29120-Belmont / O Neill Ave
Self-Storage Facility in California, CA · 333 Oneill Avenue, Belmont · 94002
At a glance
29120-Belmont / O Neill Ave is a 98,587-square-foot self-storage facility at 333 Oneill Avenue, Belmont in Belmont, California, built in 1900. In its 2024 California benchmarking disclosure it reported a site energy-use intensity of 1.9 kBtu/ft² and 12 tCO₂e of greenhouse-gas emissions.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 1.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 12 tCO₂e |
| GHG intensity | 0.1 kgCO₂e/ft² |
| Electricity | 10,468 kWh |
| Gross floor area | 98,587 sq ft |
| Source record | california:6336014:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 1.9 kBtu/ft² | 12 tCO₂e | |
| 2023 | — | 1.5 kBtu/ft² | 11 tCO₂e | |
| 2022 | — | 1.5 kBtu/ft² | 10 tCO₂e | |
| 2021 | — | 1.5 kBtu/ft² | 9 tCO₂e | |
| 2020 | — | 1.5 kBtu/ft² | 10 tCO₂e | |
| 2019 | — | 3.3 kBtu/ft² | 22 tCO₂e | |
| 2018 | — | 4.1 kBtu/ft² | 29 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 333 Oneill Avenue, Belmont
- City
- California
- State
- California
- ZIP
- 94002
- Coordinates
- 37.52271, -122.26898
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 29120-Belmont / O Neill Ave compare with other self-storage facility buildings in California?
The latest disclosures cover 1,935 self-storage facility buildings in California, out of 40,029 buildings citywide. Its site EUI of 1.9 kBtu/ft² is about 64% below the average of 5.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.1 kgCO₂e/ft² is about 68% below the group average of 0.4 kgCO₂e/ft².
At 98,587 sq ft, it is roughly in line with the average floor area of 99,202 sq ft for those buildings. It was built in 1900, 93 years earlier than the group's average year built (1993). Across all 24 jurisdictions BuildingCensus covers, the 3,050 self-storage facility buildings average an ENERGY STAR score of 75 and a site EUI of 9.4 kBtu/ft².
How has 29120-Belmont / O Neill Ave's energy performance changed over time?
BuildingCensus holds 7 California disclosures for 29120-Belmont / O Neill Ave, covering report years 2018–2024. Site EUI moved from 4.1 kBtu/ft² (2018) to 1.9 kBtu/ft² (2024), a 54% decrease. Reported emissions went from 29 tCO₂e to 12 tCO₂e over the same span (down 56%).
What does a site EUI of 1.9 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. 29120-Belmont / O Neill Ave's 1.9 kBtu/ft² across 98,587 sq ft works out to about 0.2 billion Btu (55 MWh-equivalent) in 2024. The disclosure also reports 10,468 kWh of electricity for the year.
Which law requires 29120-Belmont / O Neill Ave to report its energy use?
29120-Belmont / O Neill 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:6336014:2024). 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 self-storage facility buildings in California
- 7593-Salinas - 135 Martella St· 98,495 sq ft · EUI 4.5 kBtu/ft²
- A-1 Self Storage #360· 98,481 sq ft · EUI 3.4 kBtu/ft²
- 77513-Petaluma/Petalumabi & Kastania· 98,406 sq ft · EUI 3.8 kBtu/ft²
- U-Haul Moving & Storage Of Pleasanton (815026)· 98,380 sq ft · EUI 17.1 kBtu/ft²
- 20436-Milpitas/Montague Ii&Watson Ct· 98,356 sq ft · EUI 0.8 kBtu/ft²
- 998 Washington Blvd. - Ab802· 98,321 sq ft · EUI 2.6 kBtu/ft²
- Self-Storage Facility buildings in California· 1,935 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 29120-Belmont / O Neill Ave's energy grade?
29120-Belmont / O Neill Ave did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 1.9 kBtu/ft².
How much energy does 29120-Belmont / O Neill Ave use?
Its 2024 site energy-use intensity was 1.9 kBtu/ft² across 98,587 sq ft, including 10,468 kWh of electricity.
What are 29120-Belmont / O Neill Ave's carbon emissions?
29120-Belmont / O Neill Ave reported 12 tCO₂e of greenhouse-gas emissions (0.1 kgCO₂e/ft²) for 2024.
Where is 29120-Belmont / O Neill Ave?
29120-Belmont / O Neill Ave is at 333 Oneill Avenue, Belmont, in Belmont, California 94002. Its coordinates are 37.52271, -122.26898 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 29120-Belmont / O Neill Ave and when was it built?
29120-Belmont / O Neill Ave has 98,587 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1900 as its year built. It is classed as self-storage facility.
Is 29120-Belmont / O Neill 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, “29120-Belmont / O Neill Ave, Belmont, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/29120-belmont-o-neill-ave-169edfaa (data as of July 9, 2026).