Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca
Data Center in California, CA · 21350 Cabot Boulevard, Hayward · 94545
At a glance
Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca is a 53,505-square-foot data center at 21350 Cabot Boulevard, Hayward in Hayward, California, built in 1983. In its 2024 California benchmarking disclosure it reported a site energy-use intensity of 564.3 kBtu/ft² and 1,997 tCO₂e of greenhouse-gas emissions.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 564.3 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 1,997 tCO₂e |
| GHG intensity | 37.3 kgCO₂e/ft² |
| Electricity | 8,747,576 kWh |
| Natural gas | 3,136 therms |
| Gross floor area | 53,505 sq ft |
| Source record | california:6007590:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 564.3 kBtu/ft² | 1,997 tCO₂e | |
| 2023 | — | 575.1 kBtu/ft² | 2,179 tCO₂e | |
| 2022 | — | 545.5 kBtu/ft² | 2,000 tCO₂e | |
| 2021 | — | 529.5 kBtu/ft² | 1,711 tCO₂e | |
| 2020 | — | 511.6 kBtu/ft² | 1,809 tCO₂e | |
| 2019 | — | 499.0 kBtu/ft² | 1,877 tCO₂e | |
| 2018 | — | 510.4 kBtu/ft² | 1,920 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
- 21350 Cabot Boulevard, Hayward
- City
- California
- State
- California
- ZIP
- 94545
- Coordinates
- 37.64233, -122.13575
Within ~1 km
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- Brittania - 23411 Cabotscore —
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See also: most efficient in California · biggest emitters
How does Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca compare with other data center buildings in California?
The latest disclosures cover 112 data center buildings in California, out of 40,029 buildings citywide. Its site EUI of 564.3 kBtu/ft² is about 32% below the average of 832.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 37.3 kgCO₂e/ft² is about 32% below the group average of 54.8 kgCO₂e/ft².
At 53,505 sq ft, it is about 64% below the average floor area of 147,240 sq ft for those buildings. It was built in 1983, 8 years earlier than the group's average year built (1991). Across all 24 jurisdictions BuildingCensus covers, the 267 data center buildings average an ENERGY STAR score of 68 and a site EUI of 504.4 kBtu/ft².
How has Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca's energy performance changed over time?
BuildingCensus holds 7 California disclosures for Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca, covering report years 2018–2024. Site EUI moved from 510.4 kBtu/ft² (2018) to 564.3 kBtu/ft² (2024), an 11% increase. Reported emissions went from 1,920 tCO₂e to 1,997 tCO₂e over the same span (up 4%).
What does a site EUI of 564.3 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. Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca's 564.3 kBtu/ft² across 53,505 sq ft works out to about 30.2 billion Btu (8,849 MWh-equivalent) in 2024. The disclosure also reports 8,747,576 kWh of electricity and 3,136 therms of natural gas for the year.
Which law requires Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca to report its energy use?
Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca 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:6007590:2024). 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 data center buildings in California
- Sna1· 53,300 sq ft · EUI 770.2 kBtu/ft²
- 1500 Space Park Dr· 51,615 sq ft
- Sfo4-A (Santa Clara, Ca) Centersquare· 51,615 sq ft · EUI 901.9 kBtu/ft²
- Coresite Sv3· 51,105 sq ft · score 98 (A)
- 9725 Scranton Road· 51,058 sq ft · EUI 606.8 kBtu/ft²
- Ca 1075 Triangle Ct West Sacramento - Ca0197· 51,025 sq ft · EUI 492.2 kBtu/ft²
- Data Center buildings in California· 112 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 Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca's energy grade?
Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 564.3 kBtu/ft².
How much energy does Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca use?
Its 2024 site energy-use intensity was 564.3 kBtu/ft² across 53,505 sq ft, including 8,747,576 kWh of electricity and 3,136 therms of natural gas.
What are Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca's carbon emissions?
Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca reported 1,997 tCO₂e of greenhouse-gas emissions (37.3 kgCO₂e/ft²) for 2024.
Where is Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca?
Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca is at 21350 Cabot Boulevard, Hayward, in Hayward, California 94545. Its coordinates are 37.64233, -122.13575 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca and when was it built?
Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca has 53,505 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1983 as its year built. It is classed as data center.
Is Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca 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, “Co/Glc Hawdca/21350 Cabot Blvd/Hayward/Ca, Hayward, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/co-glc-hawdca-21350-cabot-blvd-hayward-ca-c2f1de9b (data as of July 9, 2026).