San Antonio Regional Hospital | Rancho Mob
Medical Office in California, CA · 7777 Milliken Avenue, Rancho Cucamonga · 91730
At a glance
San Antonio Regional Hospital | Rancho Mob is a 72,434-square-foot medical office at 7777 Milliken Avenue, Rancho Cucamonga in Rancho Cucamonga, California, built in 1990. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 12 out of 100 (grade D), a site energy-use intensity of 139.0 kBtu/ft² and 602 tCO₂e of greenhouse-gas emissions. That score is higher than 13% 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 | 12 (band D) |
| Site EUI | 139.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 602 tCO₂e |
| GHG intensity | 8.3 kgCO₂e/ft² |
| Electricity | 1,552,456 kWh |
| Natural gas | 47,120 therms |
| Gross floor area | 72,434 sq ft |
| Source record | california:54460092:2024 |
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.
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Location
- Address
- 7777 Milliken Avenue, Rancho Cucamonga
- City
- California
- State
- California
- ZIP
- 91730
- Coordinates
- 34.10880, -117.55573
Within ~1 km
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See also: most efficient in California · biggest emitters
How does San Antonio Regional Hospital | Rancho Mob compare with other medical office buildings in California?
The latest disclosures cover 602 medical office buildings in California, out of 40,029 buildings citywide. San Antonio Regional Hospital | Rancho Mob's ENERGY STAR score of 12 compares with an average of 63 across the 546 that report a score; it scores higher than 13% of them and lower than 86%. Its site EUI of 139.0 kBtu/ft² is about 47% 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 8.3 kgCO₂e/ft² is about 48% above the group average of 5.6 kgCO₂e/ft².
At 72,434 sq ft, it is about 28% below the average floor area of 100,847 sq ft for those buildings. Its 1990 construction date is close to 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.
What does an ENERGY STAR score of 12 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 12 means the building performs better than about 12% of its national peers. BuildingCensus bands the score into report-card grades; 12 falls in band D — lowest band (1–54). It sits 63 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. San Antonio Regional Hospital | Rancho Mob's 139.0 kBtu/ft² across 72,434 sq ft works out to about 10.1 billion Btu (2,951 MWh-equivalent) in 2024. The disclosure also reports 1,552,456 kWh of electricity and 47,120 therms of natural gas for the year.
Which law requires San Antonio Regional Hospital | Rancho Mob to report its energy use?
San Antonio Regional Hospital | Rancho Mob 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:54460092:2024). 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
- Kern Educare / Dr. Office· 72,288 sq ft · score 100 (A)
- Ca3611 - Tustin Santa Ana Medical Offices· 72,241 sq ft · score 65 (C)
- Pih Health, Downey Campus Mob· 72,193 sq ft · score 67 (C)
- Kagr Escondido, Llc· 72,046 sq ft · score 100 (A)
- Palomar Health Outpatient Center Iii· 72,000 sq ft · score 100 (A)
- Rb Medical Plaza· 71,735 sq ft · score 99 (A)
- 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 San Antonio Regional Hospital | Rancho Mob's energy grade?
San Antonio Regional Hospital | Rancho Mob scores 12 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 San Antonio Regional Hospital | Rancho Mob use?
Its 2024 site energy-use intensity was 139.0 kBtu/ft² across 72,434 sq ft, including 1,552,456 kWh of electricity and 47,120 therms of natural gas.
What are San Antonio Regional Hospital | Rancho Mob's carbon emissions?
San Antonio Regional Hospital | Rancho Mob reported 602 tCO₂e of greenhouse-gas emissions (8.3 kgCO₂e/ft²) for 2024.
Where is San Antonio Regional Hospital | Rancho Mob?
San Antonio Regional Hospital | Rancho Mob is at 7777 Milliken Avenue, Rancho Cucamonga, in Rancho Cucamonga, California 91730. Its coordinates are 34.10880, -117.55573 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is San Antonio Regional Hospital | Rancho Mob and when was it built?
San Antonio Regional Hospital | Rancho Mob has 72,434 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1990 as its year built. It is classed as medical office.
Is San Antonio Regional Hospital | Rancho Mob 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, “San Antonio Regional Hospital | Rancho Mob, Rancho Cucamonga, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/san-antonio-regional-hospital-rancho-mob-5cf2f6fb (data as of July 9, 2026).