23522 Antonio Pkwy
Multifamily Housing in California, CA · 23522 Antonio Pkwy, Rancho Santa Margarita · 92688
At a glance
23522 Antonio Pkwy is a 30,492-square-foot multifamily housing building at 23522 Antonio Pkwy, Rancho Santa Margarita in Rancho Santa Margarita, California, built in 1970. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 11.5 kBtu/ft² and 25 tCO₂e of greenhouse-gas emissions. That score is higher than 76% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 11.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 25 tCO₂e |
| GHG intensity | 0.8 kgCO₂e/ft² |
| Electricity | 94,033 kWh |
| Natural gas | 336 therms |
| Gross floor area | 30,492 sq ft |
| Source record | california:6869611:2023 |
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
- 23522 Antonio Pkwy, Rancho Santa Margarita
- City
- California
- State
- California
- ZIP
- 92688
- Coordinates
- 33.62041, -117.60972
Within ~1 km
Nearby benchmarked buildings
- Arroyo Vista K8score —
K-12 School · 91,111 sq ft
See also: most efficient in California · biggest emitters
How does 23522 Antonio Pkwy compare with other multifamily housing buildings in California?
The latest disclosures cover 10,630 multifamily housing buildings in California, out of 40,029 buildings citywide. 23522 Antonio Pkwy's ENERGY STAR score of 100 compares with an average of 82 across the 9,612 that report a score; it scores higher than 76% of them. Its site EUI of 11.5 kBtu/ft² is about 67% below the average of 34.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.8 kgCO₂e/ft² is about 62% below the group average of 2.1 kgCO₂e/ft².
At 30,492 sq ft, it is about 80% below the average floor area of 150,919 sq ft for those buildings. It was built in 1970, 18 years earlier than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
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. 23522 Antonio Pkwy's 11.5 kBtu/ft² across 30,492 sq ft works out to about 0.4 billion Btu (103 MWh-equivalent) in 2023. The disclosure also reports 94,033 kWh of electricity and 336 therms of natural gas for the year.
Which law requires 23522 Antonio Pkwy to report its energy use?
23522 Antonio Pkwy 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 2023 disclosure (source record california:6869611:2023). 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 multifamily housing buildings in California
- Villas At Higuera· 30,024 sq ft · score 100 (A)
- The Lofts At Normal Heights· 30,000 sq ft · score 92 (A)
- Oakcrest Heights: Building 2· 29,907 sq ft · score 90 (A)
- Sahara Sands Apartments - Saratoga Capital· 29,654 sq ft · score 56 (C)
- 1116 W 37Th St· 29,654 sq ft · score 92 (A)
- 1104 W 37Th Pl· 29,654 sq ft · score 93 (A)
- Multifamily Housing buildings in California· 10,630 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 23522 Antonio Pkwy's energy grade?
23522 Antonio Pkwy scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 23522 Antonio Pkwy use?
Its 2023 site energy-use intensity was 11.5 kBtu/ft² across 30,492 sq ft, including 94,033 kWh of electricity and 336 therms of natural gas.
What are 23522 Antonio Pkwy's carbon emissions?
23522 Antonio Pkwy reported 25 tCO₂e of greenhouse-gas emissions (0.8 kgCO₂e/ft²) for 2023.
Where is 23522 Antonio Pkwy?
23522 Antonio Pkwy is at 23522 Antonio Pkwy, Rancho Santa Margarita, in Rancho Santa Margarita, California 92688. Its coordinates are 33.62041, -117.60972 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 23522 Antonio Pkwy and when was it built?
23522 Antonio Pkwy has 30,492 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1970 as its year built. It is classed as multifamily housing.
Is 23522 Antonio Pkwy covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2023 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, “23522 Antonio Pkwy, Rancho Santa Margarita, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/23522-antonio-pkwy-33c0978e (data as of July 9, 2026).