535 Anton
Office in California, CA · 535 Anton Blvd., Costa Mesa · 92626
At a glance
535 Anton is a 255,400-square-foot office building at 535 Anton Blvd., Costa Mesa in Costa Mesa, California, built in 1991. In its 2022 California benchmarking disclosure it reported an ENERGY STAR score of 85 out of 100 (grade A), a site energy-use intensity of 30.6 kBtu/ft² and 585 tCO₂e of greenhouse-gas emissions. That score is higher than 52% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 85 (band A) |
| Site EUI | 30.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 585 tCO₂e |
| GHG intensity | 2.3 kgCO₂e/ft² |
| Electricity | 2,415,377 kWh |
| Gross floor area | 255,400 sq ft |
| Source record | california:1556416:2022 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2022latest | 85 | -6 | 30.6 kBtu/ft² | 585 tCO₂e |
| 2021 | 91 | +2 | 27.5 kBtu/ft² | 434 tCO₂e |
| 2020 | 89 | +3 | 31.7 kBtu/ft² | 556 tCO₂e |
| 2019 | 86 | 38.8 kBtu/ft² | 724 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
- 535 Anton Blvd., Costa Mesa
- City
- California
- State
- California
- ZIP
- 92626
- Coordinates
- 33.68897, -117.87726
Within ~1 km
Nearby benchmarked buildings
- 3400 Avenue Of The Arts (Vn56)score 13
Multifamily Housing · 800,000 sq ft
- Halcyon Housescore 100
Multifamily Housing · 520,685 sq ft
- Plaza Towerscore 86
Office · 509,153 sq ft
- Center Tower Buildingscore 80
Office · 462,191 sq ft
- 580 Antonscore —
Multifamily Housing · 431,221 sq ft
- Hilton Costa Mesa - Cmhscore 43
Hotel · 411,100 sq ft
See also: most efficient in California · biggest emitters
How does 535 Anton compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 535 Anton's ENERGY STAR score of 85 compares with an average of 75 across the 4,912 that report a score; it scores higher than 52% of them and lower than 46%. Its site EUI of 30.6 kBtu/ft² is about half of the average of 56.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.3 kgCO₂e/ft² is about 36% below the group average of 3.6 kgCO₂e/ft².
At 255,400 sq ft, it is about 68% above the average floor area of 151,937 sq ft for those buildings. It was built in 1991, 6 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 535 Anton's energy performance changed over time?
BuildingCensus holds 4 California disclosures for 535 Anton, covering report years 2019–2022. Its ENERGY STAR score went from 86 in 2019 to 85 in 2022 (-1 points); its best year on file was 2021, at 91. Site EUI moved from 38.8 kBtu/ft² (2019) to 30.6 kBtu/ft² (2022), a 21% decrease. Reported emissions went from 724 tCO₂e to 585 tCO₂e over the same span (down 19%).
What does an ENERGY STAR score of 85 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 85 means the building performs better than about 85% of its national peers. BuildingCensus bands the score into report-card grades; 85 falls in band A — high performer (85–100). 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. 535 Anton's 30.6 kBtu/ft² across 255,400 sq ft works out to about 7.8 billion Btu (2,290 MWh-equivalent) in 2022. The disclosure also reports 2,415,377 kWh of electricity for the year.
Which law requires 535 Anton to report its energy use?
535 Anton 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 2022 disclosure (source record california:1556416:2022). 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
- 225 Pasarroyo (Bp)· 255,343 sq ft · score 82 (B)
- Lakeshore - 18111· 255,285 sq ft · score 88 (A)
- 2301 E. 7Th Street, Llc· 255,211 sq ft · EUI 16.5 kBtu/ft²
- Harry Hufford Registrar - Recorder/Co Clerk Building (Ab 802)· 255,000 sq ft · score 12 (D)
- 225 S. Lake· 254,523 sq ft · score 92 (A)
- 575 Anton· 254,423 sq ft · score 91 (A)
- 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 535 Anton's energy grade?
535 Anton scores 85 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2022 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 535 Anton use?
Its 2022 site energy-use intensity was 30.6 kBtu/ft² across 255,400 sq ft, including 2,415,377 kWh of electricity.
What are 535 Anton's carbon emissions?
535 Anton reported 585 tCO₂e of greenhouse-gas emissions (2.3 kgCO₂e/ft²) for 2022.
Where is 535 Anton?
535 Anton is at 535 Anton Blvd., Costa Mesa, in Costa Mesa, California 92626. Its coordinates are 33.68897, -117.87726 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 535 Anton and when was it built?
535 Anton has 255,400 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1991 as its year built. It is classed as office.
Is 535 Anton covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2022 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, “535 Anton, Costa Mesa, California — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/california/535-anton-9da92060 (data as of July 9, 2026).