Union Fontana
Non-Refrigerated Warehouse in California, CA · 13125 Union Avenue, Fontana · 92337
At a glance
Union Fontana is a 97,186-square-foot non-refrigerated warehouse at 13125 Union Avenue, Fontana in Fontana, California, built in 2019. 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 3.1 kBtu/ft² and 20 tCO₂e of greenhouse-gas emissions. That score is higher than 92% of the 2,227 scored non-refrigerated warehouse 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 | 3.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 20 tCO₂e |
| GHG intensity | 0.2 kgCO₂e/ft² |
| Electricity | 87,819 kWh |
| Gross floor area | 97,186 sq ft |
| Source record | california:15139148:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 3.1 kBtu/ft² | 20 tCO₂e |
| 2023 | 100 | ±0 | 3.7 kBtu/ft² | 26 tCO₂e |
| 2022 | 100 | ±0 | 4.6 kBtu/ft² | 31 tCO₂e |
| 2021 | 100 | 3.8 kBtu/ft² | 22 tCO₂e | |
| 2020 | — | 2.6 kBtu/ft² | 18 tCO₂e | |
| 2019 | — | 2.9 kBtu/ft² | 19 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
- 13125 Union Avenue, Fontana
- City
- California
- State
- California
- ZIP
- 92337
- Coordinates
- 34.03625, -117.51941
Within ~1 km
Nearby benchmarked buildings
- Francis Etiwanda Llcscore 86
Non-Refrigerated Warehouse · 800,526 sq ft
Distribution Center · 456,370 sq ft
- 1670 Etiwanda Avenuescore 89
Non-Refrigerated Warehouse · 400,012 sq ft
Distribution Center · 380,650 sq ft
Other · 380,650 sq ft
Distribution Center · 380,650 sq ft
See also: most efficient in California · biggest emitters
How does Union Fontana compare with other non-refrigerated warehouse buildings in California?
The latest disclosures cover 2,867 non-refrigerated warehouse buildings in California, out of 40,029 buildings citywide. Union Fontana's ENERGY STAR score of 100 compares with an average of 68 across the 2,227 that report a score; it scores higher than 92% of them. Its site EUI of 3.1 kBtu/ft² is about 86% below the average of 21.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.2 kgCO₂e/ft² is about 86% below the group average of 1.4 kgCO₂e/ft².
At 97,186 sq ft, it is about 44% below the average floor area of 173,929 sq ft for those buildings. It was built in 2019, 31 years later than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 4,723 non-refrigerated warehouse buildings average an ENERGY STAR score of 66 and a site EUI of 26.0 kBtu/ft².
How has Union Fontana's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Union Fontana, covering report years 2019–2024. Its ENERGY STAR score was 100 in both 2021 and 2024. Site EUI moved from 2.9 kBtu/ft² (2019) to 3.1 kBtu/ft² (2024), an 7% increase. Reported emissions went from 19 tCO₂e to 20 tCO₂e over the same span (up 6%).
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. Union Fontana's 3.1 kBtu/ft² across 97,186 sq ft works out to about 0.3 billion Btu (88 MWh-equivalent) in 2024. The disclosure also reports 87,819 kWh of electricity for the year.
Which law requires Union Fontana to report its energy use?
Union Fontana 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:15139148:2024). 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 non-refrigerated warehouse buildings in California
- Allstate Floral W6· 97,145 sq ft · score 97 (A)
- Valley View - 131· 97,078 sq ft · EUI 0.2 kBtu/ft²
- Eagle Business Park 4· 97,060 sq ft
- Huntwood Business Center· 97,056 sq ft · score 45 (D)
- South Barn· 97,020 sq ft · score 15 (D)
- 9419 Mason Partners Llc· 97,000 sq ft · score 60 (C)
- Non-Refrigerated Warehouse buildings in California· 2,867 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 Union Fontana's energy grade?
Union Fontana 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 Union Fontana use?
Its 2024 site energy-use intensity was 3.1 kBtu/ft² across 97,186 sq ft, including 87,819 kWh of electricity.
What are Union Fontana's carbon emissions?
Union Fontana reported 20 tCO₂e of greenhouse-gas emissions (0.2 kgCO₂e/ft²) for 2024.
Where is Union Fontana?
Union Fontana is at 13125 Union Avenue, Fontana, in Fontana, California 92337. Its coordinates are 34.03625, -117.51941 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Union Fontana and when was it built?
Union Fontana has 97,186 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2019 as its year built. It is classed as non-refrigerated warehouse.
Is Union Fontana 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, “Union Fontana, Fontana, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/union-fontana-ac323f7c (data as of July 9, 2026).