Eba01704 - Union City 4
Distribution Center in California, CA · 30029-37 Ahern Ave, Union City · 94550
At a glance
Eba01704 - Union City 4 is a 82,944-square-foot distribution center at 30029-37 Ahern Ave, Union City in Union City, California, built in 1988. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 2 out of 100 (grade D), a site energy-use intensity of 68.1 kBtu/ft² and 354 tCO₂e of greenhouse-gas emissions. That score is higher than 4% of the 2,485 scored distribution center buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 2 (band D) |
| Site EUI | 68.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 354 tCO₂e |
| GHG intensity | 4.3 kgCO₂e/ft² |
| Electricity | 1,238,336 kWh |
| Natural gas | 13,814 therms |
| Gross floor area | 82,944 sq ft |
| Source record | california:6219349:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 2 | -32 | 68.1 kBtu/ft² | 354 tCO₂e |
| 2023 | 34 | 28.1 kBtu/ft² | 152 tCO₂e | |
| 2021 | — | — | — |
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
- 30029-37 Ahern Ave, Union City
- City
- California
- State
- California
- ZIP
- 94550
- Coordinates
- 37.61050, -122.07753
Within ~1 km
Nearby benchmarked buildings
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- Br44273-Parentscore —
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- Union City Mob Campusscore 46
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- Ca - 2931 Faber Stscore 22
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- Hacascore 76
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- Alvarado Business Park #Fscore 31
Distribution Center · 128,516 sq ft
See also: most efficient in California · biggest emitters
How does Eba01704 - Union City 4 compare with other distribution center buildings in California?
The latest disclosures cover 3,121 distribution center buildings in California, out of 40,029 buildings citywide. Eba01704 - Union City 4's ENERGY STAR score of 2 compares with an average of 67 across the 2,485 that report a score; it scores higher than 4% of them and lower than 95%. Its site EUI of 68.1 kBtu/ft² is about 244% above the average of 19.8 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 4.3 kgCO₂e/ft² is about 228% above the group average of 1.3 kgCO₂e/ft².
At 82,944 sq ft, it is about 65% below the average floor area of 238,298 sq ft for those buildings. It was built in 1988, 6 years earlier than the group's average year built (1994). Across all 24 jurisdictions BuildingCensus covers, the 4,082 distribution center buildings average an ENERGY STAR score of 65 and a site EUI of 24.2 kBtu/ft².
How has Eba01704 - Union City 4's energy performance changed over time?
BuildingCensus holds 3 California disclosures for Eba01704 - Union City 4, covering report years 2021, 2023, 2024. Its ENERGY STAR score went from 34 in 2023 to 2 in 2024 (-32 points); its best year on file was 2023, at 34. Site EUI moved from 28.1 kBtu/ft² (2023) to 68.1 kBtu/ft² (2024), an 142% increase. Reported emissions went from 152 tCO₂e to 354 tCO₂e over the same span (up 133%).
What does an ENERGY STAR score of 2 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: a score of 2 means the building performs better than about 2% of its national peers. BuildingCensus bands the score into report-card grades; 2 falls in band D — lowest band (1–54). It sits 73 points below 75, the threshold for ENERGY STAR certification. 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. Eba01704 - Union City 4's 68.1 kBtu/ft² across 82,944 sq ft works out to about 5.6 billion Btu (1,655 MWh-equivalent) in 2024. The disclosure also reports 1,238,336 kWh of electricity and 13,814 therms of natural gas for the year.
Which law requires Eba01704 - Union City 4 to report its energy use?
Eba01704 - Union City 4 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:6219349:2024). 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 distribution center buildings in California
- 2721 S Harbor Boulevard· 82,940 sq ft · score 71 (B)
- Ca009801· 82,873 sq ft · score 91 (A)
- Reservoir Industrial Center Ii· 82,753 sq ft · EUI 5.8 kBtu/ft²
- 162, 930 East 233Rd Street, Carson· 82,427 sq ft · score 81 (B)
- 184.1· 82,274 sq ft · score 100 (A)
- Building 03, 5600-5628 Bandini Boulevard, Bell· 82,250 sq ft · score 98 (A)
- Distribution Center buildings in California· 3,121 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 Eba01704 - Union City 4's energy grade?
Eba01704 - Union City 4 scores 2 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Eba01704 - Union City 4 use?
Its 2024 site energy-use intensity was 68.1 kBtu/ft² across 82,944 sq ft, including 1,238,336 kWh of electricity and 13,814 therms of natural gas.
What are Eba01704 - Union City 4's carbon emissions?
Eba01704 - Union City 4 reported 354 tCO₂e of greenhouse-gas emissions (4.3 kgCO₂e/ft²) for 2024.
Where is Eba01704 - Union City 4?
Eba01704 - Union City 4 is at 30029-37 Ahern Ave, Union City, in Union City, California 94550. Its coordinates are 37.61050, -122.07753 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Eba01704 - Union City 4 and when was it built?
Eba01704 - Union City 4 has 82,944 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1988 as its year built. It is classed as distribution center.
Is Eba01704 - Union City 4 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, “Eba01704 - Union City 4, Union City, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/eba01704-union-city-4-f142a5dc (data as of July 9, 2026).