Ca3761 - Chapman Medical Offices
Medical Office in California, CA · 4201 West Chapman Avenue, Orange · 92868
At a glance
Ca3761 - Chapman Medical Offices is a 54,366-square-foot medical office at 4201 West Chapman Avenue, Orange in Orange, California, built in 1978. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 14 out of 100 (grade D), a site energy-use intensity of 113.1 kBtu/ft² and 370 tCO₂e of greenhouse-gas emissions. That score is higher than 14% of the 546 scored medical office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 14 (band D) |
| Site EUI | 113.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 370 tCO₂e |
| GHG intensity | 6.8 kgCO₂e/ft² |
| Electricity | 1,178,609 kWh |
| Natural gas | 19,436 therms |
| Gross floor area | 54,366 sq ft |
| Source record | california:2551380:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 14 | -2 | 113.1 kBtu/ft² | 370 tCO₂e |
| 2023 | 16 | +2 | 109.8 kBtu/ft² | 389 tCO₂e |
| 2022 | 14 | +2 | 117.0 kBtu/ft² | 415 tCO₂e |
| 2021 | 12 | -3 | 124.8 kBtu/ft² | 394 tCO₂e |
| 2020 | 15 | +4 | 120.1 kBtu/ft² | 406 tCO₂e |
| 2018 | 11 | 123.4 kBtu/ft² | 431 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
- 4201 West Chapman Avenue, Orange
- City
- California
- State
- California
- ZIP
- 92868
- Coordinates
- 33.78925, -117.89878
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Ca3761 - Chapman Medical Offices compare with other medical office buildings in California?
The latest disclosures cover 602 medical office buildings in California, out of 40,029 buildings citywide. Ca3761 - Chapman Medical Offices's ENERGY STAR score of 14 compares with an average of 63 across the 546 that report a score; it scores higher than 14% of them and lower than 85%. Its site EUI of 113.1 kBtu/ft² is about 20% above the average of 94.3 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 6.8 kgCO₂e/ft² is about 22% above the group average of 5.6 kgCO₂e/ft².
At 54,366 sq ft, it is about half of the average floor area of 100,847 sq ft for those buildings. It was built in 1978, 13 years earlier than the group's average year built (1991). Across all 24 jurisdictions BuildingCensus covers, the 1,266 medical office buildings average an ENERGY STAR score of 64 and a site EUI of 92.2 kBtu/ft².
How has Ca3761 - Chapman Medical Offices's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Ca3761 - Chapman Medical Offices, covering report years 2018, 2020, 2021, 2022, 2023, 2024. Its ENERGY STAR score went from 11 in 2018 to 14 in 2024 (+3 points); its best year on file was 2023, at 16. Site EUI moved from 123.4 kBtu/ft² (2018) to 113.1 kBtu/ft² (2024), a 8% decrease. Reported emissions went from 431 tCO₂e to 370 tCO₂e over the same span (down 14%).
What does an ENERGY STAR score of 14 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 14 means the building performs better than about 14% of its national peers. BuildingCensus bands the score into report-card grades; 14 falls in band D — lowest band (1–54). It sits 61 points below 75, the threshold for ENERGY STAR certification. 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. Ca3761 - Chapman Medical Offices's 113.1 kBtu/ft² across 54,366 sq ft works out to about 6.1 billion Btu (1,802 MWh-equivalent) in 2024. The disclosure also reports 1,178,609 kWh of electricity and 19,436 therms of natural gas for the year.
Which law requires Ca3761 - Chapman Medical Offices to report its energy use?
Ca3761 - Chapman Medical Offices 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:2551380:2024). 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 medical office buildings in California
- Adventist-Ahgl-1560 E. Chevy Chase Dr· 54,217 sq ft · score 38 (D)
- Harbor Ucla Professional Building (Mfi) (Ab 802)· 54,087 sq ft · score 98 (A)
- Cevis· 53,950 sq ft · score 61 (C)
- West Hills Mob· 53,906 sq ft · score 97 (A)
- 1125 S Beverly Dr, Los Angeles, Ca 90035· 53,900 sq ft · score 21 (D)
- Parkstone Center - 2101 Stone Blvd, West Sacramento, Ca 95691· 53,846 sq ft · score 64 (C)
- Medical Office buildings in California· 602 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 Ca3761 - Chapman Medical Offices's energy grade?
Ca3761 - Chapman Medical Offices scores 14 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Ca3761 - Chapman Medical Offices use?
Its 2024 site energy-use intensity was 113.1 kBtu/ft² across 54,366 sq ft, including 1,178,609 kWh of electricity and 19,436 therms of natural gas.
What are Ca3761 - Chapman Medical Offices's carbon emissions?
Ca3761 - Chapman Medical Offices reported 370 tCO₂e of greenhouse-gas emissions (6.8 kgCO₂e/ft²) for 2024.
Where is Ca3761 - Chapman Medical Offices?
Ca3761 - Chapman Medical Offices is at 4201 West Chapman Avenue, Orange, in Orange, California 92868. Its coordinates are 33.78925, -117.89878 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Ca3761 - Chapman Medical Offices and when was it built?
Ca3761 - Chapman Medical Offices has 54,366 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1978 as its year built. It is classed as medical office.
Is Ca3761 - Chapman Medical Offices 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, “Ca3761 - Chapman Medical Offices, Orange, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/ca3761-chapman-medical-offices-e96cfe79 (data as of July 9, 2026).