Montejo Apartments - Essex (Mn278)
Multifamily Housing in California, CA · 12921 Dale St, Garden Grove · 92841
At a glance
Montejo Apartments - Essex (Mn278) is a 105,175-square-foot multifamily housing building at 12921 Dale St, Garden Grove in Garden Grove, California, built in 1974. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 88 out of 100 (grade A), a site energy-use intensity of 34.5 kBtu/ft² and 214 tCO₂e of greenhouse-gas emissions. That score is higher than 43% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 88 (band A) |
| Site EUI | 34.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 214 tCO₂e |
| GHG intensity | 2.0 kgCO₂e/ft² |
| Electricity | 479,088 kWh |
| Natural gas | 19,830 therms |
| Gross floor area | 105,175 sq ft |
| Source record | california:6860594:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 88 | +6 | 34.5 kBtu/ft² | 214 tCO₂e |
| 2023 | 82 | -8 | 37.9 kBtu/ft² | 241 tCO₂e |
| 2022 | 90 | +2 | 35.1 kBtu/ft² | 230 tCO₂e |
| 2020 | 88 | +4 | 37.5 kBtu/ft² | 235 tCO₂e |
| 2019 | 84 | 39.1 kBtu/ft² | 250 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.
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Location
- Address
- 12921 Dale St, Garden Grove
- City
- California
- State
- California
- ZIP
- 92841
- Coordinates
- 33.77484, -117.98523
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Montejo Apartments - Essex (Mn278) compare with other multifamily housing buildings in California?
The latest disclosures cover 10,630 multifamily housing buildings in California, out of 40,029 buildings citywide. Montejo Apartments - Essex (Mn278)'s ENERGY STAR score of 88 compares with an average of 82 across the 9,612 that report a score; it scores higher than 43% of them and lower than 55%. Its site EUI of 34.5 kBtu/ft² is roughly in line with the average of 34.4 kBtu/ft². Its emissions intensity of 2.0 kgCO₂e/ft² is roughly in line with the group average of 2.1 kgCO₂e/ft².
At 105,175 sq ft, it is about 30% below the average floor area of 150,919 sq ft for those buildings. It was built in 1974, 14 years earlier than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Montejo Apartments - Essex (Mn278)'s energy performance changed over time?
BuildingCensus holds 5 California disclosures for Montejo Apartments - Essex (Mn278), covering report years 2019, 2020, 2022, 2023, 2024. Its ENERGY STAR score went from 84 in 2019 to 88 in 2024 (+4 points); its best year on file was 2022, at 90. Site EUI moved from 39.1 kBtu/ft² (2019) to 34.5 kBtu/ft² (2024), a 12% decrease. Reported emissions went from 250 tCO₂e to 214 tCO₂e over the same span (down 14%).
What does an ENERGY STAR score of 88 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 88 means the building performs better than about 88% of its national peers. BuildingCensus bands the score into report-card grades; 88 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. Montejo Apartments - Essex (Mn278)'s 34.5 kBtu/ft² across 105,175 sq ft works out to about 3.6 billion Btu (1,063 MWh-equivalent) in 2024. The disclosure also reports 479,088 kWh of electricity and 19,830 therms of natural gas for the year.
Which law requires Montejo Apartments - Essex (Mn278) to report its energy use?
Montejo Apartments - Essex (Mn278) 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:6860594:2024). 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 multifamily housing buildings in California
- 4127 W Valencia Dr· 105,130 sq ft · score 100 (A)
- 1513 Robertson Rd, Modesto, Ca 95351, Usa· 105,120 sq ft · score 32 (D)
- Riverfront Apartments· 105,080 sq ft · EUI 26.8 kBtu/ft²
- Bayview (By004)· 105,072 sq ft · score 83 (B)
- Trestle Glen· 105,060 sq ft · score 75 (B)
- Bellflower Terrace· 105,060 sq ft · score 91 (A)
- Multifamily Housing buildings in California· 10,630 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 Montejo Apartments - Essex (Mn278)'s energy grade?
Montejo Apartments - Essex (Mn278) scores 88 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 Montejo Apartments - Essex (Mn278) use?
Its 2024 site energy-use intensity was 34.5 kBtu/ft² across 105,175 sq ft, including 479,088 kWh of electricity and 19,830 therms of natural gas.
What are Montejo Apartments - Essex (Mn278)'s carbon emissions?
Montejo Apartments - Essex (Mn278) reported 214 tCO₂e of greenhouse-gas emissions (2.0 kgCO₂e/ft²) for 2024.
Where is Montejo Apartments - Essex (Mn278)?
Montejo Apartments - Essex (Mn278) is at 12921 Dale St, Garden Grove, in Garden Grove, California 92841. Its coordinates are 33.77484, -117.98523 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Montejo Apartments - Essex (Mn278) and when was it built?
Montejo Apartments - Essex (Mn278) has 105,175 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1974 as its year built. It is classed as multifamily housing.
Is Montejo Apartments - Essex (Mn278) 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, “Montejo Apartments - Essex (Mn278), Garden Grove, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/montejo-apartments-essex-mn278-c8a6edf6 (data as of July 9, 2026).