Diamond Park
Multifamily Housing in California, CA · 27940 Solamint Road, Santa Clarita · 91387
At a glance
Diamond Park is a 218,347-square-foot multifamily housing building at 27940 Solamint Road, Santa Clarita in Santa Clarita, California, built in 1988. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 76 out of 100 (grade B), a site energy-use intensity of 43.8 kBtu/ft² and 594 tCO₂e of greenhouse-gas emissions. That score is higher than 28% 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 | 76 (band B) |
| Site EUI | 43.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 594 tCO₂e |
| GHG intensity | 2.7 kgCO₂e/ft² |
| Electricity | 1,323,093 kWh |
| Natural gas | 55,360 therms |
| Gross floor area | 218,347 sq ft |
| Source record | california:11716536:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 76 | +8 | 43.8 kBtu/ft² | 594 tCO₂e |
| 2023 | 68 | -1 | 44.5 kBtu/ft² | 597 tCO₂e |
| 2022 | 69 | +9 | 45.2 kBtu/ft² | 595 tCO₂e |
| 2021 | 60 | -35 | 47.0 kBtu/ft² | 580 tCO₂e |
| 2020 | 95 | -1 | 21.1 kBtu/ft² | 326 tCO₂e |
| 2019 | 96 | 19.9 kBtu/ft² | 291 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
- 27940 Solamint Road, Santa Clarita
- City
- California
- State
- California
- ZIP
- 91387
- Coordinates
- 34.41989, -118.45057
Within ~1 km
Nearby benchmarked buildings
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- Colony Townhomesscore —
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See also: most efficient in California · biggest emitters
How does Diamond Park 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. Diamond Park's ENERGY STAR score of 76 compares with an average of 82 across the 9,612 that report a score; it scores higher than 28% of them and lower than 71%. Its site EUI of 43.8 kBtu/ft² is about 27% above the average of 34.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 2.7 kgCO₂e/ft² is about 30% above the group average of 2.1 kgCO₂e/ft².
At 218,347 sq ft, it is about 45% above the average floor area of 150,919 sq ft for those buildings. Its 1988 construction date is close to 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 Diamond Park's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Diamond Park, covering report years 2019–2024. Its ENERGY STAR score went from 96 in 2019 to 76 in 2024 (-20 points); its best year on file was 2019, at 96. Site EUI moved from 19.9 kBtu/ft² (2019) to 43.8 kBtu/ft² (2024), an 120% increase. Reported emissions went from 291 tCO₂e to 594 tCO₂e over the same span (up 104%).
What does an ENERGY STAR score of 76 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 76 means the building performs better than about 76% of its national peers. BuildingCensus bands the score into report-card grades; 76 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. Diamond Park's 43.8 kBtu/ft² across 218,347 sq ft works out to about 9.6 billion Btu (2,803 MWh-equivalent) in 2024. The disclosure also reports 1,323,093 kWh of electricity and 55,360 therms of natural gas for the year.
Which law requires Diamond Park to report its energy use?
Diamond Park 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:11716536:2024). 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
- The Palms· 218,274 sq ft · score 76 (B)
- Villa Siena #30· 218,264 sq ft · score 43 (D)
- Theatre Square· 218,200 sq ft · score 84 (B)
- Gables Alta Murrieta· 218,132 sq ft · score 83 (B)
- Almaden Lake Apts· 218,070 sq ft · score 93 (A)
- Pacific Bay Vistas (Pc45)· 218,016 sq ft · score 89 (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 Diamond Park's energy grade?
Diamond Park scores 76 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 Diamond Park use?
Its 2024 site energy-use intensity was 43.8 kBtu/ft² across 218,347 sq ft, including 1,323,093 kWh of electricity and 55,360 therms of natural gas.
What are Diamond Park's carbon emissions?
Diamond Park reported 594 tCO₂e of greenhouse-gas emissions (2.7 kgCO₂e/ft²) for 2024.
Where is Diamond Park?
Diamond Park is at 27940 Solamint Road, Santa Clarita, in Santa Clarita, California 91387. Its coordinates are 34.41989, -118.45057 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Diamond Park and when was it built?
Diamond Park has 218,347 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1988 as its year built. It is classed as multifamily housing.
Is Diamond Park 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, “Diamond Park, Santa Clarita, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/diamond-park-fb59a929 (data as of July 9, 2026).