800 Concar Drive
Office in California, CA · 800 Concar Drive, San Mateo · 94402
At a glance
800 Concar Drive is a 98,350-square-foot office building at 800 Concar Drive, San Mateo in San Mateo, California, built in 2002. In its 2018 California benchmarking disclosure it reported an ENERGY STAR score of 97 out of 100 (grade A), a site energy-use intensity of 48.6 kBtu/ft² and 302 tCO₂e of greenhouse-gas emissions. That score is higher than 82% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2018
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 97 (band A) |
| Site EUI | 48.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 302 tCO₂e |
| GHG intensity | 3.1 kgCO₂e/ft² |
| Electricity | 918,040 kWh |
| Natural gas | 15,282 therms |
| Gross floor area | 98,350 sq ft |
| Source record | california:6372580:2018 |
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.
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Location
- Address
- 800 Concar Drive, San Mateo
- City
- California
- State
- California
- ZIP
- 94402
- Coordinates
- 37.55497, -122.30038
Within ~1 km
Nearby benchmarked buildings
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- Marriott San Mateoscore 47
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- 400 & 450 Concar Drivescore 66
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- Delaware Atlanticscore 98
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See also: most efficient in California · biggest emitters
How does 800 Concar Drive compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 800 Concar Drive's ENERGY STAR score of 97 compares with an average of 75 across the 4,912 that report a score; it scores higher than 82% of them and lower than 15%. Its site EUI of 48.6 kBtu/ft² is about 14% 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 3.1 kgCO₂e/ft² is about 15% below the group average of 3.6 kgCO₂e/ft².
At 98,350 sq ft, it is about 35% below the average floor area of 151,937 sq ft for those buildings. It was built in 2002, 17 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 an ENERGY STAR score of 97 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 97 means the building performs better than about 97% of its national peers. BuildingCensus bands the score into report-card grades; 97 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In California, 65% of scored buildings are at 75 or above.
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. 800 Concar Drive's 48.6 kBtu/ft² across 98,350 sq ft works out to about 4.8 billion Btu (1,401 MWh-equivalent) in 2018. The disclosure also reports 918,040 kWh of electricity and 15,282 therms of natural gas for the year.
Which law requires 800 Concar Drive to report its energy use?
800 Concar Drive 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 2018 disclosure (source record california:6372580:2018). 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
- Carlsbad E3· 98,345 sq ft · score 19 (D)
- Carlsbad E3· 98,344 sq ft · EUI 59.9 kBtu/ft²
- 2301, 2301 Dupont Drive, Irvine· 98,307 sq ft · score 68 (C)
- 451 East Vanderbilt Way· 98,280 sq ft · score 80 (B)
- 2801 W Mission Rd, Alhambra, Ca 91803· 98,280 sq ft · score 100 (A)
- Six Thousand Sixty Building· 98,260 sq ft · score 90 (A)
- 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 800 Concar Drive's energy grade?
800 Concar Drive scores 97 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2018 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 800 Concar Drive use?
Its 2018 site energy-use intensity was 48.6 kBtu/ft² across 98,350 sq ft, including 918,040 kWh of electricity and 15,282 therms of natural gas.
What are 800 Concar Drive's carbon emissions?
800 Concar Drive reported 302 tCO₂e of greenhouse-gas emissions (3.1 kgCO₂e/ft²) for 2018.
Where is 800 Concar Drive?
800 Concar Drive is at 800 Concar Drive, San Mateo, in San Mateo, California 94402. Its coordinates are 37.55497, -122.30038 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 800 Concar Drive and when was it built?
800 Concar Drive has 98,350 sq ft of gross floor area, as reported in its 2018 disclosure. The disclosure lists 2002 as its year built. It is classed as office.
Is 800 Concar Drive covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2018 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, “800 Concar Drive, San Mateo, California — 2018 benchmarking disclosure”, https://buildingcensus.com/buildings/california/800-concar-drive-921fd40f (data as of July 9, 2026).