Clayton Gardens-Gk Mgt
Multifamily Housing in California, CA · 4220 Clayton Road, Concord · 94521
At a glance
Clayton Gardens-Gk Mgt is a 112,127-square-foot multifamily housing building at 4220 Clayton Road, Concord in Concord, California, built in 1979. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 97 out of 100 (grade A), a site energy-use intensity of 28.7 kBtu/ft² and 195 tCO₂e of greenhouse-gas emissions. That score is higher than 63% 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 | 97 (band A) |
| Site EUI | 28.7 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 195 tCO₂e |
| GHG intensity | 1.7 kgCO₂e/ft² |
| Electricity | 514,321 kWh |
| Natural gas | 14,809 therms |
| Gross floor area | 112,127 sq ft |
| Source record | california:7535226:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 97 | ±0 | 28.7 kBtu/ft² | 195 tCO₂e |
| 2023 | 97 | 28.7 kBtu/ft² | 203 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
- 4220 Clayton Road, Concord
- City
- California
- State
- California
- ZIP
- 94521
- Coordinates
- 37.96534, -121.99676
Within ~1 km
Nearby benchmarked buildings
- 22319-Concord / Treat Blvdscore —
Self-Storage Facility · 71,179 sq ft
- 4230 Clayton Road - Ab802score 86
Senior Living Community · 68,854 sq ft
- Diablo View (Db018)score 92
Multifamily Housing · 61,729 sq ft
- 01192- Concord, Cascore 37
Supermarket/Grocery Store · 50,754 sq ft
See also: most efficient in California · biggest emitters
How does Clayton Gardens-Gk Mgt 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. Clayton Gardens-Gk Mgt's ENERGY STAR score of 97 compares with an average of 82 across the 9,612 that report a score; it scores higher than 63% of them and lower than 34%. Its site EUI of 28.7 kBtu/ft² is about 17% 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 17% below the group average of 2.1 kgCO₂e/ft².
At 112,127 sq ft, it is about 26% below the average floor area of 150,919 sq ft for those buildings. It was built in 1979, 9 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 Clayton Gardens-Gk Mgt's energy performance changed over time?
BuildingCensus holds 2 California disclosures for Clayton Gardens-Gk Mgt, covering report years 2023–2024. Its ENERGY STAR score was 97 in both 2023 and 2024. Site EUI moved from 28.7 kBtu/ft² (2023) to 28.7 kBtu/ft² (2024), an 0% increase. Reported emissions went from 203 tCO₂e to 195 tCO₂e over the same span (down 4%).
What does an ENERGY STAR score of 97 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 97 means the building performs better than about 97% of its national peers. BuildingCensus bands the score into report-card grades; 97 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. Clayton Gardens-Gk Mgt's 28.7 kBtu/ft² across 112,127 sq ft works out to about 3.2 billion Btu (943 MWh-equivalent) in 2024. The disclosure also reports 514,321 kWh of electricity and 14,809 therms of natural gas for the year.
Which law requires Clayton Gardens-Gk Mgt to report its energy use?
Clayton Gardens-Gk Mgt 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:7535226:2024). 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
- Carriage House Apartments· 112,076 sq ft · score 81 (B)
- Montana Bwb Llc· 112,046 sq ft · score 94 (A)
- Ca067_Avalon At Mission Bay I (Building P)· 112,032 sq ft · score 27 (D)
- Minnewawa· 112,000 sq ft · score 100 (A)
- The Crest· 112,000 sq ft · score 80 (B)
- Las Brisas - Cannon· 112,000 sq ft · score 70 (B)
- 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 Clayton Gardens-Gk Mgt's energy grade?
Clayton Gardens-Gk Mgt scores 97 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 Clayton Gardens-Gk Mgt use?
Its 2024 site energy-use intensity was 28.7 kBtu/ft² across 112,127 sq ft, including 514,321 kWh of electricity and 14,809 therms of natural gas.
What are Clayton Gardens-Gk Mgt's carbon emissions?
Clayton Gardens-Gk Mgt reported 195 tCO₂e of greenhouse-gas emissions (1.7 kgCO₂e/ft²) for 2024.
Where is Clayton Gardens-Gk Mgt?
Clayton Gardens-Gk Mgt is at 4220 Clayton Road, Concord, in Concord, California 94521. Its coordinates are 37.96534, -121.99676 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Clayton Gardens-Gk Mgt and when was it built?
Clayton Gardens-Gk Mgt has 112,127 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1979 as its year built. It is classed as multifamily housing.
Is Clayton Gardens-Gk Mgt 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).
Working with California building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Clayton Gardens-Gk Mgt, Concord, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/clayton-gardens-gk-mgt-4f1d831b (data as of July 9, 2026).