Hansen Exptl Physics Lab - South
Laboratory in California, CA · 491 South Service Road, Stanford · 94305
At a glance
Hansen Exptl Physics Lab - South is a 62,474-square-foot laboratory building at 491 South Service Road, Stanford in Stanford, California, built in 1975. In its 2024 California benchmarking disclosure it reported a site energy-use intensity of 54.2 kBtu/ft² and 225 tCO₂e of greenhouse-gas emissions.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 54.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 225 tCO₂e |
| GHG intensity | 3.6 kgCO₂e/ft² |
| Electricity | 991,478 kWh |
| Gross floor area | 62,474 sq ft |
| Source record | california:10924623:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 54.2 kBtu/ft² | 225 tCO₂e | |
| 2023 | — | 56.4 kBtu/ft² | 250 tCO₂e | |
| 2022 | — | 56.1 kBtu/ft² | 240 tCO₂e | |
| 2021 | — | 66.4 kBtu/ft² | 251 tCO₂e | |
| 2020 | — | 66.1 kBtu/ft² | 274 tCO₂e | |
| 2019 | — | 82.5 kBtu/ft² | 341 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
- 491 South Service Road, Stanford
- City
- California
- State
- California
- ZIP
- 94305
- Coordinates
- 37.42888, -122.17653
Within ~1 km
Nearby benchmarked buildings
- Stanford Hospitalscore 27
Hospital (General Medical & Surgical) · 1,125,960 sq ft
- Main & West Combinedscore 63
Hospital (General Medical & Surgical) · 1,068,607 sq ft
- New Stanford Hospital (Nsh)score 17
Hospital (General Medical & Surgical) · 849,370 sq ft
- Lpch Mainscore 71
Hospital (General Medical & Surgical) · 761,310 sq ft
- Roble Field Garagescore —
Parking · 500,800 sq ft
- Stock Farm Garagescore —
Parking · 481,132 sq ft
See also: most efficient in California · biggest emitters
How does Hansen Exptl Physics Lab - South 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 54.2 kBtu/ft² is about 70% below the average of 181.8 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.6 kgCO₂e/ft² is about 68% below the group average of 11.1 kgCO₂e/ft².
At 62,474 sq ft, it is about half of the average floor area of 121,485 sq ft for those buildings. It was built in 1975, 17 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 Hansen Exptl Physics Lab - South's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Hansen Exptl Physics Lab - South, covering report years 2019–2024. Site EUI moved from 82.5 kBtu/ft² (2019) to 54.2 kBtu/ft² (2024), a 34% decrease. Reported emissions went from 341 tCO₂e to 225 tCO₂e over the same span (down 34%).
What does a site EUI of 54.2 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. Hansen Exptl Physics Lab - South's 54.2 kBtu/ft² across 62,474 sq ft works out to about 3.4 billion Btu (992 MWh-equivalent) in 2024. The disclosure also reports 991,478 kWh of electricity for the year.
Which law requires Hansen Exptl Physics Lab - South to report its energy use?
Hansen Exptl Physics Lab - South 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:10924623:2024). 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
- Bmr-Axiom Lp - 4545 Towne Centre· 62,472 sq ft · EUI 170.4 kBtu/ft²
- Us-Mtv-2011· 62,134 sq ft · EUI 256.1 kBtu/ft²
- Bmr-720 Bay Road· 61,542 sq ft · EUI 180.8 kBtu/ft²
- 3350 West Bayshore Road· 61,537 sq ft · EUI 376.2 kBtu/ft²
- Bmr-3260 Bayshore· 61,444 sq ft · EUI 235.4 kBtu/ft²
- Bmr-740 Bay Road· 60,985 sq ft · EUI 216.8 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 Hansen Exptl Physics Lab - South's energy grade?
Hansen Exptl Physics Lab - South did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 54.2 kBtu/ft².
How much energy does Hansen Exptl Physics Lab - South use?
Its 2024 site energy-use intensity was 54.2 kBtu/ft² across 62,474 sq ft, including 991,478 kWh of electricity.
What are Hansen Exptl Physics Lab - South's carbon emissions?
Hansen Exptl Physics Lab - South reported 225 tCO₂e of greenhouse-gas emissions (3.6 kgCO₂e/ft²) for 2024.
Where is Hansen Exptl Physics Lab - South?
Hansen Exptl Physics Lab - South is at 491 South Service Road, Stanford, in Stanford, California 94305. Its coordinates are 37.42888, -122.17653 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Hansen Exptl Physics Lab - South and when was it built?
Hansen Exptl Physics Lab - South has 62,474 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1975 as its year built. It is classed as laboratory.
Is Hansen Exptl Physics Lab - South 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).
Working with California building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Hansen Exptl Physics Lab - South, Stanford, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/hansen-exptl-physics-lab-south-8e83d289 (data as of July 9, 2026).