The Launch South (18650 Macarthur)
Office in California, CA · 18650 Macarthur Boulevard, Irvine · 92612
At a glance
The Launch South (18650 Macarthur) is a 72,160-square-foot office building at 18650 Macarthur Boulevard, Irvine in Irvine, California, built in 1970. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 77 out of 100 (grade B), a site energy-use intensity of 59.5 kBtu/ft² and 263 tCO₂e of greenhouse-gas emissions. That score is higher than 38% 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 | 77 (band B) |
| Site EUI | 59.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 263 tCO₂e |
| GHG intensity | 3.6 kgCO₂e/ft² |
| Electricity | 604,757 kWh |
| Natural gas | 23,793 therms |
| Gross floor area | 72,160 sq ft |
| Source record | california:1158710:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 77 | +4 | 59.5 kBtu/ft² | 263 tCO₂e |
| 2023 | 73 | +12 | 66.6 kBtu/ft² | 295 tCO₂e |
| 2022 | 61 | +11 | 66.7 kBtu/ft² | 316 tCO₂e |
| 2021 | 50 | -3 | 72.6 kBtu/ft² | 325 tCO₂e |
| 2020 | 53 | 88.6 kBtu/ft² | 353 tCO₂e | |
| 2019 | — | 48.6 kBtu/ft² | 204 tCO₂e | |
| 2018 | 100 | 8.0 kBtu/ft² | 38 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
- 18650 Macarthur Boulevard, Irvine
- City
- California
- State
- California
- ZIP
- 92612
- Coordinates
- 33.67697, -117.86042
Within ~1 km
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- 2040 Mainscore 84
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- The Atriumscore 95
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See also: most efficient in California · biggest emitters
How does The Launch South (18650 Macarthur) compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. The Launch South (18650 Macarthur)'s ENERGY STAR score of 77 compares with an average of 75 across the 4,912 that report a score; it scores higher than 38% of them and lower than 61%. Its site EUI of 59.5 kBtu/ft² is roughly in line with the average of 56.4 kBtu/ft². Its emissions intensity of 3.6 kgCO₂e/ft² is roughly in line with the group average of 3.6 kgCO₂e/ft².
At 72,160 sq ft, it is about half of the average floor area of 151,937 sq ft for those buildings. It was built in 1970, 15 years earlier 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 The Launch South (18650 Macarthur)'s energy performance changed over time?
BuildingCensus holds 7 California disclosures for The Launch South (18650 Macarthur), covering report years 2018–2024. Its ENERGY STAR score went from 100 in 2018 to 77 in 2024 (-23 points); its best year on file was 2018, at 100. Site EUI moved from 8.0 kBtu/ft² (2018) to 59.5 kBtu/ft² (2024), an 644% increase. Reported emissions went from 38 tCO₂e to 263 tCO₂e over the same span (up 595%).
What does an ENERGY STAR score of 77 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 77 means the building performs better than about 77% of its national peers. BuildingCensus bands the score into report-card grades; 77 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. The Launch South (18650 Macarthur)'s 59.5 kBtu/ft² across 72,160 sq ft works out to about 4.3 billion Btu (1,258 MWh-equivalent) in 2024. The disclosure also reports 604,757 kWh of electricity and 23,793 therms of natural gas for the year.
Which law requires The Launch South (18650 Macarthur) to report its energy use?
The Launch South (18650 Macarthur) 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:1158710:2024). 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
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- 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 The Launch South (18650 Macarthur)'s energy grade?
The Launch South (18650 Macarthur) scores 77 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 The Launch South (18650 Macarthur) use?
Its 2024 site energy-use intensity was 59.5 kBtu/ft² across 72,160 sq ft, including 604,757 kWh of electricity and 23,793 therms of natural gas.
What are The Launch South (18650 Macarthur)'s carbon emissions?
The Launch South (18650 Macarthur) reported 263 tCO₂e of greenhouse-gas emissions (3.6 kgCO₂e/ft²) for 2024.
Where is The Launch South (18650 Macarthur)?
The Launch South (18650 Macarthur) is at 18650 Macarthur Boulevard, Irvine, in Irvine, California 92612. Its coordinates are 33.67697, -117.86042 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is The Launch South (18650 Macarthur) and when was it built?
The Launch South (18650 Macarthur) has 72,160 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1970 as its year built. It is classed as office.
Is The Launch South (18650 Macarthur) 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, “The Launch South (18650 Macarthur), Irvine, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/the-launch-south-18650-macarthur-0af46572 (data as of July 9, 2026).