515 Whisman
Office in California, CA · 515 North Whisman Road, Mountain View · 94043
At a glance
515 Whisman is a 78,305-square-foot office building at 515 North Whisman Road, Mountain View in Mountain View, California, built in 2000. In its 2024 California benchmarking disclosure it reported a site energy-use intensity of 4.9 kBtu/ft² and 25 tCO₂e of greenhouse-gas emissions.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 4.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 25 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Electricity | 106,735 kWh |
| Natural gas | 174 therms |
| Gross floor area | 78,305 sq ft |
| Source record | california:33639179:2024 |
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
- 515 North Whisman Road, Mountain View
- City
- California
- State
- California
- ZIP
- 94043
- Coordinates
- 37.40214, -122.05654
Within ~1 km
Nearby benchmarked buildings
- 380 Ellis Streetscore —
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- Us-Mtv-Qd1/Qd2/Qd3score —
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- Us-Mtv-Qd4/Qd5/Qd6score —
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- 370 Ellis Streetscore —
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- 690 East Middlefieldscore 70
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- 680 East Middlefieldscore 72
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See also: most efficient in California · biggest emitters
How does 515 Whisman compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Its site EUI of 4.9 kBtu/ft² is about 91% below the average of 56.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.3 kgCO₂e/ft² is about 91% below the group average of 3.6 kgCO₂e/ft².
At 78,305 sq ft, it is about half of the average floor area of 151,937 sq ft for those buildings. It was built in 2000, 15 years later than the group's average year built (1985). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
What does a site EUI of 4.9 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. 515 Whisman's 4.9 kBtu/ft² across 78,305 sq ft works out to about 0.4 billion Btu (112 MWh-equivalent) in 2024. The disclosure also reports 106,735 kWh of electricity and 174 therms of natural gas for the year.
Which law requires 515 Whisman to report its energy use?
515 Whisman 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:33639179:2024). 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 office buildings in California
- Arques Business Park I· 78,251 sq ft
- Sutter Health-2200 River Plaza Drive· 78,199 sq ft · score 92 (A)
- Oakland Office And Cso 322502_7875· 78,198 sq ft · score 100 (A)
- 111 N. La Brea Plaza - 101· 78,176 sq ft · score 100 (A)
- Fontanoso· 78,119 sq ft · score 25 (D)
- 150 N Hill· 78,079 sq ft · score 84 (B)
- Office buildings in California· 6,214 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 515 Whisman's energy grade?
515 Whisman did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 4.9 kBtu/ft².
How much energy does 515 Whisman use?
Its 2024 site energy-use intensity was 4.9 kBtu/ft² across 78,305 sq ft, including 106,735 kWh of electricity and 174 therms of natural gas.
What are 515 Whisman's carbon emissions?
515 Whisman reported 25 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2024.
Where is 515 Whisman?
515 Whisman is at 515 North Whisman Road, Mountain View, in Mountain View, California 94043. Its coordinates are 37.40214, -122.05654 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 515 Whisman and when was it built?
515 Whisman has 78,305 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2000 as its year built. It is classed as office.
Is 515 Whisman 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, “515 Whisman, Mountain View, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/515-whisman-04448bd3 (data as of July 9, 2026).