Br46507-Concord I-4020 Nelson Ave
Non-Refrigerated Warehouse in California, CA · 4020 Nelson Avenue, Concord · 94520
At a glance
Br46507-Concord I-4020 Nelson Ave is a 99,840-square-foot non-refrigerated warehouse at 4020 Nelson Avenue, Concord in Concord, California, built in 1996. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 72 out of 100 (grade B), a site energy-use intensity of 10.6 kBtu/ft² and 70 tCO₂e of greenhouse-gas emissions. That score is higher than 41% of the 2,227 scored non-refrigerated warehouse buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 72 (band B) |
| Site EUI | 10.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 70 tCO₂e |
| GHG intensity | 0.7 kgCO₂e/ft² |
| Electricity | 309,327 kWh |
| Gross floor area | 99,840 sq ft |
| Source record | california:11708935:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 72 | -3 | 10.6 kBtu/ft² | 70 tCO₂e |
| 2023 | 75 | -3 | 10.1 kBtu/ft² | 72 tCO₂e |
| 2022 | 78 | +4 | 9.5 kBtu/ft² | 65 tCO₂e |
| 2021 | 74 | -1 | 10.2 kBtu/ft² | 61 tCO₂e |
| 2020 | 75 | 10.0 kBtu/ft² | 67 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
- 4020 Nelson Avenue, Concord
- City
- California
- State
- California
- ZIP
- 94520
- Coordinates
- 38.00658, -122.04521
Within ~1 km
Nearby benchmarked buildings
- Br44295-Parentscore —
Non-Refrigerated Warehouse · 245,930 sq ft
- W002604-Concord Cascore 86
Wholesale Club/Supercenter · 135,399 sq ft
- 3200-3205 Northwood Drivescore 83
Multifamily Housing · 117,497 sq ft
- Br46510-Concord Ii-1920 Mark Crtscore 53
Non-Refrigerated Warehouse · 64,125 sq ft
Self-Storage Facility · 58,775 sq ft
- 1526-Concord, Cascore —
Self-Storage Facility · 50,502 sq ft
See also: most efficient in California · biggest emitters
How does Br46507-Concord I-4020 Nelson Ave compare with other non-refrigerated warehouse buildings in California?
The latest disclosures cover 2,867 non-refrigerated warehouse buildings in California, out of 40,029 buildings citywide. Br46507-Concord I-4020 Nelson Ave's ENERGY STAR score of 72 compares with an average of 68 across the 2,227 that report a score; it scores higher than 41% of them and lower than 58%. Its site EUI of 10.6 kBtu/ft² is about half of the average of 21.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.7 kgCO₂e/ft² is about half of the group average of 1.4 kgCO₂e/ft².
At 99,840 sq ft, it is about 43% below the average floor area of 173,929 sq ft for those buildings. It was built in 1996, 8 years later than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 4,723 non-refrigerated warehouse buildings average an ENERGY STAR score of 66 and a site EUI of 26.0 kBtu/ft².
How has Br46507-Concord I-4020 Nelson Ave's energy performance changed over time?
BuildingCensus holds 5 California disclosures for Br46507-Concord I-4020 Nelson Ave, covering report years 2020–2024. Its ENERGY STAR score went from 75 in 2020 to 72 in 2024 (-3 points); its best year on file was 2022, at 78. Site EUI moved from 10.0 kBtu/ft² (2020) to 10.6 kBtu/ft² (2024), an 6% increase. Reported emissions went from 67 tCO₂e to 70 tCO₂e over the same span (up 4%).
What does an ENERGY STAR score of 72 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 72 means the building performs better than about 72% of its national peers. BuildingCensus bands the score into report-card grades; 72 falls in band B — above median (70–84). It sits 3 points below 75, the threshold for ENERGY STAR certification. 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. Br46507-Concord I-4020 Nelson Ave's 10.6 kBtu/ft² across 99,840 sq ft works out to about 1.1 billion Btu (310 MWh-equivalent) in 2024. The disclosure also reports 309,327 kWh of electricity for the year.
Which law requires Br46507-Concord I-4020 Nelson Ave to report its energy use?
Br46507-Concord I-4020 Nelson Ave 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:11708935:2024). 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 non-refrigerated warehouse buildings in California
- West Winton I - 21053 Alexander· 99,827 sq ft · score 2 (D)
- Br46500-Benicia Wh-537 Stone Rd· 99,792 sq ft · score 90 (A)
- Grand General Accessories· 99,782 sq ft · score 94 (A)
- Caster Family Trust - 4680 Alvarado Canyon Rd, San Diego, Ca 92120· 99,775 sq ft · score 100 (A)
- Br42298-3740 Seaport Blvd· 99,607 sq ft · score 75 (B)
- Redlands Industrial Center Ia· 99,580 sq ft · score 52 (D)
- Non-Refrigerated Warehouse buildings in California· 2,867 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 Br46507-Concord I-4020 Nelson Ave's energy grade?
Br46507-Concord I-4020 Nelson Ave scores 72 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 Br46507-Concord I-4020 Nelson Ave use?
Its 2024 site energy-use intensity was 10.6 kBtu/ft² across 99,840 sq ft, including 309,327 kWh of electricity.
What are Br46507-Concord I-4020 Nelson Ave's carbon emissions?
Br46507-Concord I-4020 Nelson Ave reported 70 tCO₂e of greenhouse-gas emissions (0.7 kgCO₂e/ft²) for 2024.
Where is Br46507-Concord I-4020 Nelson Ave?
Br46507-Concord I-4020 Nelson Ave is at 4020 Nelson Avenue, Concord, in Concord, California 94520. Its coordinates are 38.00658, -122.04521 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Br46507-Concord I-4020 Nelson Ave and when was it built?
Br46507-Concord I-4020 Nelson Ave has 99,840 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1996 as its year built. It is classed as non-refrigerated warehouse.
Is Br46507-Concord I-4020 Nelson Ave 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, “Br46507-Concord I-4020 Nelson Ave, Concord, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/br46507-concord-i-4020-nelson-ave-4c12822a (data as of July 9, 2026).