4151 PROSPECT AVE
Mixed Use Property in Los Angeles, CA · 90027
At a glance
4151 PROSPECT AVE is a 689,799-square-foot mixed use property building in Los Angeles, California, built in 1914. In its 2017 Los Angeles benchmarking disclosure it reported a site energy-use intensity of 109.6 kBtu/ft² and 4,678 tCO₂e of greenhouse-gas emissions.
LA Municipal Code Div. 97, §91.9701 (EBEWE) · reporting year 2017
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 109.6 kBtu/ft² |
| Source EUI | 203.4 kBtu/ft² |
| GHG emissions | 4,678 tCO₂e |
| GHG intensity | — |
| Water use | 5,387 kgal |
| Gross floor area | 689,799 sq ft |
| Source record | la:476452859858:2017 |
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
Disney FS&S
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Location
- Address
- 4151 PROSPECT AVE
- City
- Los Angeles
- State
- California
- ZIP
- 90027
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 4151 PROSPECT 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 109.6 kBtu/ft² is about 187% above the average of 38.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 689,799 sq ft, it is about 451% above the average floor area of 125,193 sq ft for those buildings. It was built in 1914, 56 years earlier 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.
What does a site EUI of 109.6 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. 4151 PROSPECT AVE's 109.6 kBtu/ft² across 689,799 sq ft works out to about 75.6 billion Btu (22,157 MWh-equivalent) in 2017. Its source EUI of 203.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 5,387 thousand gallons of water for the year.
Which law requires 4151 PROSPECT AVE to report its energy use?
4151 PROSPECT 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 2017 disclosure (source record la:476452859858:2017). 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
- 17401 VENTURA BLVD· 420,536 sq ft · EUI 20.9 kBtu/ft²
- 11100 SANTA MONICA BLVD· 348,957 sq ft · score 80 (B)
- 3335 S FIGUEROA ST· 302,158 sq ft · EUI 46.1 kBtu/ft²
- 1221 W 3RD ST· 294,678 sq ft · score 100 (A)
- 545 S FIGUEROA ST· 292,320 sq ft · EUI 118.7 kBtu/ft²
- 1100 WILSHIRE BLVD· 277,000 sq ft · score 19 (D)
- 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 4151 PROSPECT AVE's energy grade?
4151 PROSPECT AVE did not report an ENERGY STAR score in its 2017 disclosure, but its site energy-use intensity was 109.6 kBtu/ft².
How much energy does 4151 PROSPECT AVE use?
Its 2017 site energy-use intensity was 109.6 kBtu/ft² (203.4 kBtu/ft² source) across 689,799 sq ft.
What are 4151 PROSPECT AVE's carbon emissions?
4151 PROSPECT AVE reported 4,678 tCO₂e of greenhouse-gas emissions for 2017.
Where is 4151 PROSPECT AVE?
4151 PROSPECT AVE is in Los Angeles, California 90027.
How big is 4151 PROSPECT AVE and when was it built?
4151 PROSPECT AVE has 689,799 sq ft of gross floor area, as reported in its 2017 disclosure. The disclosure lists 1914 as its year built. It is classed as mixed use property.
Is 4151 PROSPECT AVE covered by LA Municipal Code Div. 97, §91.9701 (EBEWE)?
Yes — it appears in the 2017 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, “4151 PROSPECT AVE, Los Angeles, California — 2017 benchmarking disclosure”, https://buildingcensus.com/buildings/los-angeles/4151-prospect-ave-52a859fb (data as of October 2, 2026).