510 S. Hewitt Street
Multifamily Housing in California, CA · 510 South Hewitt Street, Los Angeles · 90013
At a glance
510 S. Hewitt Street is a 90,385-square-foot multifamily housing building at 510 South Hewitt Street, Los Angeles in Los Angeles, California, built in 1908. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 11 out of 100 (grade D), a site energy-use intensity of 64.5 kBtu/ft² and 338 tCO₂e of greenhouse-gas emissions. That score is higher than 2% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 11 (band D) |
| Site EUI | 64.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 338 tCO₂e |
| GHG intensity | 3.7 kgCO₂e/ft² |
| Electricity | 531,454 kWh |
| Gross floor area | 90,385 sq ft |
| Source record | california:6546839:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 11 | 64.5 kBtu/ft² | 338 tCO₂e | |
| 2023 | — | 62.8 kBtu/ft² | 339 tCO₂e | |
| 2022 | 100 | ±0 | 11.8 kBtu/ft² | 323 tCO₂e |
| 2021 | 100 | ±0 | 13.2 kBtu/ft² | 364 tCO₂e |
| 2020 | 100 | ±0 | 10.9 kBtu/ft² | 283 tCO₂e |
| 2019 | 100 | 10.2 kBtu/ft² | 273 tCO₂e |
Compliance context
AB 802 (Public Resources Code §25402.10)
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.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 510 South Hewitt Street, Los Angeles
- City
- California
- State
- California
- ZIP
- 90013
- Coordinates
- 34.04205, -118.23485
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 510 S. Hewitt Street 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. 510 S. Hewitt Street's ENERGY STAR score of 11 compares with an average of 82 across the 9,612 that report a score; it scores higher than 2% of them and lower than 98%. Its site EUI of 64.5 kBtu/ft² is about 88% above the average of 34.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 3.7 kgCO₂e/ft² is about 78% above the group average of 2.1 kgCO₂e/ft².
At 90,385 sq ft, it is about 40% below the average floor area of 150,919 sq ft for those buildings. It was built in 1908, 80 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 510 S. Hewitt Street's energy performance changed over time?
BuildingCensus holds 6 California disclosures for 510 S. Hewitt Street, covering report years 2019–2024. Its ENERGY STAR score went from 100 in 2019 to 11 in 2024 (-89 points); its best year on file was 2019, at 100. Site EUI moved from 10.2 kBtu/ft² (2019) to 64.5 kBtu/ft² (2024), an 532% increase. Reported emissions went from 273 tCO₂e to 338 tCO₂e over the same span (up 24%).
What does an ENERGY STAR score of 11 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 11 means the building performs better than about 11% of its national peers. BuildingCensus bands the score into report-card grades; 11 falls in band D — lowest band (1–54). It sits 64 points below 75, the threshold for ENERGY STAR certification. 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. 510 S. Hewitt Street's 64.5 kBtu/ft² across 90,385 sq ft works out to about 5.8 billion Btu (1,709 MWh-equivalent) in 2024. The disclosure also reports 531,454 kWh of electricity for the year.
Which law requires 510 S. Hewitt Street to report its energy use?
510 S. Hewitt Street 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:6546839:2024). 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.
More multifamily housing buildings in California
- Casa Anita (Ca166)· 90,343 sq ft · score 93 (A)
- Country Club Vista Apartments· 90,297 sq ft · score 100 (A)
- Alice Griffith Ii (Lc83)· 90,297 sq ft · score 85 (A)
- Radius 630 - Essex· 90,288 sq ft · score 99 (A)
- Fountain Park Apartments (23739)· 90,284 sq ft · score 96 (A)
- Fairstead: St. Marks· 90,252 sq ft · score 52 (D)
- Multifamily Housing buildings in California· 10,630 benchmarked
- All California benchmarked buildings· AB 802 (Public Resources Code §25402.10)
- Most efficient large buildings in California
- Least efficient large buildings in California
- Biggest emitters in California
Frequently asked questions
What is 510 S. Hewitt Street's energy grade?
510 S. Hewitt Street scores 11 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 510 S. Hewitt Street use?
Its 2024 site energy-use intensity was 64.5 kBtu/ft² across 90,385 sq ft, including 531,454 kWh of electricity.
What are 510 S. Hewitt Street's carbon emissions?
510 S. Hewitt Street reported 338 tCO₂e of greenhouse-gas emissions (3.7 kgCO₂e/ft²) for 2024.
Where is 510 S. Hewitt Street?
510 S. Hewitt Street is at 510 South Hewitt Street, Los Angeles, in Los Angeles, California 90013. Its coordinates are 34.04205, -118.23485 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 510 S. Hewitt Street and when was it built?
510 S. Hewitt Street has 90,385 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1908 as its year built. It is classed as multifamily housing.
Is 510 S. Hewitt Street covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2024 Building Energy Benchmarking Program (statewide) disclosure, which lists the buildings reporting under AB 802 (Public Resources Code §25402.10).
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About this data
Source: Building Energy Benchmarking Program (statewide) (AB 802 (Public Resources Code §25402.10)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “510 S. Hewitt Street, Los Angeles, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/510-s-hewitt-street-fa7d4a07 (data as of July 9, 2026).