18321 CLARK ST
Hospital (General Medical & Surgical) in Los Angeles, CA · 91356
At a glance
18321 CLARK ST is a 403,997-square-foot hospital (general medical & surgical) in Los Angeles, California, built in 1973. In its 2025 Los Angeles benchmarking disclosure it reported an ENERGY STAR score of 64 out of 100 (grade C), a site energy-use intensity of 236.5 kBtu/ft² and 5,253 tCO₂e of greenhouse-gas emissions. That score is higher than 30% of the 20 scored hospital (general medical & surgical) buildings in Los Angeles.
LA Municipal Code Div. 97, §91.9701 (EBEWE) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 64 (band C) |
| Site EUI | 236.5 kBtu/ft² |
| Source EUI | 439.5 kBtu/ft² |
| GHG emissions | 5,253 tCO₂e |
| GHG intensity | — |
| Water use | 23,188 kgal |
| Gross floor area | 403,997 sq ft |
| Source record | la:400432885012:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 64 | -35 | 236.5 kBtu/ft² | 5,253 tCO₂e |
| 2024 | 99 | +2 | 194.5 kBtu/ft² | 4,258 tCO₂e |
| 2023 | 97 | +3 | 208.6 kBtu/ft² | 3,911 tCO₂e |
| 2022 | 94 | +6 | 202.2 kBtu/ft² | 3,849 tCO₂e |
| 2021 | 88 | 223.0 kBtu/ft² | 3,949 tCO₂e | |
| 2020 | — | — | 4,049 tCO₂e | |
| 2019 | 71 | +8 | 261.5 kBtu/ft² | 4,379 tCO₂e |
| 2018 | 63 | 269.0 kBtu/ft² | 4,536 tCO₂e | |
| 2017 | — | — | — | |
| 2016 | — | 266.6 kBtu/ft² | 4,691 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
Providence Health & Services
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Location
- Address
- 18321 CLARK ST
- City
- Los Angeles
- State
- California
- ZIP
- 91356
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 18321 CLARK ST compare with other hospital (general medical & surgical) buildings in Los Angeles?
The latest disclosures cover 24 hospital (general medical & surgical) buildings in Los Angeles, out of 11,498 buildings citywide. 18321 CLARK ST's ENERGY STAR score of 64 compares with an average of 70 across the 20 that report a score; it scores higher than 30% of them and lower than 65%. Its site EUI of 236.5 kBtu/ft² is about 29% above the average of 183.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 403,997 sq ft, it is about 32% above the average floor area of 305,830 sq ft for those buildings. It was built in 1973, 4 years earlier than the group's average year built (1977). Across all 24 jurisdictions BuildingCensus covers, the 748 hospital (general medical & surgical) buildings average an ENERGY STAR score of 59 and a site EUI of 238.7 kBtu/ft².
How has 18321 CLARK ST's energy performance changed over time?
BuildingCensus holds 10 Los Angeles disclosures for 18321 CLARK ST, covering report years 2016–2025. Its ENERGY STAR score went from 63 in 2018 to 64 in 2025 (+1 points); its best year on file was 2024, at 99. Site EUI moved from 266.6 kBtu/ft² (2016) to 236.5 kBtu/ft² (2025), a 11% decrease. Reported emissions went from 4,691 tCO₂e to 5,253 tCO₂e over the same span (up 12%).
What does an ENERGY STAR score of 64 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 64 means the building performs better than about 64% of its national peers. BuildingCensus bands the score into report-card grades; 64 falls in band C — below median (55–69). It sits 11 points below 75, the threshold for ENERGY STAR certification. In Los Angeles, 63% 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. 18321 CLARK ST's 236.5 kBtu/ft² across 403,997 sq ft works out to about 95.5 billion Btu (28,002 MWh-equivalent) in 2025. Its source EUI of 439.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 23,188 thousand gallons of water for the year.
Which law requires 18321 CLARK ST to report its energy use?
18321 CLARK ST 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:400432885012:2025). 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 hospital (general medical & surgical) buildings in Los Angeles
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- 5925 SAN VICENTE BLVD· 170,103 sq ft · EUI 108.8 kBtu/ft²
- 14850 ROSCOE BLVD· 147,304 sq ft
- 573 S BOYLE AVE· 127,225 sq ft · score 94 (A)
- 16237 VENTURA BLVD· 126,260 sq ft · score 36 (D)
- 155 N OCCIDENTAL BLVD· 117,956 sq ft · EUI 49.8 kBtu/ft²
- All Los Angeles benchmarked buildings· LA Municipal Code Div. 97, §91.9701 (EBEWE)
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Frequently asked questions
What is 18321 CLARK ST's energy grade?
18321 CLARK ST scores 64 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2025 Los Angeles disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 18321 CLARK ST use?
Its 2025 site energy-use intensity was 236.5 kBtu/ft² (439.5 kBtu/ft² source) across 403,997 sq ft.
What are 18321 CLARK ST's carbon emissions?
18321 CLARK ST reported 5,253 tCO₂e of greenhouse-gas emissions for 2025.
Where is 18321 CLARK ST?
18321 CLARK ST is in Los Angeles, California 91356.
How big is 18321 CLARK ST and when was it built?
18321 CLARK ST has 403,997 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1973 as its year built. It is classed as hospital (general medical & surgical).
Is 18321 CLARK ST 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, “18321 CLARK ST, Los Angeles, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/los-angeles/18321-clark-st-1ddb6973 (data as of October 2, 2026).