181 Fremont St
Commercial in San Francisco, CA · 94105
At a glance
181 Fremont St is a 706,617-square-foot commercial building in San Francisco, California, built in 2018. In its 2025 San Francisco benchmarking disclosure it reported a site energy-use intensity of 35.2 kBtu/ft² and 1,248 tCO₂e of greenhouse-gas emissions.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 35.2 kBtu/ft² |
| Source EUI | 83.5 kBtu/ft² |
| GHG emissions | 1,248 tCO₂e |
| GHG intensity | 2.0 kgCO₂e/ft² |
| Electricity | 4,917,261 kWh |
| Natural gas | 54,499 therms |
| Gross floor area | 706,617 sq ft |
| Source record | sf:3719/450:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 35.2 kBtu/ft² | 1,248 tCO₂e | |
| 2024 | — | 29.9 kBtu/ft² | 1,185 tCO₂e | |
| 2023 | — | 41.4 kBtu/ft² | 1,683 tCO₂e | |
| 2022 | — | 69.3 kBtu/ft² | 2,811 tCO₂e | |
| 2021 | — | 55.3 kBtu/ft² | 2,036 tCO₂e | |
| 2020 | — | — | — | |
| 2019 | — | — | — | |
| 2018 | — | — | — | |
| 2017 | — | — | — | |
| 2016 | — | — | — | |
| 2015 | — | — | — | |
| 2014 | — | — | — | |
| 2013 | — | — | — | |
| 2012 | — | — | — |
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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 181 Fremont St
- City
- San Francisco
- State
- California
- ZIP
- 94105
- Coordinates
- 37.78975, -122.39529
Within ~1 km
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See also: most efficient in San Francisco · biggest emitters
How does 181 Fremont 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 35.2 kBtu/ft² is about 28% below the average of 49.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.0 kgCO₂e/ft² is about 27% below the group average of 2.7 kgCO₂e/ft².
At 706,617 sq ft, it is about 558% above the average floor area of 107,408 sq ft for those buildings. It was built in 2018, 77 years later 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 181 Fremont St's energy performance changed over time?
BuildingCensus holds 14 San Francisco disclosures for 181 Fremont St, covering report years 2012–2025. Site EUI moved from 55.3 kBtu/ft² (2021) to 35.2 kBtu/ft² (2025), a 36% decrease. Reported emissions went from 2,036 tCO₂e to 1,248 tCO₂e over the same span (down 39%).
What does a site EUI of 35.2 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. 181 Fremont St's 35.2 kBtu/ft² across 706,617 sq ft works out to about 24.9 billion Btu (7,290 MWh-equivalent) in 2025. Its source EUI of 83.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,917,261 kWh of electricity and 54,499 therms of natural gas for the year.
Which law requires 181 Fremont St to report its energy use?
181 Fremont 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:3719/450:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
More commercial buildings in San Francisco
- 2 Folsom· 700,079 sq ft · score 70 (B)
- 415 NATOMA ST· 700,000 sq ft · score 100 (A)
- PARC 55 WYNDHAM San Francisco- Union Square· 698,660 sq ft · score 93 (A)
- 45 Fremont· 691,436 sq ft · score 88 (A)
- Digital Realty Trust· 673,926 sq ft · score 36 (D)
- Pyramid Center· 650,189 sq ft · EUI 56.0 kBtu/ft²
- Commercial buildings in San Francisco· 1,683 benchmarked
- All San Francisco benchmarked buildings· SF Environment Code Chapter 20
- Most efficient large buildings in San Francisco
- Least efficient large buildings in San Francisco
- Biggest emitters in San Francisco
Frequently asked questions
What is 181 Fremont St's energy grade?
181 Fremont St did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 35.2 kBtu/ft².
How much energy does 181 Fremont St use?
Its 2025 site energy-use intensity was 35.2 kBtu/ft² (83.5 kBtu/ft² source) across 706,617 sq ft, including 4,917,261 kWh of electricity and 54,499 therms of natural gas.
What are 181 Fremont St's carbon emissions?
181 Fremont St reported 1,248 tCO₂e of greenhouse-gas emissions (2.0 kgCO₂e/ft²) for 2025.
Where is 181 Fremont St?
181 Fremont St is in San Francisco, California 94105. Its coordinates are 37.78975, -122.39529 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is 181 Fremont St and when was it built?
181 Fremont St has 706,617 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2018 as its year built. It is classed as commercial.
Is 181 Fremont 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, “181 Fremont St, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/181-fremont-st-e1e7c1f3 (data as of October 2, 2026).