18543 CLARK ST

How does 18543 CLARK ST compare with other multifamily housing buildings in Los Angeles?

The latest disclosures cover 3,538 multifamily housing buildings in Los Angeles, out of 11,498 buildings citywide. 18543 CLARK ST's ENERGY STAR score of 90 compares with an average of 78 across the 3,344 that report a score; it scores higher than 59% of them and lower than 39%. Its site EUI of 30.7 kBtu/ft² is about 17% below the average of 37.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 29,884 sq ft, it is about half of the average floor area of 60,540 sq ft for those buildings. It was built in 1962, 13 years earlier than the group's average year built (1975). 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 18543 CLARK ST's energy performance changed over time?

BuildingCensus holds 8 Los Angeles disclosures for 18543 CLARK ST, covering report years 2018–2025. Its ENERGY STAR score went from 49 in 2018 to 90 in 2025 (+41 points); its best year on file was 2022, at 98. Site EUI moved from 45.1 kBtu/ft² (2018) to 30.7 kBtu/ft² (2025), a 32% decrease. Reported emissions went from 81 tCO₂e to 50 tCO₂e over the same span (down 38%).

What does an ENERGY STAR score of 90 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 90 means the building performs better than about 90% of its national peers. BuildingCensus bands the score into report-card grades; 90 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 Los Angeles, 63% 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. 18543 CLARK ST's 30.7 kBtu/ft² across 29,884 sq ft works out to about 0.9 billion Btu (269 MWh-equivalent) in 2025. Its source EUI of 58.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,134 thousand gallons of water for the year.

Which law requires 18543 CLARK ST to report its energy use?

18543 CLARK ST reports under LA Municipal Code Div. 97, §91.9701 (EBEWE), the legal basis of Los Angeles's Existing Buildings Energy & Water Efficiency (EBEWE) program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record la:399149885151:2025). EBEWE requires annual benchmarking plus audits/retro-commissioning every five years for privately owned buildings of 20,000 sq ft or more; non-compliance carries a $202 fee (LAMC §91.9712) plus possible late fees.