Stanwell Airport Center
Office in California, CA · 2655 Stanwell Drive, Concord · 94520
At a glance
Stanwell Airport Center is a 59,300-square-foot office building at 2655 Stanwell Drive, Concord in Concord, California, built in 1984. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 5.2 kBtu/ft² and 20 tCO₂e of greenhouse-gas emissions. That score is higher than 91% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 5.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 20 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Electricity | 89,816 kWh |
| Gross floor area | 59,300 sq ft |
| Source record | california:31463130:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 5.2 kBtu/ft² | 20 tCO₂e |
| 2023 | 100 | 6.1 kBtu/ft² | 26 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.
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Location
- Address
- 2655 Stanwell Drive, Concord
- City
- California
- State
- California
- ZIP
- 94520
- Coordinates
- 37.98860, -122.04832
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Stanwell Airport Center compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Stanwell Airport Center's ENERGY STAR score of 100 compares with an average of 75 across the 4,912 that report a score; it scores higher than 91% of them. Its site EUI of 5.2 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 59,300 sq ft, it is about 61% below the average floor area of 151,937 sq ft for those buildings. Its 1984 construction date is close to 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.
How has Stanwell Airport Center's energy performance changed over time?
BuildingCensus holds 2 California disclosures for Stanwell Airport Center, covering report years 2023–2024. Its ENERGY STAR score was 100 in both 2023 and 2024. Site EUI moved from 6.1 kBtu/ft² (2023) to 5.2 kBtu/ft² (2024), a 15% decrease. Reported emissions went from 26 tCO₂e to 20 tCO₂e over the same span (down 21%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. Stanwell Airport Center's 5.2 kBtu/ft² across 59,300 sq ft works out to about 0.3 billion Btu (90 MWh-equivalent) in 2024. The disclosure also reports 89,816 kWh of electricity for the year.
Which law requires Stanwell Airport Center to report its energy use?
Stanwell Airport Center 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:31463130:2024). 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
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- 12707 High Bluff - Junction At Del Mar 1· 59,245 sq ft · score 94 (A)
- Br44292-Santa Clara Commerce Park - 2340-2348 Walsh Avenue· 59,209 sq ft · score 61 (C)
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- 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 Stanwell Airport Center's energy grade?
Stanwell Airport Center scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Stanwell Airport Center use?
Its 2024 site energy-use intensity was 5.2 kBtu/ft² across 59,300 sq ft, including 89,816 kWh of electricity.
What are Stanwell Airport Center's carbon emissions?
Stanwell Airport Center reported 20 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2024.
Where is Stanwell Airport Center?
Stanwell Airport Center is at 2655 Stanwell Drive, Concord, in Concord, California 94520. Its coordinates are 37.98860, -122.04832 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Stanwell Airport Center and when was it built?
Stanwell Airport Center has 59,300 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1984 as its year built. It is classed as office.
Is Stanwell Airport Center 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, “Stanwell Airport Center, Concord, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/stanwell-airport-center-c5b4ab83 (data as of July 9, 2026).