Le Tournesol Apartments

How does Le Tournesol Apartments 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. Le Tournesol Apartments'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 24.9 kBtu/ft² is about 28% 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 1.3 kgCO₂e/ft² is about 37% below the group average of 2.1 kgCO₂e/ft².

At 73,132 sq ft, it is about half of the average floor area of 150,919 sq ft for those buildings. It was built in 1968, 20 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.

How has Le Tournesol Apartments's energy performance changed over time?

BuildingCensus holds 2 California disclosures for Le Tournesol Apartments, covering report years 2023–2024. Its ENERGY STAR score was 100 in both 2023 and 2024. Site EUI moved from 26.5 kBtu/ft² (2023) to 24.9 kBtu/ft² (2024), a 6% decrease. Reported emissions went from 107 tCO₂e to 97 tCO₂e over the same span (down 9%).

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. Le Tournesol Apartments's 24.9 kBtu/ft² across 73,132 sq ft works out to about 1.8 billion Btu (534 MWh-equivalent) in 2024. The disclosure also reports 139,011 kWh of electricity and 12,403 therms of natural gas for the year.

Which law requires Le Tournesol Apartments to report its energy use?

Le Tournesol Apartments 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:36065611:2024). 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.