Z436413-Norwalk Bldg.9 - 15600 Blackburn
Non-Refrigerated Warehouse in California, CA · 15600 Blackburn Avenue, Norwalk · 90650
At a glance
Z436413-Norwalk Bldg.9 - 15600 Blackburn is a 60,167-square-foot non-refrigerated warehouse at 15600 Blackburn Avenue, Norwalk in Norwalk, California, built in 1977. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 88 out of 100 (grade A), a site energy-use intensity of 5.1 kBtu/ft² and 22 tCO₂e of greenhouse-gas emissions. That score is higher than 63% 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 | 88 (band A) |
| Site EUI | 5.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 22 tCO₂e |
| GHG intensity | 0.4 kgCO₂e/ft² |
| Electricity | 75,495 kWh |
| Natural gas | 909 therms |
| Gross floor area | 60,167 sq ft |
| Source record | california:20474479:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 88 | +4 | 5.1 kBtu/ft² | 22 tCO₂e |
| 2023 | 84 | -5 | 7.1 kBtu/ft² | 28 tCO₂e |
| 2022 | 89 | 5.4 kBtu/ft² | 23 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
- 15600 Blackburn Avenue, Norwalk
- City
- California
- State
- California
- ZIP
- 90650
- Coordinates
- 33.88949, -118.05758
Within ~1 km
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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
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See also: most efficient in California · biggest emitters
How does Z436413-Norwalk Bldg.9 - 15600 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. Z436413-Norwalk Bldg.9 - 15600 Blackburn's ENERGY STAR score of 88 compares with an average of 68 across the 2,227 that report a score; it scores higher than 63% of them and lower than 35%. Its site EUI of 5.1 kBtu/ft² is about 76% 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 0.4 kgCO₂e/ft² is about 74% below the group average of 1.4 kgCO₂e/ft².
At 60,167 sq ft, it is about 65% below the average floor area of 173,929 sq ft for those buildings. It was built in 1977, 11 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.
How has Z436413-Norwalk Bldg.9 - 15600 Blackburn's energy performance changed over time?
BuildingCensus holds 3 California disclosures for Z436413-Norwalk Bldg.9 - 15600 Blackburn, covering report years 2022–2024. Its ENERGY STAR score went from 89 in 2022 to 88 in 2024 (-1 points); its best year on file was 2022, at 89. Site EUI moved from 5.4 kBtu/ft² (2022) to 5.1 kBtu/ft² (2024), a 6% decrease. Reported emissions went from 23 tCO₂e to 22 tCO₂e over the same span (down 6%).
What does an ENERGY STAR score of 88 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 88 means the building performs better than about 88% of its national peers. BuildingCensus bands the score into report-card grades; 88 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. Z436413-Norwalk Bldg.9 - 15600 Blackburn's 5.1 kBtu/ft² across 60,167 sq ft works out to about 0.3 billion Btu (90 MWh-equivalent) in 2024. The disclosure also reports 75,495 kWh of electricity and 909 therms of natural gas for the year.
Which law requires Z436413-Norwalk Bldg.9 - 15600 Blackburn to report its energy use?
Z436413-Norwalk Bldg.9 - 15600 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 2024 disclosure (source record california:20474479:2024). 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
- 7142 E Slauson Ave· 60,156 sq ft · score 98 (A)
- 401 West Channel Rd, Benicia, Ca 94510· 60,155 sq ft · score 87 (A)
- 15850 Slover Avenue (Rexford Ab 802)· 60,127 sq ft · score 92 (A)
- Bellegrave Business Park - 10317 Birtcher Dr· 60,124 sq ft · score 43 (D)
- 230 W Rosecrans· 60,115 sq ft · score 96 (A)
- Arow Volpey 2975 Llc· 60,080 sq ft · score 95 (A)
- 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 Z436413-Norwalk Bldg.9 - 15600 Blackburn's energy grade?
Z436413-Norwalk Bldg.9 - 15600 Blackburn scores 88 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 Z436413-Norwalk Bldg.9 - 15600 Blackburn use?
Its 2024 site energy-use intensity was 5.1 kBtu/ft² across 60,167 sq ft, including 75,495 kWh of electricity and 909 therms of natural gas.
What are Z436413-Norwalk Bldg.9 - 15600 Blackburn's carbon emissions?
Z436413-Norwalk Bldg.9 - 15600 Blackburn reported 22 tCO₂e of greenhouse-gas emissions (0.4 kgCO₂e/ft²) for 2024.
Where is Z436413-Norwalk Bldg.9 - 15600 Blackburn?
Z436413-Norwalk Bldg.9 - 15600 Blackburn is at 15600 Blackburn Avenue, Norwalk, in Norwalk, California 90650. Its coordinates are 33.88949, -118.05758 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Z436413-Norwalk Bldg.9 - 15600 Blackburn and when was it built?
Z436413-Norwalk Bldg.9 - 15600 Blackburn has 60,167 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1977 as its year built. It is classed as non-refrigerated warehouse.
Is Z436413-Norwalk Bldg.9 - 15600 Blackburn 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, “Z436413-Norwalk Bldg.9 - 15600 Blackburn, Norwalk, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/z436413-norwalk-bldg-9-15600-blackburn-bd214ac2 (data as of July 9, 2026).