Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien)
Laboratory in California, CA · 1305 O'Brien Drive, Menlo Park · 94025
At a glance
Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien) is a 190,389-square-foot laboratory building at 1305 O'Brien Drive, Menlo Park in Menlo Park, California, built in 1988. In its 2024 California benchmarking disclosure it reported a site energy-use intensity of 214.6 kBtu/ft² and 2,491 tCO₂e of greenhouse-gas emissions.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 214.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 2,491 tCO₂e |
| GHG intensity | 13.1 kgCO₂e/ft² |
| Electricity | 7,914,288 kWh |
| Natural gas | 131,595 therms |
| Gross floor area | 190,389 sq ft |
| Source record | california:4676706:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 214.6 kBtu/ft² | 2,491 tCO₂e | |
| 2023 | — | 225.5 kBtu/ft² | 2,772 tCO₂e | |
| 2022 | — | 205.8 kBtu/ft² | 2,460 tCO₂e | |
| 2021 | — | 189.9 kBtu/ft² | 2,068 tCO₂e | |
| 2020 | — | 177.6 kBtu/ft² | 2,083 tCO₂e | |
| 2019 | — | 163.8 kBtu/ft² | 2,029 tCO₂e | |
| 2018 | — | 154.2 kBtu/ft² | 1,862 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
- 1305 O'Brien Drive, Menlo Park
- City
- California
- State
- California
- ZIP
- 94025
- Coordinates
- 37.47755, -122.14530
Within ~1 km
Nearby benchmarked buildings
See also: most efficient in California · biggest emitters
How does Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien) 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 214.6 kBtu/ft² is about 18% 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 13.1 kgCO₂e/ft² is about 18% above the group average of 11.1 kgCO₂e/ft².
At 190,389 sq ft, it is about 57% above the average floor area of 121,485 sq ft for those buildings. It was built in 1988, 4 years earlier 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 Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien)'s energy performance changed over time?
BuildingCensus holds 7 California disclosures for Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien), covering report years 2018–2024. Site EUI moved from 154.2 kBtu/ft² (2018) to 214.6 kBtu/ft² (2024), an 39% increase. Reported emissions went from 1,862 tCO₂e to 2,491 tCO₂e over the same span (up 34%).
What does a site EUI of 214.6 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. Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien)'s 214.6 kBtu/ft² across 190,389 sq ft works out to about 40.9 billion Btu (11,974 MWh-equivalent) in 2024. The disclosure also reports 7,914,288 kWh of electricity and 131,595 therms of natural gas for the year.
Which law requires Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien) to report its energy use?
Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien) 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:4676706:2024). 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
- Scripps Summit· 188,399 sq ft · EUI 15.5 kBtu/ft²
- Wateridge Property Owner Lp· 183,565 sq ft · EUI 154.5 kBtu/ft²
- Sp Zanker Property Llc· 180,000 sq ft · EUI 131.0 kBtu/ft²
- Bmr-Pacific Research Center-Building 7· 178,047 sq ft · EUI 48.3 kBtu/ft²
- Bmr-201 Industrial Road· 176,956 sq ft · EUI 260.8 kBtu/ft²
- Harlyne J. Norris Research Tower (Nrt)· 176,703 sq ft · EUI 240.3 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 Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien)'s energy grade?
Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien) did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 214.6 kBtu/ft².
How much energy does Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien) use?
Its 2024 site energy-use intensity was 214.6 kBtu/ft² across 190,389 sq ft, including 7,914,288 kWh of electricity and 131,595 therms of natural gas.
What are Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien)'s carbon emissions?
Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien) reported 2,491 tCO₂e of greenhouse-gas emissions (13.1 kgCO₂e/ft²) for 2024.
Where is Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien)?
Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien) is at 1305 O'Brien Drive, Menlo Park, in Menlo Park, California 94025. Its coordinates are 37.47755, -122.14530 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien) and when was it built?
Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien) has 190,389 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1988 as its year built. It is classed as laboratory.
Is Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien) 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, “Z435610 - Menlo Business Park Bldg #03 (1305 O'Brien), Menlo Park, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/z435610-menlo-business-park-bldg-03-1305-o-brien-fb8866a2 (data as of July 9, 2026).