5245 Hellyer Ave
Laboratory in California, CA · 5245 Hellyer Avenue, San Jose · 95111
At a glance
5245 Hellyer Ave is a 60,000-square-foot laboratory building at 5245 Hellyer Avenue, San Jose in San Jose, California, built in 2000. In its 2024 California benchmarking disclosure it reported a site energy-use intensity of 249.7 kBtu/ft² and 986 tCO₂e of greenhouse-gas emissions.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 249.7 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 986 tCO₂e |
| GHG intensity | 16.4 kgCO₂e/ft² |
| Electricity | 3,713,686 kWh |
| Gross floor area | 60,000 sq ft |
| Source record | california:17993964:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 249.7 kBtu/ft² | 986 tCO₂e | |
| 2023 | — | 267.2 kBtu/ft² | 1,064 tCO₂e | |
| 2022 | — | 274.8 kBtu/ft² | 1,057 tCO₂e | |
| 2021 | — | 265.2 kBtu/ft² | 1,008 tCO₂e | |
| 2020 | — | 261.5 kBtu/ft² | 913 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
- 5245 Hellyer Avenue, San Jose
- City
- California
- State
- California
- ZIP
- 95111
- Coordinates
- 37.27054, -121.79353
Within ~1 km
Nearby benchmarked buildings
- 5215-5225 Hellyer Avenuescore 63
Office · 347,434 sq ft
- Hellyer Technology Parkscore —
Office · 347,434 sq ft
Office · 256,250 sq ft
- The Plexscore —
Mixed Use Property · 240,000 sq ft
- Maverickscore —
Other - Recreation · 237,000 sq ft
Manufacturing/Industrial Plant · 203,807 sq ft
See also: most efficient in California · biggest emitters
How does 5245 Hellyer Ave compare with other laboratory buildings in California?
The latest disclosures cover 308 laboratory buildings in California, out of 40,029 buildings citywide. Its site EUI of 249.7 kBtu/ft² is about 37% above the average of 181.8 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 16.4 kgCO₂e/ft² is about 48% above the group average of 11.1 kgCO₂e/ft².
At 60,000 sq ft, it is about half of the average floor area of 121,485 sq ft for those buildings. It was built in 2000, 8 years later than the group's average year built (1992). Across all 24 jurisdictions BuildingCensus covers, the 795 laboratory buildings average an ENERGY STAR score of 29 and a site EUI of 231.7 kBtu/ft².
How has 5245 Hellyer Ave's energy performance changed over time?
BuildingCensus holds 5 California disclosures for 5245 Hellyer Ave, covering report years 2020–2024. Site EUI moved from 261.5 kBtu/ft² (2020) to 249.7 kBtu/ft² (2024), a 5% decrease. Reported emissions went from 913 tCO₂e to 986 tCO₂e over the same span (up 8%).
What does a site EUI of 249.7 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. 5245 Hellyer Ave's 249.7 kBtu/ft² across 60,000 sq ft works out to about 15 billion Btu (4,391 MWh-equivalent) in 2024. The disclosure also reports 3,713,686 kWh of electricity for the year.
Which law requires 5245 Hellyer Ave to report its energy use?
5245 Hellyer 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:17993964:2024). 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 laboratory buildings in California
- 951 Gateway Blvd· 59,816 sq ft · EUI 183.7 kBtu/ft²
- 10394 Pacific Center Court· 59,327 sq ft · EUI 138.3 kBtu/ft²
- Z435017 - Menlo Business Park Bldg #14 (1505 O'Brien)· 59,269 sq ft · EUI 222.9 kBtu/ft²
- 10618 Science Center Dr· 59,248 sq ft · EUI 244.5 kBtu/ft²
- 3550 John Hopkins Court· 59,199 sq ft · EUI 326.1 kBtu/ft²
- Waterfront - 1701 Harbor Bay Pkwy· 59,115 sq ft · EUI 107.2 kBtu/ft²
- Laboratory buildings in California· 308 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 5245 Hellyer Ave's energy grade?
5245 Hellyer Ave did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 249.7 kBtu/ft².
How much energy does 5245 Hellyer Ave use?
Its 2024 site energy-use intensity was 249.7 kBtu/ft² across 60,000 sq ft, including 3,713,686 kWh of electricity.
What are 5245 Hellyer Ave's carbon emissions?
5245 Hellyer Ave reported 986 tCO₂e of greenhouse-gas emissions (16.4 kgCO₂e/ft²) for 2024.
Where is 5245 Hellyer Ave?
5245 Hellyer Ave is at 5245 Hellyer Avenue, San Jose, in San Jose, California 95111. Its coordinates are 37.27054, -121.79353 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 5245 Hellyer Ave and when was it built?
5245 Hellyer Ave has 60,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2000 as its year built. It is classed as laboratory.
Is 5245 Hellyer 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, “5245 Hellyer Ave, San Jose, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/5245-hellyer-ave-24edff15 (data as of July 9, 2026).