Stanford Auxiliary Library Iii
Library in California, CA · 475 Longfellow Court, Livermore · 94550
At a glance
Stanford Auxiliary Library Iii is a 74,647-square-foot library at 475 Longfellow Court, Livermore in Livermore, California, built in 1970. In its 2024 California benchmarking disclosure it reported a site energy-use intensity of 65.5 kBtu/ft² and 314 tCO₂e of greenhouse-gas emissions.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 65.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 314 tCO₂e |
| GHG intensity | 4.2 kgCO₂e/ft² |
| Electricity | 1,219,384 kWh |
| Natural gas | 7,058 therms |
| Gross floor area | 74,647 sq ft |
| Source record | california:10924636:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 65.5 kBtu/ft² | 314 tCO₂e | |
| 2023 | — | 53.6 kBtu/ft² | 273 tCO₂e | |
| 2022 | — | 53.8 kBtu/ft² | 265 tCO₂e | |
| 2021 | — | 50.0 kBtu/ft² | 221 tCO₂e | |
| 2020 | — | 44.0 kBtu/ft² | 211 tCO₂e | |
| 2019 | — | 50.3 kBtu/ft² | 263 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
- 475 Longfellow Court, Livermore
- City
- California
- State
- California
- ZIP
- 94550
- Coordinates
- 37.70311, -121.70592
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Stanford Auxiliary Library Iii compare with other library buildings in California?
The latest disclosures cover 49 library buildings in California, out of 40,029 buildings citywide. Its site EUI of 65.5 kBtu/ft² is about 17% above the average of 56.1 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 4.2 kgCO₂e/ft² is about 20% above the group average of 3.5 kgCO₂e/ft².
At 74,647 sq ft, it is about 41% below the average floor area of 126,866 sq ft for those buildings. It was built in 1970, 7 years earlier than the group's average year built (1977).
How has Stanford Auxiliary Library Iii's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Stanford Auxiliary Library Iii, covering report years 2019–2024. Site EUI moved from 50.3 kBtu/ft² (2019) to 65.5 kBtu/ft² (2024), an 30% increase. Reported emissions went from 263 tCO₂e to 314 tCO₂e over the same span (up 19%).
What does a site EUI of 65.5 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. Stanford Auxiliary Library Iii's 65.5 kBtu/ft² across 74,647 sq ft works out to about 4.9 billion Btu (1,433 MWh-equivalent) in 2024. The disclosure also reports 1,219,384 kWh of electricity and 7,058 therms of natural gas for the year.
Which law requires Stanford Auxiliary Library Iii to report its energy use?
Stanford Auxiliary Library Iii 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:10924636:2024). 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 library buildings in California
- Inglewood - Civic Center Library· 73,972 sq ft · EUI 27.8 kBtu/ft²
- Dove Library· 73,537 sq ft · EUI 60.9 kBtu/ft²
- Oxnard Public Library· 72,000 sq ft
- Newport Beach Public Library· 71,000 sq ft · EUI 40.7 kBtu/ft²
- Camarillo Public Library· 67,294 sq ft · EUI 65.3 kBtu/ft²
- Stanford Auxiliary Library· 61,023 sq ft · EUI 40.0 kBtu/ft²
- Library buildings in California· 49 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 Stanford Auxiliary Library Iii's energy grade?
Stanford Auxiliary Library Iii did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 65.5 kBtu/ft².
How much energy does Stanford Auxiliary Library Iii use?
Its 2024 site energy-use intensity was 65.5 kBtu/ft² across 74,647 sq ft, including 1,219,384 kWh of electricity and 7,058 therms of natural gas.
What are Stanford Auxiliary Library Iii's carbon emissions?
Stanford Auxiliary Library Iii reported 314 tCO₂e of greenhouse-gas emissions (4.2 kgCO₂e/ft²) for 2024.
Where is Stanford Auxiliary Library Iii?
Stanford Auxiliary Library Iii is at 475 Longfellow Court, Livermore, in Livermore, California 94550. Its coordinates are 37.70311, -121.70592 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Stanford Auxiliary Library Iii and when was it built?
Stanford Auxiliary Library Iii has 74,647 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1970 as its year built. It is classed as library.
Is Stanford Auxiliary Library Iii 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, “Stanford Auxiliary Library Iii, Livermore, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/stanford-auxiliary-library-iii-87717545 (data as of July 9, 2026).