401 S MARIPOSA AVE
Multifamily Housing in Los Angeles, CA · 90020
At a glance
401 S MARIPOSA AVE is a 24,792-square-foot multifamily housing building in Los Angeles, California, built in 1967. It is listed in the 2025 Existing Buildings Energy & Water Efficiency (EBEWE) disclosure without energy figures: no ENERGY STAR score, energy use or emissions were published for it that year. Its most recent reported figures are from 2024, when it scored 98 out of 100 on ENERGY STAR with a site EUI of 29.6 kBtu/ft².
No energy data reported for 2025
401 S MARIPOSA AVE appears in the 2025 Existing Buildings Energy & Water Efficiency (EBEWE) disclosure, but no ENERGY STAR score, energy use or emissions were published for it — the building did not report benchmarking data for that year. Earlier reported years are in the table below.
Floor area on file: 24,792 sq ft · Built 1967
Source record la:470986846893:2025
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | — | — | |
| 2024 | 98 | +8 | 29.6 kBtu/ft² | 40 tCO₂e |
| 2023 | 90 | 35.3 kBtu/ft² | 50 tCO₂e | |
| 2022 | — | 9.0 kBtu/ft² | 15 tCO₂e | |
| 2021 | — | 8.7 kBtu/ft² | 15 tCO₂e | |
| 2020 | — | 9.4 kBtu/ft² | 16 tCO₂e | |
| 2019 | — | 8.6 kBtu/ft² | 13 tCO₂e | |
| 2018 | — | 8.8 kBtu/ft² | 15 tCO₂e |
Compliance context
LA Municipal Code Div. 97, §91.9701 (EBEWE)
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.
Ownership
Roxbury Management Company
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Location
- Address
- 401 S MARIPOSA AVE
- City
- Los Angeles
- State
- California
- ZIP
- 90020
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in Los Angeles · biggest emitters
How has 401 S MARIPOSA AVE's energy performance changed over time?
BuildingCensus holds 8 Los Angeles disclosures for 401 S MARIPOSA AVE, covering report years 2018–2025. Its ENERGY STAR score went from 90 in 2023 to 98 in 2024 (+8 points). Site EUI moved from 8.8 kBtu/ft² (2018) to 29.6 kBtu/ft² (2024), an 236% increase. Reported emissions went from 15 tCO₂e to 40 tCO₂e over the same span (up 174%).
Which law requires 401 S MARIPOSA AVE to report its energy use?
401 S MARIPOSA AVE 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:470986846893:2025). 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.
More multifamily housing buildings in Los Angeles
- 16850 CHATSWORTH ST· 24,787 sq ft · score 48 (D)
- 15815 SATICOY ST· 24,784 sq ft · score 23 (D)
- 14350 VANOWEN ST· 24,781 sq ft · score 67 (C)
- 10051 PINEWOOD AVE· 24,769 sq ft · score 96 (A)
- 309 S SHERBOURNE DR· 24,755 sq ft · score 66 (C)
- 862 S CATALINA ST· 24,752 sq ft · score 96 (A)
- Multifamily Housing buildings in Los Angeles· 3,538 benchmarked
- All Los Angeles benchmarked buildings· LA Municipal Code Div. 97, §91.9701 (EBEWE)
- Most efficient large buildings in Los Angeles
- Least efficient large buildings in Los Angeles
- Biggest emitters in Los Angeles
Frequently asked questions
What is 401 S MARIPOSA AVE's energy grade?
401 S MARIPOSA AVE has no grade: it did not report energy data for 2025. The 2025 Existing Buildings Energy & Water Efficiency (EBEWE) disclosure lists the building but publishes no ENERGY STAR score, energy use or emissions for it.
Where is 401 S MARIPOSA AVE?
401 S MARIPOSA AVE is in Los Angeles, California 90020.
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About this data
Source: Existing Buildings Energy & Water Efficiency (EBEWE) (LA Municipal Code Div. 97, §91.9701 (EBEWE)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “401 S MARIPOSA AVE, Los Angeles, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/los-angeles/401-s-mariposa-ave-fa822934 (data as of October 2, 2026).