1023 S Broadway
Office in California, CA · 1023 South Broadway, Los Angeles · 90015
At a glance
1023 S Broadway is a 240,678-square-foot office building at 1023 South Broadway, Los Angeles in Los Angeles, California, built in 1925. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 96 out of 100 (grade A), a site energy-use intensity of 18.7 kBtu/ft² and 320 tCO₂e of greenhouse-gas emissions. That score is higher than 80% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 96 (band A) |
| Site EUI | 18.7 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 320 tCO₂e |
| GHG intensity | 1.3 kgCO₂e/ft² |
| Electricity | 1,319,945 kWh |
| Gross floor area | 240,678 sq ft |
| Source record | california:6419852:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 96 | -2 | 18.7 kBtu/ft² | 320 tCO₂e |
| 2022 | 98 | ±0 | 14.8 kBtu/ft² | 243 tCO₂e |
| 2021 | 98 | +1 | 15.9 kBtu/ft² | 231 tCO₂e |
| 2020 | 97 | -3 | 18.1 kBtu/ft² | 264 tCO₂e |
| 2019 | 100 | ±0 | 4.0 kBtu/ft² | 67 tCO₂e |
| 2018 | 100 | 0.3 kBtu/ft² | 6 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.
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Location
- Address
- 1023 South Broadway, Los Angeles
- City
- California
- State
- California
- ZIP
- 90015
- Coordinates
- 34.04045, -118.25823
Within ~1 km
Nearby benchmarked buildings
- California Market Centerscore —
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- 110 East 9Th Stscore 100
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- 777 Towerscore 96
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- Hope + Flowerscore 77
Multifamily Housing · 1,096,709 sq ft
See also: most efficient in California · biggest emitters
How does 1023 S Broadway compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 1023 S Broadway's ENERGY STAR score of 96 compares with an average of 75 across the 4,912 that report a score; it scores higher than 80% of them and lower than 18%. Its site EUI of 18.7 kBtu/ft² is about 67% below the average of 56.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.3 kgCO₂e/ft² is about 64% below the group average of 3.6 kgCO₂e/ft².
At 240,678 sq ft, it is about 58% above the average floor area of 151,937 sq ft for those buildings. It was built in 1925, 60 years earlier than the group's average year built (1985). 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 1023 S Broadway's energy performance changed over time?
BuildingCensus holds 6 California disclosures for 1023 S Broadway, covering report years 2018–2023. Its ENERGY STAR score went from 100 in 2018 to 96 in 2023 (-4 points); its best year on file was 2018, at 100. Site EUI moved from 0.3 kBtu/ft² (2018) to 18.7 kBtu/ft² (2023), an 6133% increase. Reported emissions went from 6 tCO₂e to 320 tCO₂e over the same span (up 5315%).
What does an ENERGY STAR score of 96 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 96 means the building performs better than about 96% of its national peers. BuildingCensus bands the score into report-card grades; 96 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 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. 1023 S Broadway's 18.7 kBtu/ft² across 240,678 sq ft works out to about 4.5 billion Btu (1,319 MWh-equivalent) in 2023. The disclosure also reports 1,319,945 kWh of electricity for the year.
Which law requires 1023 S Broadway to report its energy use?
1023 S Broadway 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 2023 disclosure (source record california:6419852:2023). 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 office buildings in California
- Oyster Point Marina Plaza (400)· 240,668 sq ft · score 95 (A)
- Reep-Ofc Von Karman Ca Llc· 240,615 sq ft · score 81 (B)
- 888 Walnut· 240,396 sq ft · score 93 (A)
- Us-Sjc-Ebkw122· 240,322 sq ft · score 78 (B)
- 10900 Wilshire· 239,745 sq ft · score 84 (B)
- 2 Park Plaza· 239,530 sq ft · score 77 (B)
- Office buildings in California· 6,214 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 1023 S Broadway's energy grade?
1023 S Broadway scores 96 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1023 S Broadway use?
Its 2023 site energy-use intensity was 18.7 kBtu/ft² across 240,678 sq ft, including 1,319,945 kWh of electricity.
What are 1023 S Broadway's carbon emissions?
1023 S Broadway reported 320 tCO₂e of greenhouse-gas emissions (1.3 kgCO₂e/ft²) for 2023.
Where is 1023 S Broadway?
1023 S Broadway is at 1023 South Broadway, Los Angeles, in Los Angeles, California 90015. Its coordinates are 34.04045, -118.25823 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 1023 S Broadway and when was it built?
1023 S Broadway has 240,678 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1925 as its year built. It is classed as office.
Is 1023 S Broadway covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2023 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, “1023 S Broadway, Los Angeles, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/1023-s-broadway-61868909 (data as of July 9, 2026).