Bennett Lofts Soma - Essex (Bn100)
Multifamily Housing in California, CA · 548 Brannan Street, San Francisco · 94107
At a glance
Bennett Lofts Soma - Essex (Bn100) is a 177,530-square-foot multifamily housing building at 548 Brannan Street, San Francisco in San Francisco, California, built in 2004. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 17.7 kBtu/ft² and 183 tCO₂e of greenhouse-gas emissions. That score is higher than 76% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 17.7 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 183 tCO₂e |
| GHG intensity | 1.0 kgCO₂e/ft² |
| Electricity | 333,968 kWh |
| Natural gas | 20,181 therms |
| Gross floor area | 177,530 sq ft |
| Source record | california:6720763:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 17.7 kBtu/ft² | 183 tCO₂e |
| 2023 | 100 | +8 | 19.2 kBtu/ft² | 206 tCO₂e |
| 2022 | 92 | -1 | 32.1 kBtu/ft² | 254 tCO₂e |
| 2021 | 93 | +3 | 28.6 kBtu/ft² | 219 tCO₂e |
| 2020 | 90 | -6 | 30.5 kBtu/ft² | 220 tCO₂e |
| 2019 | 96 | 28.0 kBtu/ft² | 215 tCO₂e |
Compliance context
AB 802 (Public Resources Code §25402.10)
AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 548 Brannan Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94107
- Coordinates
- 37.77773, -122.39783
Within ~1 km
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How does Bennett Lofts Soma - Essex (Bn100) compare with other multifamily housing buildings in California?
The latest disclosures cover 10,630 multifamily housing buildings in California, out of 40,029 buildings citywide. Bennett Lofts Soma - Essex (Bn100)'s ENERGY STAR score of 100 compares with an average of 82 across the 9,612 that report a score; it scores higher than 76% of them. Its site EUI of 17.7 kBtu/ft² is about half of the average of 34.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.0 kgCO₂e/ft² is about half of the group average of 2.1 kgCO₂e/ft².
At 177,530 sq ft, it is about 18% above the average floor area of 150,919 sq ft for those buildings. It was built in 2004, 16 years later than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Bennett Lofts Soma - Essex (Bn100)'s energy performance changed over time?
BuildingCensus holds 6 California disclosures for Bennett Lofts Soma - Essex (Bn100), covering report years 2019–2024. Its ENERGY STAR score went from 96 in 2019 to 100 in 2024 (+4 points); its best year on file was 2023, at 100. Site EUI moved from 28.0 kBtu/ft² (2019) to 17.7 kBtu/ft² (2024), a 37% decrease. Reported emissions went from 215 tCO₂e to 183 tCO₂e over the same span (down 15%).
What does an ENERGY STAR score of 100 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In California, 65% of scored buildings are at 75 or above.
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. Bennett Lofts Soma - Essex (Bn100)'s 17.7 kBtu/ft² across 177,530 sq ft works out to about 3.1 billion Btu (921 MWh-equivalent) in 2024. The disclosure also reports 333,968 kWh of electricity and 20,181 therms of natural gas for the year.
Which law requires Bennett Lofts Soma - Essex (Bn100) to report its energy use?
Bennett Lofts Soma - Essex (Bn100) reports under AB 802 (Public Resources Code §25402.10), the legal basis of California's Building Energy Benchmarking Program (statewide), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record california:6720763:2024). AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
More multifamily housing buildings in California
- Mirabella Apartments - Essex (Mr436)· 177,490 sq ft · score 98 (A)
- The U (Gr102)· 177,448 sq ft · score 100 (A)
- Bell Valencia (Mn035)· 177,430 sq ft · score 100 (A)
- Marquis - (Mr461) Essex· 177,408 sq ft · score 90 (A)
- 777 Hamilton (Hm71) Lg Account· 177,292 sq ft · score 100 (A)
- 632-634 N Jackson Ave· 177,234 sq ft · score 100 (A)
- Multifamily Housing buildings in California· 10,630 benchmarked
- All California benchmarked buildings· AB 802 (Public Resources Code §25402.10)
- Most efficient large buildings in California
- Least efficient large buildings in California
- Biggest emitters in California
Frequently asked questions
What is Bennett Lofts Soma - Essex (Bn100)'s energy grade?
Bennett Lofts Soma - Essex (Bn100) scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Bennett Lofts Soma - Essex (Bn100) use?
Its 2024 site energy-use intensity was 17.7 kBtu/ft² across 177,530 sq ft, including 333,968 kWh of electricity and 20,181 therms of natural gas.
What are Bennett Lofts Soma - Essex (Bn100)'s carbon emissions?
Bennett Lofts Soma - Essex (Bn100) reported 183 tCO₂e of greenhouse-gas emissions (1.0 kgCO₂e/ft²) for 2024.
Where is Bennett Lofts Soma - Essex (Bn100)?
Bennett Lofts Soma - Essex (Bn100) is at 548 Brannan Street, San Francisco, in San Francisco, California 94107. Its coordinates are 37.77773, -122.39783 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Bennett Lofts Soma - Essex (Bn100) and when was it built?
Bennett Lofts Soma - Essex (Bn100) has 177,530 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2004 as its year built. It is classed as multifamily housing.
Is Bennett Lofts Soma - Essex (Bn100) covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2024 Building Energy Benchmarking Program (statewide) disclosure, which lists the buildings reporting under AB 802 (Public Resources Code §25402.10).
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About this data
Source: Building Energy Benchmarking Program (statewide) (AB 802 (Public Resources Code §25402.10)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Bennett Lofts Soma - Essex (Bn100), San Francisco, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/bennett-lofts-soma-essex-bn100-78a5f4ea (data as of July 9, 2026).