12457 GLADSTONE AVE
Mixed Use Property in Los Angeles, CA · 91342
At a glance
12457 GLADSTONE AVE is a 41,464-square-foot mixed use property building in Los Angeles, California, built in 1979. In its 2025 Los Angeles benchmarking disclosure it reported a site energy-use intensity of 13.9 kBtu/ft² and 33 tCO₂e of greenhouse-gas emissions.
LA Municipal Code Div. 97, §91.9701 (EBEWE) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 13.9 kBtu/ft² |
| Source EUI | 38.6 kBtu/ft² |
| GHG emissions | 33 tCO₂e |
| GHG intensity | — |
| Water use | 258 kgal |
| Gross floor area | 41,464 sq ft |
| Source record | la:436823930304:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 13.9 kBtu/ft² | 33 tCO₂e | |
| 2024 | — | 13.6 kBtu/ft² | 37 tCO₂e | |
| 2023 | — | 17.7 kBtu/ft² | 49 tCO₂e | |
| 2022 | — | 16.9 kBtu/ft² | 47 tCO₂e | |
| 2021 | — | 18.4 kBtu/ft² | 45 tCO₂e | |
| 2020 | — | — | — | |
| 2019 | — | — | — | |
| 2018 | — | 0.3 kBtu/ft² | 1 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
Triwell Properties
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Location
- Address
- 12457 GLADSTONE AVE
- City
- Los Angeles
- State
- California
- ZIP
- 91342
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 does 12457 GLADSTONE AVE compare with other mixed use property buildings in Los Angeles?
The latest disclosures cover 88 mixed use property buildings in Los Angeles, out of 11,498 buildings citywide. Its site EUI of 13.9 kBtu/ft² is about 64% below the average of 38.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 41,464 sq ft, it is about 67% below the average floor area of 125,193 sq ft for those buildings. It was built in 1979, 9 years later than the group's average year built (1970). Across all 24 jurisdictions BuildingCensus covers, the 1,212 mixed use property buildings average an ENERGY STAR score of 69 and a site EUI of 79.8 kBtu/ft².
How has 12457 GLADSTONE AVE's energy performance changed over time?
BuildingCensus holds 8 Los Angeles disclosures for 12457 GLADSTONE AVE, covering report years 2018–2025. Site EUI moved from 0.3 kBtu/ft² (2018) to 13.9 kBtu/ft² (2025), an 4533% increase. Reported emissions went from 1 tCO₂e to 33 tCO₂e over the same span (up 3567%).
What does a site EUI of 13.9 kBtu/ft² mean?
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. 12457 GLADSTONE AVE's 13.9 kBtu/ft² across 41,464 sq ft works out to about 0.6 billion Btu (169 MWh-equivalent) in 2025. Its source EUI of 38.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 258 thousand gallons of water for the year.
Which law requires 12457 GLADSTONE AVE to report its energy use?
12457 GLADSTONE 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:436823930304:2025). 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 mixed use property buildings in Los Angeles
- 12636 BEATRICE ST· 40,000 sq ft · score 87 (A)
- 431 S FAIRFAX AVE· 40,000 sq ft
- 5941 HOLLYWOOD BLVD· 38,521 sq ft · EUI 22.7 kBtu/ft²
- 5029 S VERMONT AVE· 36,911 sq ft · EUI 24.2 kBtu/ft²
- 3210 HELMS AVE· 35,200 sq ft
- 921 STANFORD AVE· 34,600 sq ft · EUI 20.8 kBtu/ft²
- Mixed Use Property buildings in Los Angeles· 88 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 12457 GLADSTONE AVE's energy grade?
12457 GLADSTONE AVE did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 13.9 kBtu/ft².
How much energy does 12457 GLADSTONE AVE use?
Its 2025 site energy-use intensity was 13.9 kBtu/ft² (38.6 kBtu/ft² source) across 41,464 sq ft.
What are 12457 GLADSTONE AVE's carbon emissions?
12457 GLADSTONE AVE reported 33 tCO₂e of greenhouse-gas emissions for 2025.
Where is 12457 GLADSTONE AVE?
12457 GLADSTONE AVE is in Los Angeles, California 91342.
How big is 12457 GLADSTONE AVE and when was it built?
12457 GLADSTONE AVE has 41,464 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1979 as its year built. It is classed as mixed use property.
Is 12457 GLADSTONE AVE covered by LA Municipal Code Div. 97, §91.9701 (EBEWE)?
Yes — it appears in the 2025 Existing Buildings Energy & Water Efficiency (EBEWE) disclosure, which lists the buildings reporting under LA Municipal Code Div. 97, §91.9701 (EBEWE).
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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, “12457 GLADSTONE AVE, Los Angeles, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/los-angeles/12457-gladstone-ave-d70b007e (data as of October 2, 2026).