBtu/ft².
How much energy does Byer California - 128 King St. use?
Its 2025 site energy-use intensity was 87.3 kBtu/ft² (200.9 kBtu/ft² source) across 46,500 sq ft, including 850,337 kWh of electricity and 11,602 therms of natural gas.
What are Byer California - 128 King St.'s carbon emissions?
Byer California - 128 King St. reported 227 tCO₂e of greenhouse-gas emissions (4.9 kgCO₂e/ft²) for 2025.
Where is Byer California - 128 King St.?
Byer California - 128 King St. is at 128 KING ST, in San Francisco, California 94107. Its coordinates are 37.77951, -122.39071 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is Byer California - 128 King St. and when was it built?
Byer California - 128 King St. has 46,500 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1913 as its year built. It is classed as commercial.
Is Byer California - 128 King St. covered by SF Environment Code Chapter 20?
Yes — it appears in the 2025 Existing Buildings Energy Performance Ordinance disclosure, which lists the buildings reporting under SF Environment Code Chapter 20.
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About this data
Source: Existing Buildings Energy Performance Ordinance (SF Environment Code Chapter 20), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Byer California - 128 King St., San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/byer-california-128-king-st-0a77c468 (data as of October 2, 2026).