Antioch-Somersville Towne Center
Retail Store in California, CA · 2600 Somersville Road, Antioch · 94509
At a glance
Antioch-Somersville Towne Center is a 73,709-square-foot retail store at 2600 Somersville Road, Antioch in Antioch, California, built in 1973. In its 2024 California benchmarking disclosure it reported a site energy-use intensity of 16.0 kBtu/ft² and 79 tCO₂e of greenhouse-gas emissions.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 16.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 79 tCO₂e |
| GHG intensity | 1.1 kgCO₂e/ft² |
| Electricity | 346,662 kWh |
| Gross floor area | 73,709 sq ft |
| Source record | california:2038000:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 16.0 kBtu/ft² | 79 tCO₂e | |
| 2023 | — | 11.2 kBtu/ft² | 58 tCO₂e | |
| 2022 | — | 7.9 kBtu/ft² | 40 tCO₂e | |
| 2021 | — | 4.7 kBtu/ft² | 24 tCO₂e | |
| 2020 | — | 4.9 kBtu/ft² | 24 tCO₂e | |
| 2019 | 97 | +1 | 20.9 kBtu/ft² | 106 tCO₂e |
| 2018 | 96 | 21.8 kBtu/ft² | 111 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
- 2600 Somersville Road, Antioch
- City
- California
- State
- California
- ZIP
- 94509
- Coordinates
- 38.00282, -121.84425
Within ~1 km
Nearby benchmarked buildings
- Somersville Towne Centerscore —
Enclosed Mall · 501,259 sq ft
- 4105-4211 Century Blvdscore —
Strip Mall · 216,831 sq ft
- 4403-4699 Century Blvdscore —
Strip Mall · 213,696 sq ft
Retail Store · 155,929 sq ft
- Delta View Apartmentsscore 90
Multifamily Housing · 148,512 sq ft
- Hudson Townhouse Manorscore 100
Multifamily Housing · 114,862 sq ft
See also: most efficient in California · biggest emitters
How does Antioch-Somersville Towne Center compare with other retail store buildings in California?
The latest disclosures cover 1,742 retail store buildings in California, out of 40,029 buildings citywide. Its site EUI of 16.0 kBtu/ft² is about 70% below the average of 53.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.1 kgCO₂e/ft² is about 68% below the group average of 3.3 kgCO₂e/ft².
At 73,709 sq ft, it is about 41% below the average floor area of 124,053 sq ft for those buildings. It was built in 1973, 18 years earlier than the group's average year built (1991). Across all 24 jurisdictions BuildingCensus covers, the 3,025 retail store buildings average an ENERGY STAR score of 73 and a site EUI of 57.7 kBtu/ft².
How has Antioch-Somersville Towne Center's energy performance changed over time?
BuildingCensus holds 7 California disclosures for Antioch-Somersville Towne Center, covering report years 2018–2024. Its ENERGY STAR score went from 96 in 2018 to 97 in 2019 (+1 points). Site EUI moved from 21.8 kBtu/ft² (2018) to 16.0 kBtu/ft² (2024), a 27% decrease. Reported emissions went from 111 tCO₂e to 79 tCO₂e over the same span (down 29%).
What does a site EUI of 16.0 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. Antioch-Somersville Towne Center's 16.0 kBtu/ft² across 73,709 sq ft works out to about 1.2 billion Btu (346 MWh-equivalent) in 2024. The disclosure also reports 346,662 kWh of electricity for the year.
Which law requires Antioch-Somersville Towne Center to report its energy use?
Antioch-Somersville Towne Center 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:2038000:2024). 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 retail store buildings in California
- 3834, 1000 San Fernando Rd, Burbank· 73,699 sq ft · EUI 6.6 kBtu/ft²
- Builders Firstsource Escocahc· 73,502 sq ft · score 100 (A)
- 720 W San Carlos· 73,456 sq ft · EUI 12.0 kBtu/ft²
- Walmart Store #5629· 73,270 sq ft · score 83 (B)
- Santa Rosa Town Center 2· 73,092 sq ft · score 100 (A)
- 157 Downey· 73,000 sq ft · score 59 (C)
- Retail Store buildings in California· 1,742 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 Antioch-Somersville Towne Center's energy grade?
Antioch-Somersville Towne Center did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 16.0 kBtu/ft².
How much energy does Antioch-Somersville Towne Center use?
Its 2024 site energy-use intensity was 16.0 kBtu/ft² across 73,709 sq ft, including 346,662 kWh of electricity.
What are Antioch-Somersville Towne Center's carbon emissions?
Antioch-Somersville Towne Center reported 79 tCO₂e of greenhouse-gas emissions (1.1 kgCO₂e/ft²) for 2024.
Where is Antioch-Somersville Towne Center?
Antioch-Somersville Towne Center is at 2600 Somersville Road, Antioch, in Antioch, California 94509. Its coordinates are 38.00282, -121.84425 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Antioch-Somersville Towne Center and when was it built?
Antioch-Somersville Towne Center has 73,709 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1973 as its year built. It is classed as retail store.
Is Antioch-Somersville Towne Center 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, “Antioch-Somersville Towne Center, Antioch, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/antioch-somersville-towne-center-f84bbe3d (data as of July 9, 2026).