Blmas (R5Mas) - Mason Ave 9301
Manufacturing/Industrial Plant in California, CA · 9301 Mason Avenue, Los Angeles · 91311
At a glance
Blmas (R5Mas) - Mason Ave 9301 is a 106,135-square-foot manufacturing/industrial plant at 9301 Mason Avenue, Los Angeles in Los Angeles, California, built in 1968. In its 2024 California benchmarking disclosure it reported a site energy-use intensity of 72.5 kBtu/ft² and 502 tCO₂e of greenhouse-gas emissions.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 72.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 502 tCO₂e |
| GHG intensity | 4.7 kgCO₂e/ft² |
| Electricity | 2,168,550 kWh |
| Gross floor area | 106,135 sq ft |
| Source record | california:6062176:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 72.5 kBtu/ft² | 502 tCO₂e | |
| 2023 | — | 68.8 kBtu/ft² | 511 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
- 9301 Mason Avenue, Los Angeles
- City
- California
- State
- California
- ZIP
- 91311
- Coordinates
- 34.24031, -118.58071
Within ~1 km
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- Zelman Chatsworth Lpscore —
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- 9151 Mason Avescore 100
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See also: most efficient in California · biggest emitters
How does Blmas (R5Mas) - Mason Ave 9301 compare with other manufacturing/industrial plant buildings in California?
The latest disclosures cover 982 manufacturing/industrial plant buildings in California, out of 40,029 buildings citywide. Its site EUI of 72.5 kBtu/ft² is about 43% below the average of 127.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.7 kgCO₂e/ft² is about 36% below the group average of 7.4 kgCO₂e/ft².
At 106,135 sq ft, it is about 22% below the average floor area of 135,409 sq ft for those buildings. It was built in 1968, 14 years earlier than the group's average year built (1982). Across all 24 jurisdictions BuildingCensus covers, the 2,372 manufacturing/industrial plant buildings average an ENERGY STAR score of 67 and a site EUI of 126.3 kBtu/ft².
How has Blmas (R5Mas) - Mason Ave 9301's energy performance changed over time?
BuildingCensus holds 2 California disclosures for Blmas (R5Mas) - Mason Ave 9301, covering report years 2023–2024. Site EUI moved from 68.8 kBtu/ft² (2023) to 72.5 kBtu/ft² (2024), an 5% increase. Reported emissions went from 511 tCO₂e to 502 tCO₂e over the same span (down 2%).
What does a site EUI of 72.5 kBtu/ft² mean?
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. Blmas (R5Mas) - Mason Ave 9301's 72.5 kBtu/ft² across 106,135 sq ft works out to about 7.7 billion Btu (2,255 MWh-equivalent) in 2024. The disclosure also reports 2,168,550 kWh of electricity for the year.
Which law requires Blmas (R5Mas) - Mason Ave 9301 to report its energy use?
Blmas (R5Mas) - Mason Ave 9301 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:6062176:2024). 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 manufacturing/industrial plant buildings in California
- Br46464-Warm Springs Ind.-48021-48027· 106,100 sq ft · EUI 23.9 kBtu/ft²
- 3150 Ana Street (Rexford Ab 802)· 105,970 sq ft
- Rocklin - 170 Cyber Ct, Rocklin, Ca 95765· 105,948 sq ft · EUI 46.5 kBtu/ft²
- Imperial Building B - 13450 Imperial Hwy., Santa Fe Springs, Ca 90670, Usa· 105,824 sq ft · EUI 2.0 kBtu/ft²
- B109· 105,721 sq ft · EUI 144.6 kBtu/ft²
- 28680 Braxton Ave· 105,632 sq ft · EUI 64.1 kBtu/ft²
- Manufacturing/Industrial Plant buildings in California· 982 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 Blmas (R5Mas) - Mason Ave 9301's energy grade?
Blmas (R5Mas) - Mason Ave 9301 did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 72.5 kBtu/ft².
How much energy does Blmas (R5Mas) - Mason Ave 9301 use?
Its 2024 site energy-use intensity was 72.5 kBtu/ft² across 106,135 sq ft, including 2,168,550 kWh of electricity.
What are Blmas (R5Mas) - Mason Ave 9301's carbon emissions?
Blmas (R5Mas) - Mason Ave 9301 reported 502 tCO₂e of greenhouse-gas emissions (4.7 kgCO₂e/ft²) for 2024.
Where is Blmas (R5Mas) - Mason Ave 9301?
Blmas (R5Mas) - Mason Ave 9301 is at 9301 Mason Avenue, Los Angeles, in Los Angeles, California 91311. Its coordinates are 34.24031, -118.58071 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Blmas (R5Mas) - Mason Ave 9301 and when was it built?
Blmas (R5Mas) - Mason Ave 9301 has 106,135 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1968 as its year built. It is classed as manufacturing/industrial plant.
Is Blmas (R5Mas) - Mason Ave 9301 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, “Blmas (R5Mas) - Mason Ave 9301, Los Angeles, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/blmas-r5mas-mason-ave-9301-3f089683 (data as of July 9, 2026).