Hillcrest Park - (Hl159) Essex
Multifamily Housing in California, CA · 1800 W. Hillcrest Drive, Newbury Park · 91320
At a glance
Hillcrest Park - (Hl159) Essex is a 536,290-square-foot multifamily housing building at 1800 W. Hillcrest Drive, Newbury Park in Newbury Park, California, built in 1975. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 79 out of 100 (grade B), a site energy-use intensity of 44.2 kBtu/ft² and 1,319 tCO₂e of greenhouse-gas emissions. That score is higher than 31% 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 | 79 (band B) |
| Site EUI | 44.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 1,319 tCO₂e |
| GHG intensity | 2.5 kgCO₂e/ft² |
| Electricity | 2,191,062 kWh |
| Natural gas | 167,811 therms |
| Gross floor area | 536,290 sq ft |
| Source record | california:6782019:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 79 | -2 | 44.2 kBtu/ft² | 1,319 tCO₂e |
| 2023 | 81 | +23 | 43.5 kBtu/ft² | 1,352 tCO₂e |
| 2022 | 58 | -28 | 43.9 kBtu/ft² | 1,340 tCO₂e |
| 2021 | 86 | — | 962 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
- 1800 W. Hillcrest Drive, Newbury Park
- City
- California
- State
- California
- ZIP
- 91320
- Coordinates
- 34.18762, -118.91809
Within ~1 km
Nearby benchmarked buildings
- Hillcrest Park Apartmentsscore 35
Multifamily Housing · 536,290 sq ft
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- 10630-Thousand Oaks-Solarscore 100
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- 1011 Rancho Conejo - 13044score —
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- 1111 Rancho Conejo Blvdscore 100
Multifamily Housing · 85,962 sq ft
See also: most efficient in California · biggest emitters
How does Hillcrest Park - (Hl159) Essex 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. Hillcrest Park - (Hl159) Essex's ENERGY STAR score of 79 compares with an average of 82 across the 9,612 that report a score; it scores higher than 31% of them and lower than 68%. Its site EUI of 44.2 kBtu/ft² is about 28% 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 2.5 kgCO₂e/ft² is about 17% above the group average of 2.1 kgCO₂e/ft².
At 536,290 sq ft, it is about 255% above the average floor area of 150,919 sq ft for those buildings. It was built in 1975, 13 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 Hillcrest Park - (Hl159) Essex's energy performance changed over time?
BuildingCensus holds 4 California disclosures for Hillcrest Park - (Hl159) Essex, covering report years 2021–2024. Its ENERGY STAR score went from 86 in 2021 to 79 in 2024 (-7 points); its best year on file was 2021, at 86. Site EUI moved from 43.9 kBtu/ft² (2022) to 44.2 kBtu/ft² (2024), an 1% increase. Reported emissions went from 962 tCO₂e to 1,319 tCO₂e over the same span (up 37%).
What does an ENERGY STAR score of 79 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 79 means the building performs better than about 79% of its national peers. BuildingCensus bands the score into report-card grades; 79 falls in band B — above median (70–84). 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. Hillcrest Park - (Hl159) Essex's 44.2 kBtu/ft² across 536,290 sq ft works out to about 23.7 billion Btu (6,947 MWh-equivalent) in 2024. The disclosure also reports 2,191,062 kWh of electricity and 167,811 therms of natural gas for the year.
Which law requires Hillcrest Park - (Hl159) Essex to report its energy use?
Hillcrest Park - (Hl159) Essex 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:6782019:2024). 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
- Spruce: Spruce· 536,200 sq ft · score 100 (A)
- 888 At Grand Hope Park· 535,991 sq ft · score 84 (B)
- 819611 - The Merian· 535,744 sq ft · score 79 (B)
- Stoneridge Apartments· 535,040 sq ft · score 69 (C)
- Neptune (Aka Neptune Marina)· 532,914 sq ft · score 93 (A)
- Madison Park (Ey) (Md30)· 532,234 sq ft · EUI 42.7 kBtu/ft²
- 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 Hillcrest Park - (Hl159) Essex's energy grade?
Hillcrest Park - (Hl159) Essex scores 79 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Hillcrest Park - (Hl159) Essex use?
Its 2024 site energy-use intensity was 44.2 kBtu/ft² across 536,290 sq ft, including 2,191,062 kWh of electricity and 167,811 therms of natural gas.
What are Hillcrest Park - (Hl159) Essex's carbon emissions?
Hillcrest Park - (Hl159) Essex reported 1,319 tCO₂e of greenhouse-gas emissions (2.5 kgCO₂e/ft²) for 2024.
Where is Hillcrest Park - (Hl159) Essex?
Hillcrest Park - (Hl159) Essex is at 1800 W. Hillcrest Drive, Newbury Park, in Newbury Park, California 91320. Its coordinates are 34.18762, -118.91809 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Hillcrest Park - (Hl159) Essex and when was it built?
Hillcrest Park - (Hl159) Essex has 536,290 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1975 as its year built. It is classed as multifamily housing.
Is Hillcrest Park - (Hl159) Essex 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, “Hillcrest Park - (Hl159) Essex, Newbury Park, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/hillcrest-park-hl159-essex-cfd9eedb (data as of July 9, 2026).