42 Discovery
Office in California, CA · 42 Discovery, Irvine · 92618
At a glance
42 Discovery is a 53,840-square-foot office building at 42 Discovery, Irvine in Irvine, California, built in 2000. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 14 out of 100 (grade D), a site energy-use intensity of 117.2 kBtu/ft² and 395 tCO₂e of greenhouse-gas emissions. That score is higher than 5% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 14 (band D) |
| Site EUI | 117.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 395 tCO₂e |
| GHG intensity | 7.3 kgCO₂e/ft² |
| Electricity | 1,258,072 kWh |
| Natural gas | 20,691 therms |
| Gross floor area | 53,840 sq ft |
| Source record | california:1783750:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 14 | 117.2 kBtu/ft² | 395 tCO₂e | |
| 2023 | — | — | — | |
| 2022 | — | — | — | |
| 2021 | 8 | 130.0 kBtu/ft² | 415 tCO₂e | |
| 2020 | — | — | — | |
| 2019 | — | — | — | |
| 2018 | — | — | — |
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
- 42 Discovery, Irvine
- City
- California
- State
- California
- ZIP
- 92618
- Coordinates
- 33.66602, -117.75484
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 42 Discovery compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 42 Discovery's ENERGY STAR score of 14 compares with an average of 75 across the 4,912 that report a score; it scores higher than 5% of them and lower than 95%. Its site EUI of 117.2 kBtu/ft² is about twice the average of 56.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 7.3 kgCO₂e/ft² is about twice the group average of 3.6 kgCO₂e/ft².
At 53,840 sq ft, it is about 65% below the average floor area of 151,937 sq ft for those buildings. It was built in 2000, 15 years later than the group's average year built (1985). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 42 Discovery's energy performance changed over time?
BuildingCensus holds 7 California disclosures for 42 Discovery, covering report years 2018–2024. Its ENERGY STAR score went from 8 in 2021 to 14 in 2024 (+6 points). Site EUI moved from 130.0 kBtu/ft² (2021) to 117.2 kBtu/ft² (2024), a 10% decrease. Reported emissions went from 415 tCO₂e to 395 tCO₂e over the same span (down 5%).
What does an ENERGY STAR score of 14 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 14 means the building performs better than about 14% of its national peers. BuildingCensus bands the score into report-card grades; 14 falls in band D — lowest band (1–54). It sits 61 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. 42 Discovery's 117.2 kBtu/ft² across 53,840 sq ft works out to about 6.3 billion Btu (1,849 MWh-equivalent) in 2024. The disclosure also reports 1,258,072 kWh of electricity and 20,691 therms of natural gas for the year.
Which law requires 42 Discovery to report its energy use?
42 Discovery 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:1783750:2024). 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 office buildings in California
- 3901 Via Oro Avenue (Rexford Ab 802)· 53,817 sq ft · score 66 (C)
- Vccf Nonprofit Center, Llc· 53,815 sq ft · score 91 (A)
- 15535 Sand Canyon Bldg A· 53,803 sq ft · score 88 (A)
- 7535 Irvine Center Drive· 53,794 sq ft · score 95 (A)
- 111 Theory· 53,794 sq ft · score 84 (B)
- 9520 Towne Centre· 53,794 sq ft
- Office buildings in California· 6,214 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 42 Discovery's energy grade?
42 Discovery scores 14 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 42 Discovery use?
Its 2024 site energy-use intensity was 117.2 kBtu/ft² across 53,840 sq ft, including 1,258,072 kWh of electricity and 20,691 therms of natural gas.
What are 42 Discovery's carbon emissions?
42 Discovery reported 395 tCO₂e of greenhouse-gas emissions (7.3 kgCO₂e/ft²) for 2024.
Where is 42 Discovery?
42 Discovery is at 42 Discovery, Irvine, in Irvine, California 92618. Its coordinates are 33.66602, -117.75484 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 42 Discovery and when was it built?
42 Discovery has 53,840 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2000 as its year built. It is classed as office.
Is 42 Discovery 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, “42 Discovery, Irvine, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/42-discovery-516f4209 (data as of July 9, 2026).