Ayres Suites Costa Mesa
Hotel in California, CA · 325 Bristol St, Costa Mesa · 92626
At a glance
Ayres Suites Costa Mesa is a 175,771-square-foot hotel at 325 Bristol St, Costa Mesa in Costa Mesa, California, built in 1986. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 99 out of 100 (grade A), a site energy-use intensity of 44.9 kBtu/ft² and 460 tCO₂e of greenhouse-gas emissions. That score is higher than 88% of the 1,525 scored hotel buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 99 (band A) |
| Site EUI | 44.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 460 tCO₂e |
| GHG intensity | 2.6 kgCO₂e/ft² |
| Electricity | 1,015,214 kWh |
| Natural gas | 43,397 therms |
| Gross floor area | 175,771 sq ft |
| Source record | california:6843710:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 99 | +1 | 44.9 kBtu/ft² | 460 tCO₂e |
| 2023 | 98 | 46.3 kBtu/ft² | 499 tCO₂e | |
| 2022 | — | — | — | |
| 2020 | 98 | +6 | 50.5 kBtu/ft² | 478 tCO₂e |
| 2019 | 92 | +3 | 61.4 kBtu/ft² | 646 tCO₂e |
| 2018 | 89 | 63.8 kBtu/ft² | 679 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
- 325 Bristol St, Costa Mesa
- City
- California
- State
- California
- ZIP
- 92626
- Coordinates
- 33.66552, -117.88192
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Ayres Suites Costa Mesa compare with other hotel buildings in California?
The latest disclosures cover 1,599 hotel buildings in California, out of 40,029 buildings citywide. Ayres Suites Costa Mesa's ENERGY STAR score of 99 compares with an average of 74 across the 1,525 that report a score; it scores higher than 88% of them and lower than 9%. Its site EUI of 44.9 kBtu/ft² is about 32% below the average of 65.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.6 kgCO₂e/ft² is about 35% below the group average of 4.0 kgCO₂e/ft².
At 175,771 sq ft, it is roughly in line with the average floor area of 167,786 sq ft for those buildings. Its 1986 construction date is close to the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².
How has Ayres Suites Costa Mesa's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Ayres Suites Costa Mesa, covering report years 2018, 2019, 2020, 2022, 2023, 2024. Its ENERGY STAR score went from 89 in 2018 to 99 in 2024 (+10 points). Site EUI moved from 63.8 kBtu/ft² (2018) to 44.9 kBtu/ft² (2024), a 30% decrease. Reported emissions went from 679 tCO₂e to 460 tCO₂e over the same span (down 32%).
What does an ENERGY STAR score of 99 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 99 means the building performs better than about 99% of its national peers. BuildingCensus bands the score into report-card grades; 99 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. Ayres Suites Costa Mesa's 44.9 kBtu/ft² across 175,771 sq ft works out to about 7.9 billion Btu (2,313 MWh-equivalent) in 2024. The disclosure also reports 1,015,214 kWh of electricity and 43,397 therms of natural gas for the year.
Which law requires Ayres Suites Costa Mesa to report its energy use?
Ayres Suites Costa Mesa 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:6843710:2024). 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 hotel buildings in California
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- 1064 - Sonesta Irvine Orange County Airport 17941 Von Karmen Ave - Svc· 175,000 sq ft · score 71 (B)
- 311Mc-Long Beach Downtown Courtyard· 173,900 sq ft · score 100 (A)
- 29Sba - Sheraton Fairplex· 173,273 sq ft · score 78 (B)
- 160 Pasadena Ca Php· 173,253 sq ft · score 92 (A)
- Concord Plaza Hotel - 45 John Glenn Dr, Concord, Ca 94520, Usa· 173,039 sq ft · score 80 (B)
- Hotel buildings in California· 1,599 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 Ayres Suites Costa Mesa's energy grade?
Ayres Suites Costa Mesa scores 99 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Ayres Suites Costa Mesa use?
Its 2024 site energy-use intensity was 44.9 kBtu/ft² across 175,771 sq ft, including 1,015,214 kWh of electricity and 43,397 therms of natural gas.
What are Ayres Suites Costa Mesa's carbon emissions?
Ayres Suites Costa Mesa reported 460 tCO₂e of greenhouse-gas emissions (2.6 kgCO₂e/ft²) for 2024.
Where is Ayres Suites Costa Mesa?
Ayres Suites Costa Mesa is at 325 Bristol St, Costa Mesa, in Costa Mesa, California 92626. Its coordinates are 33.66552, -117.88192 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Ayres Suites Costa Mesa and when was it built?
Ayres Suites Costa Mesa has 175,771 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1986 as its year built. It is classed as hotel.
Is Ayres Suites Costa Mesa 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, “Ayres Suites Costa Mesa, Costa Mesa, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/ayres-suites-costa-mesa-09a5a5c9 (data as of July 9, 2026).