Southern California Ii: Harshfield Terrace
Multifamily Housing in California, CA · 6709 Columbia Way, Quartz Hill · 93536
At a glance
Southern California Ii: Harshfield Terrace is a 67,985-square-foot multifamily housing building at 6709 Columbia Way, Quartz Hill in Quartz Hill, California, built in 2010. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 94 out of 100 (grade A), a site energy-use intensity of 28.9 kBtu/ft² and 125 tCO₂e of greenhouse-gas emissions. That score is higher than 55% 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 | 94 (band A) |
| Site EUI | 28.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 125 tCO₂e |
| GHG intensity | 1.8 kgCO₂e/ft² |
| Electricity | 403,391 kWh |
| Natural gas | 6,276 therms |
| Gross floor area | 67,985 sq ft |
| Source record | california:5043796:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 94 | ±0 | 28.9 kBtu/ft² | 125 tCO₂e |
| 2022 | 94 | +1 | 28.6 kBtu/ft² | 129 tCO₂e |
| 2021 | 93 | ±0 | 28.8 kBtu/ft² | 118 tCO₂e |
| 2020 | 93 | +5 | 29.4 kBtu/ft² | 126 tCO₂e |
| 2019 | 88 | 31.0 kBtu/ft² | 124 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
- 6709 Columbia Way, Quartz Hill
- City
- California
- State
- California
- ZIP
- 93536
- Coordinates
- 34.64624, -118.25029
Within ~1 km
Nearby benchmarked buildings
No other benchmarked buildings within ~1 km.
See also: most efficient in California · biggest emitters
How does Southern California Ii: Harshfield Terrace 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. Southern California Ii: Harshfield Terrace's ENERGY STAR score of 94 compares with an average of 82 across the 9,612 that report a score; it scores higher than 55% of them and lower than 42%. Its site EUI of 28.9 kBtu/ft² is about 16% 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 1.8 kgCO₂e/ft² is about 13% below the group average of 2.1 kgCO₂e/ft².
At 67,985 sq ft, it is about half of the average floor area of 150,919 sq ft for those buildings. It was built in 2010, 22 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 Southern California Ii: Harshfield Terrace's energy performance changed over time?
BuildingCensus holds 5 California disclosures for Southern California Ii: Harshfield Terrace, covering report years 2019, 2020, 2021, 2022, 2024. Its ENERGY STAR score went from 88 in 2019 to 94 in 2024 (+6 points); its best year on file was 2022, at 94. Site EUI moved from 31.0 kBtu/ft² (2019) to 28.9 kBtu/ft² (2024), a 7% decrease. Reported emissions went from 124 tCO₂e to 125 tCO₂e over the same span (up 1%).
What does an ENERGY STAR score of 94 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 94 means the building performs better than about 94% of its national peers. BuildingCensus bands the score into report-card grades; 94 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. Southern California Ii: Harshfield Terrace's 28.9 kBtu/ft² across 67,985 sq ft works out to about 2 billion Btu (576 MWh-equivalent) in 2024. The disclosure also reports 403,391 kWh of electricity and 6,276 therms of natural gas for the year.
Which law requires Southern California Ii: Harshfield Terrace to report its energy use?
Southern California Ii: Harshfield Terrace 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:5043796:2024). 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
- 3090 E Frontera St· 67,984 sq ft · score 100 (A)
- Maplewood· 67,950 sq ft · score 97 (A)
- 6712 Woodman Ave· 67,948 sq ft · score 88 (A)
- Burlington City Lights (Br268)· 67,940 sq ft · score 91 (A)
- Southern California I: Colonia Jess Lopez· 67,923 sq ft · score 99 (A)
- 4536 W 118Th St, Hawthorne, Ca 90250, Usa· 67,880 sq ft · score 97 (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 Southern California Ii: Harshfield Terrace's energy grade?
Southern California Ii: Harshfield Terrace scores 94 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 Southern California Ii: Harshfield Terrace use?
Its 2024 site energy-use intensity was 28.9 kBtu/ft² across 67,985 sq ft, including 403,391 kWh of electricity and 6,276 therms of natural gas.
What are Southern California Ii: Harshfield Terrace's carbon emissions?
Southern California Ii: Harshfield Terrace reported 125 tCO₂e of greenhouse-gas emissions (1.8 kgCO₂e/ft²) for 2024.
Where is Southern California Ii: Harshfield Terrace?
Southern California Ii: Harshfield Terrace is at 6709 Columbia Way, Quartz Hill, in Quartz Hill, California 93536. Its coordinates are 34.64624, -118.25029 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Southern California Ii: Harshfield Terrace and when was it built?
Southern California Ii: Harshfield Terrace has 67,985 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2010 as its year built. It is classed as multifamily housing.
Is Southern California Ii: Harshfield Terrace 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, “Southern California Ii: Harshfield Terrace, Quartz Hill, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/southern-california-ii-harshfield-terrace-7099fd79 (data as of July 9, 2026).