820 South Vintage Ave
Office in California, CA · 820 South Vintage Avenue, Ontario · 91761
At a glance
820 South Vintage Ave is a 106,400-square-foot office building at 820 South Vintage Avenue, Ontario in Ontario, California, built in 1998. 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 4.0 kBtu/ft² and 28 tCO₂e of greenhouse-gas emissions. That score is higher than 91% of the 4,912 scored office 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 | 4.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 28 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Electricity | 125,644 kWh |
| Gross floor area | 106,400 sq ft |
| Source record | california:17408600:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 4.0 kBtu/ft² | 28 tCO₂e |
| 2023 | 100 | ±0 | 3.6 kBtu/ft² | 27 tCO₂e |
| 2022 | 100 | 3.6 kBtu/ft² | 26 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
- 820 South Vintage Avenue, Ontario
- City
- California
- State
- California
- ZIP
- 91761
- Coordinates
- 34.05428, -117.53693
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 820 South Vintage Ave compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 820 South Vintage Ave's ENERGY STAR score of 100 compares with an average of 75 across the 4,912 that report a score; it scores higher than 91% of them. Its site EUI of 4.0 kBtu/ft² is about 93% below the average of 56.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.3 kgCO₂e/ft² is about 93% below the group average of 3.6 kgCO₂e/ft².
At 106,400 sq ft, it is about 30% below the average floor area of 151,937 sq ft for those buildings. It was built in 1998, 13 years later than the group's average year built (1985). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 820 South Vintage Ave's energy performance changed over time?
BuildingCensus holds 3 California disclosures for 820 South Vintage Ave, covering report years 2022–2024. Its ENERGY STAR score was 100 in both 2022 and 2024. Site EUI moved from 3.6 kBtu/ft² (2022) to 4.0 kBtu/ft² (2024), an 11% increase. Reported emissions went from 26 tCO₂e to 28 tCO₂e over the same span (up 8%).
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. 820 South Vintage Ave's 4.0 kBtu/ft² across 106,400 sq ft works out to about 0.4 billion Btu (125 MWh-equivalent) in 2024. The disclosure also reports 125,644 kWh of electricity for the year.
Which law requires 820 South Vintage Ave to report its energy use?
820 South Vintage Ave 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:17408600:2024). 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 office buildings in California
- Cypress Crossroads· 106,341 sq ft · score 83 (B)
- Calle Tecate· 106,297 sq ft · score 50 (D)
- Carlsbad Palomar, Llc - 3115 Melrose Drive· 106,291 sq ft · score 74 (B)
- Towne Centre-27121· 106,260 sq ft · score 100 (A)
- Sewer_Moc 2· 106,240 sq ft · score 87 (A)
- Sewer_Moc 2· 106,240 sq ft · score 94 (A)
- Office buildings in California· 6,214 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 820 South Vintage Ave's energy grade?
820 South Vintage Ave 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 820 South Vintage Ave use?
Its 2024 site energy-use intensity was 4.0 kBtu/ft² across 106,400 sq ft, including 125,644 kWh of electricity.
What are 820 South Vintage Ave's carbon emissions?
820 South Vintage Ave reported 28 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2024.
Where is 820 South Vintage Ave?
820 South Vintage Ave is at 820 South Vintage Avenue, Ontario, in Ontario, California 91761. Its coordinates are 34.05428, -117.53693 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 820 South Vintage Ave and when was it built?
820 South Vintage Ave has 106,400 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1998 as its year built. It is classed as office.
Is 820 South Vintage Ave 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, “820 South Vintage Ave, Ontario, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/820-south-vintage-ave-7bb42df7 (data as of July 9, 2026).