River Ranch Townhomes
Multifamily Housing in California, CA · 18005 Annes Circle, Santa Clarita · 91387
At a glance
River Ranch Townhomes is a 494,694-square-foot multifamily housing building at 18005 Annes Circle, Santa Clarita in Santa Clarita, California, built in 2000. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 95 out of 100 (grade A), a site energy-use intensity of 25.7 kBtu/ft² and 833 tCO₂e of greenhouse-gas emissions. That score is higher than 58% 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 | 95 (band A) |
| Site EUI | 25.7 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 833 tCO₂e |
| GHG intensity | 1.7 kgCO₂e/ft² |
| Electricity | 3,523,963 kWh |
| Natural gas | 6,520 therms |
| Gross floor area | 494,694 sq ft |
| Source record | california:11716539:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 95 | -4 | 25.7 kBtu/ft² | 833 tCO₂e |
| 2023 | 99 | +1 | 18.4 kBtu/ft² | 658 tCO₂e |
| 2022 | 98 | +1 | 19.0 kBtu/ft² | 725 tCO₂e |
| 2021 | 97 | -1 | 20.7 kBtu/ft² | 648 tCO₂e |
| 2020 | 98 | -1 | 19.7 kBtu/ft² | 727 tCO₂e |
| 2019 | 99 | 18.6 kBtu/ft² | 617 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
- 18005 Annes Circle, Santa Clarita
- City
- California
- State
- California
- ZIP
- 91387
- Coordinates
- 34.41103, -118.45209
Within ~1 km
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- 18701 Flying Tiger Drscore 91
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See also: most efficient in California · biggest emitters
How does River Ranch Townhomes 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. River Ranch Townhomes's ENERGY STAR score of 95 compares with an average of 82 across the 9,612 that report a score; it scores higher than 58% of them and lower than 40%. Its site EUI of 25.7 kBtu/ft² is about 25% below the average of 34.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.7 kgCO₂e/ft² is about 20% below the group average of 2.1 kgCO₂e/ft².
At 494,694 sq ft, it is about 228% above the average floor area of 150,919 sq ft for those buildings. It was built in 2000, 12 years later 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 River Ranch Townhomes's energy performance changed over time?
BuildingCensus holds 6 California disclosures for River Ranch Townhomes, covering report years 2019–2024. Its ENERGY STAR score went from 99 in 2019 to 95 in 2024 (-4 points); its best year on file was 2019, at 99. Site EUI moved from 18.6 kBtu/ft² (2019) to 25.7 kBtu/ft² (2024), an 38% increase. Reported emissions went from 617 tCO₂e to 833 tCO₂e over the same span (up 35%).
What does an ENERGY STAR score of 95 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 95 means the building performs better than about 95% of its national peers. BuildingCensus bands the score into report-card grades; 95 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. River Ranch Townhomes's 25.7 kBtu/ft² across 494,694 sq ft works out to about 12.7 billion Btu (3,726 MWh-equivalent) in 2024. The disclosure also reports 3,523,963 kWh of electricity and 6,520 therms of natural gas for the year.
Which law requires River Ranch Townhomes to report its energy use?
River Ranch Townhomes 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:11716539:2024). 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
- Glenbrook Apartmetns (Gl58)· 493,660 sq ft · score 88 (A)
- 8Th And Grand #8728 (25239)· 493,057 sq ft · score 34 (D)
- Blu Laguna Niguel (Bl143)· 492,678 sq ft · score 98 (A)
- Preston Park (Pr84) (Pe173)· 492,217 sq ft · score 99 (A)
- Ca085_Avalon Walnut Creek (Cw74)· 491,883 sq ft · score 90 (A)
- The Eleven Hundred (Lv035)· 490,607 sq ft · score 66 (C)
- 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 River Ranch Townhomes's energy grade?
River Ranch Townhomes scores 95 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 River Ranch Townhomes use?
Its 2024 site energy-use intensity was 25.7 kBtu/ft² across 494,694 sq ft, including 3,523,963 kWh of electricity and 6,520 therms of natural gas.
What are River Ranch Townhomes's carbon emissions?
River Ranch Townhomes reported 833 tCO₂e of greenhouse-gas emissions (1.7 kgCO₂e/ft²) for 2024.
Where is River Ranch Townhomes?
River Ranch Townhomes is at 18005 Annes Circle, Santa Clarita, in Santa Clarita, California 91387. Its coordinates are 34.41103, -118.45209 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is River Ranch Townhomes and when was it built?
River Ranch Townhomes has 494,694 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2000 as its year built. It is classed as multifamily housing.
Is River Ranch Townhomes 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, “River Ranch Townhomes, Santa Clarita, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/river-ranch-townhomes-b4b8ed8d (data as of July 9, 2026).