Cn4001 - Fairfield Medical Offices
Medical Office in California, CA · 1550 Gateway Boulevard, Fairfield · 94533
At a glance
Cn4001 - Fairfield Medical Offices is a 53,673-square-foot medical office at 1550 Gateway Boulevard, Fairfield in Fairfield, California, built in 1986. 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 73.6 kBtu/ft² and 241 tCO₂e of greenhouse-gas emissions. That score is higher than 85% 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 | 100 (band A) |
| Site EUI | 73.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 241 tCO₂e |
| GHG intensity | 4.5 kgCO₂e/ft² |
| Electricity | 16,178 kWh |
| Natural gas | 14,792 therms |
| Gross floor area | 53,673 sq ft |
| Source record | california:3592050:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | +1 | 73.6 kBtu/ft² | 241 tCO₂e |
| 2023 | 99 | +36 | 83.7 kBtu/ft² | 281 tCO₂e |
| 2022 | 63 | -37 | 86.6 kBtu/ft² | 288 tCO₂e |
| 2021 | 100 | +8 | 79.8 kBtu/ft² | 245 tCO₂e |
| 2020 | 92 | +58 | 81.9 kBtu/ft² | 268 tCO₂e |
| 2018 | 34 | 110.3 kBtu/ft² | 365 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
- 1550 Gateway Boulevard, Fairfield
- City
- California
- State
- California
- ZIP
- 94533
- Coordinates
- 38.26345, -122.05649
Within ~1 km
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- Fairfield, Ca-0334score 96
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- (71326A) Fairfield Macy'S Ownedscore 96
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- Fairfield Stadium 16score —
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- K.I. Jones Elementaryscore 79
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See also: most efficient in California · biggest emitters
How does Cn4001 - Fairfield 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. Cn4001 - Fairfield Medical Offices's ENERGY STAR score of 100 compares with an average of 63 across the 546 that report a score; it scores higher than 85% of them. Its site EUI of 73.6 kBtu/ft² is about 22% below the average of 94.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.5 kgCO₂e/ft² is about 20% below the group average of 5.6 kgCO₂e/ft².
At 53,673 sq ft, it is about half of the average floor area of 100,847 sq ft for those buildings. It was built in 1986, 5 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 Cn4001 - Fairfield Medical Offices's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Cn4001 - Fairfield Medical Offices, covering report years 2018, 2020, 2021, 2022, 2023, 2024. Its ENERGY STAR score went from 34 in 2018 to 100 in 2024 (+66 points); its best year on file was 2021, at 100. Site EUI moved from 110.3 kBtu/ft² (2018) to 73.6 kBtu/ft² (2024), a 33% decrease. Reported emissions went from 365 tCO₂e to 241 tCO₂e over the same span (down 34%).
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. Cn4001 - Fairfield Medical Offices's 73.6 kBtu/ft² across 53,673 sq ft works out to about 4 billion Btu (1,158 MWh-equivalent) in 2024. The disclosure also reports 16,178 kWh of electricity and 14,792 therms of natural gas for the year.
Which law requires Cn4001 - Fairfield Medical Offices to report its energy use?
Cn4001 - Fairfield 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:3592050:2024). 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
- 18523 Corwin Rd· 53,498 sq ft · score 76 (B)
- Ca6581 - Chino Grand Medical Offices· 53,147 sq ft · score 71 (B)
- 1310 Las Tablas· 52,953 sq ft · score 94 (A)
- 14901 Rinaldi St· 52,926 sq ft · score 80 (B)
- Ca2491 - Rancho Bernardo Medical Offices· 52,911 sq ft · score 43 (D)
- Shso - 100 Rowland Way - Novato· 52,798 sq ft · score 54 (D)
- 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 Cn4001 - Fairfield Medical Offices's energy grade?
Cn4001 - Fairfield Medical Offices 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 Cn4001 - Fairfield Medical Offices use?
Its 2024 site energy-use intensity was 73.6 kBtu/ft² across 53,673 sq ft, including 16,178 kWh of electricity and 14,792 therms of natural gas.
What are Cn4001 - Fairfield Medical Offices's carbon emissions?
Cn4001 - Fairfield Medical Offices reported 241 tCO₂e of greenhouse-gas emissions (4.5 kgCO₂e/ft²) for 2024.
Where is Cn4001 - Fairfield Medical Offices?
Cn4001 - Fairfield Medical Offices is at 1550 Gateway Boulevard, Fairfield, in Fairfield, California 94533. Its coordinates are 38.26345, -122.05649 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Cn4001 - Fairfield Medical Offices and when was it built?
Cn4001 - Fairfield Medical Offices has 53,673 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1986 as its year built. It is classed as medical office.
Is Cn4001 - Fairfield 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, “Cn4001 - Fairfield Medical Offices, Fairfield, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/cn4001-fairfield-medical-offices-f99d7e5d (data as of July 9, 2026).