Reef Crown Valley Financial Plaza
Office in California, CA · 26300 La Alameda, Mission Viejo · 92691
At a glance
Reef Crown Valley Financial Plaza is a 63,317-square-foot office building at 26300 La Alameda, Mission Viejo in Mission Viejo, California, built in 1983. In its 2022 California benchmarking disclosure it reported an ENERGY STAR score of 87 out of 100 (grade A), a site energy-use intensity of 28.1 kBtu/ft² and 129 tCO₂e of greenhouse-gas emissions. That score is higher than 56% 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 | 87 (band A) |
| Site EUI | 28.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 129 tCO₂e |
| GHG intensity | 2.0 kgCO₂e/ft² |
| Electricity | 550,659 kWh |
| Gross floor area | 63,317 sq ft |
| Source record | california:22699109:2022 |
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
- 26300 La Alameda, Mission Viejo
- City
- California
- State
- California
- ZIP
- 92691
- Coordinates
- 33.56363, -117.67055
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Reef Crown Valley Financial Plaza compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Reef Crown Valley Financial Plaza's ENERGY STAR score of 87 compares with an average of 75 across the 4,912 that report a score; it scores higher than 56% of them and lower than 41%. Its site EUI of 28.1 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 2.0 kgCO₂e/ft² is about 44% below the group average of 3.6 kgCO₂e/ft².
At 63,317 sq ft, it is about 58% below the average floor area of 151,937 sq ft for those buildings. Its 1983 construction date is close to 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.
What does an ENERGY STAR score of 87 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 87 means the building performs better than about 87% of its national peers. BuildingCensus bands the score into report-card grades; 87 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. Reef Crown Valley Financial Plaza's 28.1 kBtu/ft² across 63,317 sq ft works out to about 1.8 billion Btu (521 MWh-equivalent) in 2022. The disclosure also reports 550,659 kWh of electricity for the year.
Which law requires Reef Crown Valley Financial Plaza to report its energy use?
Reef Crown Valley Financial Plaza 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:22699109:2022). 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
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- 1090 Sansome Street - Sf· 63,288 sq ft · score 92 (A)
- Page Mill Hill - 1841· 63,286 sq ft · score 48 (D)
- Us-Mtv-Qd4· 63,274 sq ft · EUI 48.6 kBtu/ft²
- 189 Bernardo Llc· 63,272 sq ft · score 78 (B)
- 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 Reef Crown Valley Financial Plaza's energy grade?
Reef Crown Valley Financial Plaza scores 87 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 Reef Crown Valley Financial Plaza use?
Its 2022 site energy-use intensity was 28.1 kBtu/ft² across 63,317 sq ft, including 550,659 kWh of electricity.
What are Reef Crown Valley Financial Plaza's carbon emissions?
Reef Crown Valley Financial Plaza reported 129 tCO₂e of greenhouse-gas emissions (2.0 kgCO₂e/ft²) for 2022.
Where is Reef Crown Valley Financial Plaza?
Reef Crown Valley Financial Plaza is at 26300 La Alameda, Mission Viejo, in Mission Viejo, California 92691. Its coordinates are 33.56363, -117.67055 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Reef Crown Valley Financial Plaza and when was it built?
Reef Crown Valley Financial Plaza has 63,317 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1983 as its year built. It is classed as office.
Is Reef Crown Valley Financial Plaza 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).
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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, “Reef Crown Valley Financial Plaza, Mission Viejo, California — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/california/reef-crown-valley-financial-plaza-3b84300b (data as of July 9, 2026).