19401 W PARTHENIA ST

How does 19401 W PARTHENIA 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. 19401 W PARTHENIA ST's ENERGY STAR score of 84 compares with an average of 78 across the 3,344 that report a score; it scores higher than 48% of them and lower than 50%. Its site EUI of 28.5 kBtu/ft² is about 23% below the average of 37.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 344,395 sq ft, it is about 469% above the average floor area of 60,540 sq ft for those buildings. It was built in 2000, 25 years later 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 19401 W PARTHENIA ST's energy performance changed over time?

BuildingCensus holds 9 Los Angeles disclosures for 19401 W PARTHENIA ST, covering report years 2017–2025. Its ENERGY STAR score went from 100 in 2017 to 84 in 2025 (-16 points); its best year on file was 2017, at 100. Site EUI moved from 16.0 kBtu/ft² (2017) to 28.5 kBtu/ft² (2025), an 78% increase. Reported emissions went from 243 tCO₂e to 543 tCO₂e over the same span (up 124%).

What does an ENERGY STAR score of 84 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 84 means the building performs better than about 84% of its national peers. BuildingCensus bands the score into report-card grades; 84 falls in band B — above median (70–84). 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. 19401 W PARTHENIA ST's 28.5 kBtu/ft² across 344,395 sq ft works out to about 9.8 billion Btu (2,877 MWh-equivalent) in 2025. Its source EUI of 56.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 12,016 thousand gallons of water for the year.

Which law requires 19401 W PARTHENIA ST to report its energy use?

19401 W PARTHENIA 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:112217100577:2025). 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.