Oc Irvine Hospital Campus
Hospital (General Medical & Surgical) in California, CA · 6640 Alton Parkway, Irvine · 92618
At a glance
Oc Irvine Hospital Campus is a 733,225-square-foot hospital (general medical & surgical) at 6640 Alton Parkway, Irvine in Irvine, California, built in 2008. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 23 out of 100 (grade D), a site energy-use intensity of 264.4 kBtu/ft² and 11,049 tCO₂e of greenhouse-gas emissions. That score is higher than 21% of the 300 scored hospital (general medical & surgical) buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 23 (band D) |
| Site EUI | 264.4 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 11,049 tCO₂e |
| GHG intensity | 15.1 kgCO₂e/ft² |
| Electricity | 14,553,031 kWh |
| Natural gas | 1,399,596 therms |
| Gross floor area | 733,225 sq ft |
| Source record | california:2551230:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 23 | +10 | 264.4 kBtu/ft² | 11,049 tCO₂e |
| 2023 | 13 | +1 | 267.2 kBtu/ft² | 11,592 tCO₂e |
| 2022 | 12 | ±0 | 285.0 kBtu/ft² | 11,675 tCO₂e |
| 2021 | 12 | -1 | 277.3 kBtu/ft² | 11,278 tCO₂e |
| 2020 | 13 | +9 | 272.3 kBtu/ft² | 11,531 tCO₂e |
| 2018 | 4 | 277.7 kBtu/ft² | 12,272 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 6640 Alton Parkway, Irvine
- City
- California
- State
- California
- ZIP
- 92618
- Coordinates
- 33.65816, -117.77490
Within ~1 km
Nearby benchmarked buildings
- 16215 Altonscore 30
Office · 88,903 sq ft
- 16225 Altonscore 38
Office · 77,952 sq ft
Hotel · 65,758 sq ft
See also: most efficient in California · biggest emitters
How does Oc Irvine Hospital Campus compare with other hospital (general medical & surgical) buildings in California?
The latest disclosures cover 329 hospital (general medical & surgical) buildings in California, out of 40,029 buildings citywide. Oc Irvine Hospital Campus's ENERGY STAR score of 23 compares with an average of 59 across the 300 that report a score; it scores higher than 21% of them and lower than 77%. Its site EUI of 264.4 kBtu/ft² is about 11% above the average of 238.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 15.1 kgCO₂e/ft² is roughly in line with the group average of 14.1 kgCO₂e/ft².
At 733,225 sq ft, it is about 70% above the average floor area of 432,386 sq ft for those buildings. It was built in 2008, 31 years later than the group's average year built (1978). 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 Oc Irvine Hospital Campus's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Oc Irvine Hospital Campus, covering report years 2018, 2020, 2021, 2022, 2023, 2024. Its ENERGY STAR score went from 4 in 2018 to 23 in 2024 (+19 points). Site EUI moved from 277.7 kBtu/ft² (2018) to 264.4 kBtu/ft² (2024), a 5% decrease. Reported emissions went from 12,272 tCO₂e to 11,049 tCO₂e over the same span (down 10%).
What does an ENERGY STAR score of 23 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 23 means the building performs better than about 23% of its national peers. BuildingCensus bands the score into report-card grades; 23 falls in band D — lowest band (1–54). It sits 52 points below 75, the threshold for ENERGY STAR certification. 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. Oc Irvine Hospital Campus's 264.4 kBtu/ft² across 733,225 sq ft works out to about 193.9 billion Btu (56,816 MWh-equivalent) in 2024. The disclosure also reports 14,553,031 kWh of electricity and 1,399,596 therms of natural gas for the year.
Which law requires Oc Irvine Hospital Campus to report its energy use?
Oc Irvine Hospital Campus 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:2551230:2024). 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 hospital (general medical & surgical) buildings in California
- Baldwin Park Hospital Campus· 720,769 sq ft · score 45 (D)
- Oakland Hospital (Old)· 718,571 sq ft · score 100 (A)
- Laguna Honda Hospital· 717,126 sq ft · score 90 (A)
- Kaiser Permanente San Diego Medical Center· 690,285 sq ft · score 90 (A)
- Scripps Mercy Sd - Hospital· 684,980 sq ft · score 100 (A)
- Modesto Hospital Campus· 681,500 sq ft · score 91 (A)
- Hospital (General Medical & Surgical) buildings in California· 329 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 Oc Irvine Hospital Campus's energy grade?
Oc Irvine Hospital Campus scores 23 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Oc Irvine Hospital Campus use?
Its 2024 site energy-use intensity was 264.4 kBtu/ft² across 733,225 sq ft, including 14,553,031 kWh of electricity and 1,399,596 therms of natural gas.
What are Oc Irvine Hospital Campus's carbon emissions?
Oc Irvine Hospital Campus reported 11,049 tCO₂e of greenhouse-gas emissions (15.1 kgCO₂e/ft²) for 2024.
Where is Oc Irvine Hospital Campus?
Oc Irvine Hospital Campus is at 6640 Alton Parkway, Irvine, in Irvine, California 92618. Its coordinates are 33.65816, -117.77490 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Oc Irvine Hospital Campus and when was it built?
Oc Irvine Hospital Campus has 733,225 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2008 as its year built. It is classed as hospital (general medical & surgical).
Is Oc Irvine Hospital Campus 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).
Working with California building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Oc Irvine Hospital Campus, Irvine, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/oc-irvine-hospital-campus-e4c99396 (data as of July 9, 2026).