Villa Serena Apartments (Vs64)

How does Villa Serena Apartments (Vs64) 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. Villa Serena Apartments (Vs64)'s ENERGY STAR score of 31 compares with an average of 82 across the 9,612 that report a score; it scores higher than 5% of them and lower than 95%. Its site EUI of 56.2 kBtu/ft² is about 63% 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 3.5 kgCO₂e/ft² is about 65% above the group average of 2.1 kgCO₂e/ft².

At 86,340 sq ft, it is about 43% below the average floor area of 150,919 sq ft for those buildings. It was built in 2000, 12 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.

What does an ENERGY STAR score of 31 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 31 means the building performs better than about 31% of its national peers. BuildingCensus bands the score into report-card grades; 31 falls in band D — lowest band (1–54). It sits 44 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. Villa Serena Apartments (Vs64)'s 56.2 kBtu/ft² across 86,340 sq ft works out to about 4.9 billion Btu (1,422 MWh-equivalent) in 2024. The disclosure also reports 588,564 kWh of electricity and 31,110 therms of natural gas for the year.

Which law requires Villa Serena Apartments (Vs64) to report its energy use?

Villa Serena Apartments (Vs64) 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:37108362:2024). 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.