21230 LASSEN ST

How does 21230 LASSEN ST compare with other office buildings in Los Angeles?

The latest disclosures cover 676 office buildings in Los Angeles, out of 11,498 buildings citywide. 21230 LASSEN ST's ENERGY STAR score of 100 compares with an average of 77 across the 591 that report a score; it scores higher than 90% of them. Its site EUI of 7.8 kBtu/ft² is about 82% below the average of 44.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 26,300 sq ft, it is about 82% below the average floor area of 147,328 sq ft for those buildings. It was built in 1982, 7 years later than the group's average year built (1975). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².

How has 21230 LASSEN ST's energy performance changed over time?

BuildingCensus holds 8 Los Angeles disclosures for 21230 LASSEN ST, covering report years 2018–2025. Its ENERGY STAR score went from 12 in 2018 to 100 in 2025 (+88 points); its best year on file was 2024, at 100. Site EUI moved from 31.5 kBtu/ft² (2018) to 7.8 kBtu/ft² (2025), a 75% decrease. Reported emissions went from 58 tCO₂e to 12 tCO₂e over the same span (down 80%).

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 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. 21230 LASSEN ST's 7.8 kBtu/ft² across 26,300 sq ft works out to about 0.2 billion Btu (60 MWh-equivalent) in 2025. Its source EUI of 18.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 11 thousand gallons of water for the year.

Which law requires 21230 LASSEN ST to report its energy use?

21230 LASSEN 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:381891913610:2025). 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.