Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn
Non-Refrigerated Warehouse in California, CA · 15301 Shoemaker Avenue, Norwalk · 90650
At a glance
Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn is a 40,044-square-foot non-refrigerated warehouse at 15301 Shoemaker Avenue, Norwalk in Norwalk, California, built in 1975. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 79 out of 100 (grade B), a site energy-use intensity of 7.2 kBtu/ft² and 19 tCO₂e of greenhouse-gas emissions. That score is higher than 50% of the 2,227 scored non-refrigerated warehouse buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 79 (band B) |
| Site EUI | 7.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 19 tCO₂e |
| GHG intensity | 0.5 kgCO₂e/ft² |
| Electricity | 69,050 kWh |
| Natural gas | 498 therms |
| Gross floor area | 40,044 sq ft |
| Source record | california:20474445:2023 |
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
- 15301 Shoemaker Avenue, Norwalk
- City
- California
- State
- California
- ZIP
- 90650
- Coordinates
- 33.89201, -118.05648
Within ~1 km
Nearby benchmarked buildings
- Goodman Gateway Santa Fe Springsscore 98
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- Mid-Counties Business Park-Bscore 88
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- Z058810-13012 Molette Stscore 91
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- Br46389-Odonnell Cerr. Iii-16030score 89
Non-Refrigerated Warehouse · 290,000 sq ft
Non-Refrigerated Warehouse · 181,472 sq ft
- Shoemakerscore 95
Non-Refrigerated Warehouse · 174,342 sq ft
See also: most efficient in California · biggest emitters
How does Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn 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. Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn's ENERGY STAR score of 79 compares with an average of 68 across the 2,227 that report a score; it scores higher than 50% of them and lower than 49%. Its site EUI of 7.2 kBtu/ft² is about 67% below 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 0.5 kgCO₂e/ft² is about 64% below the group average of 1.4 kgCO₂e/ft².
At 40,044 sq ft, it is about 77% below the average floor area of 173,929 sq ft for those buildings. It was built in 1975, 13 years earlier 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.
What does an ENERGY STAR score of 79 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 79 means the building performs better than about 79% of its national peers. BuildingCensus bands the score into report-card grades; 79 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. Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn's 7.2 kBtu/ft² across 40,044 sq ft works out to about 0.3 billion Btu (84 MWh-equivalent) in 2023. The disclosure also reports 69,050 kWh of electricity and 498 therms of natural gas for the year.
Which law requires Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn to report its energy use?
Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn 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 2023 disclosure (source record california:20474445:2023). 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
- Camino Santa Fe Business Park - 8380· 39,377 sq ft
- Emuhsd Bus Garage/Warehouse· 39,177 sq ft · score 1 (D)
- Building Number Twenty-Five, Llc· 39,000 sq ft · score 63 (C)
- Stadium Plaza Business Park - 1541-1551 Harris Court· 38,228 sq ft
- San Gabriel Valley - Industry Centre - 17910-17920 Ajax· 37,522 sq ft
- San Gabriel Valley - Industry Centre - 17930-17950 Rowland· 36,900 sq ft
- 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 Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn's energy grade?
Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn scores 79 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn use?
Its 2023 site energy-use intensity was 7.2 kBtu/ft² across 40,044 sq ft, including 69,050 kWh of electricity and 498 therms of natural gas.
What are Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn's carbon emissions?
Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn reported 19 tCO₂e of greenhouse-gas emissions (0.5 kgCO₂e/ft²) for 2023.
Where is Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn?
Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn is at 15301 Shoemaker Avenue, Norwalk, in Norwalk, California 90650. Its coordinates are 33.89201, -118.05648 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn and when was it built?
Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn has 40,044 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1975 as its year built. It is classed as non-refrigerated warehouse.
Is Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2023 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, “Z436410-Norwalk Bldg. 2 - 15301-15319 Blackburn, Norwalk, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/z436410-norwalk-bldg-2-15301-15319-blackburn-a96a493d (data as of July 9, 2026).