Island Club (Sl39)
Multifamily Housing in California, CA · 2300 Catalina Circle, Oceanside · 92056
At a glance
Island Club (Sl39) is a 433,683-square-foot multifamily housing building at 2300 Catalina Circle, Oceanside in Oceanside, California, built in 2016. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 86 out of 100 (grade A), a site energy-use intensity of 40.5 kBtu/ft² and 1,057 tCO₂e of greenhouse-gas emissions. That score is higher than 40% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 86 (band A) |
| Site EUI | 40.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 1,057 tCO₂e |
| GHG intensity | 2.4 kgCO₂e/ft² |
| Electricity | 2,469,002 kWh |
| Natural gas | 93,812 therms |
| Gross floor area | 433,683 sq ft |
| Source record | california:6681989:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 86 | -4 | 40.5 kBtu/ft² | 1,057 tCO₂e |
| 2023 | 90 | +10 | 40.3 kBtu/ft² | 1,079 tCO₂e |
| 2022 | 80 | -5 | 38.8 kBtu/ft² | 1,078 tCO₂e |
| 2021 | 85 | +6 | 36.0 kBtu/ft² | 891 tCO₂e |
| 2020 | 79 | -7 | 39.5 kBtu/ft² | 1,022 tCO₂e |
| 2019 | 86 | 37.4 kBtu/ft² | 1,000 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
- 2300 Catalina Circle, Oceanside
- City
- California
- State
- California
- ZIP
- 92056
- Coordinates
- 33.22021, -117.26394
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Island Club (Sl39) 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. Island Club (Sl39)'s ENERGY STAR score of 86 compares with an average of 82 across the 9,612 that report a score; it scores higher than 40% of them and lower than 58%. Its site EUI of 40.5 kBtu/ft² is about 18% above the average of 34.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 2.4 kgCO₂e/ft² is about 16% above the group average of 2.1 kgCO₂e/ft².
At 433,683 sq ft, it is about 187% above the average floor area of 150,919 sq ft for those buildings. It was built in 2016, 28 years later 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.
How has Island Club (Sl39)'s energy performance changed over time?
BuildingCensus holds 6 California disclosures for Island Club (Sl39), covering report years 2019–2024. Its ENERGY STAR score was 86 in both 2019 and 2024. Site EUI moved from 37.4 kBtu/ft² (2019) to 40.5 kBtu/ft² (2024), an 8% increase. Reported emissions went from 1,000 tCO₂e to 1,057 tCO₂e over the same span (up 6%).
What does an ENERGY STAR score of 86 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 86 means the building performs better than about 86% of its national peers. BuildingCensus bands the score into report-card grades; 86 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. Island Club (Sl39)'s 40.5 kBtu/ft² across 433,683 sq ft works out to about 17.6 billion Btu (5,148 MWh-equivalent) in 2024. The disclosure also reports 2,469,002 kWh of electricity and 93,812 therms of natural gas for the year.
Which law requires Island Club (Sl39) to report its energy use?
Island Club (Sl39) 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:6681989:2024). 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 multifamily housing buildings in California
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- 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 Island Club (Sl39)'s energy grade?
Island Club (Sl39) scores 86 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 Island Club (Sl39) use?
Its 2024 site energy-use intensity was 40.5 kBtu/ft² across 433,683 sq ft, including 2,469,002 kWh of electricity and 93,812 therms of natural gas.
What are Island Club (Sl39)'s carbon emissions?
Island Club (Sl39) reported 1,057 tCO₂e of greenhouse-gas emissions (2.4 kgCO₂e/ft²) for 2024.
Where is Island Club (Sl39)?
Island Club (Sl39) is at 2300 Catalina Circle, Oceanside, in Oceanside, California 92056. Its coordinates are 33.22021, -117.26394 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Island Club (Sl39) and when was it built?
Island Club (Sl39) has 433,683 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2016 as its year built. It is classed as multifamily housing.
Is Island Club (Sl39) 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, “Island Club (Sl39), Oceanside, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/island-club-sl39-a8603a66 (data as of July 9, 2026).