9230 MASON AVE
Non-Refrigerated Warehouse in Los Angeles, CA · 91311
LA Municipal Code 22.610.1 (EBEWE) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 98 (band A) |
| Site EUI | 1.6 kBtu/ft² |
| Source EUI | 4.6 kBtu/ft² |
| GHG emissions | 5 tCO₂e |
| GHG intensity | — |
| Gross floor area | 54,000 sq ft |
| Source record | la:387121909422:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 98 | +97 | 1.6 kBtu/ft² | 5 tCO₂e |
| 2024 | 1 | ±0 | 37.4 kBtu/ft² | 134 tCO₂e |
| 2023 | 1 | -9 | 31.8 kBtu/ft² | 122 tCO₂e |
| 2022 | 10 | +2 | 18.5 kBtu/ft² | 68 tCO₂e |
| 2021 | 8 | +6 | 19.7 kBtu/ft² | 64 tCO₂e |
| 2020 | 2 | +1 | 30.4 kBtu/ft² | 109 tCO₂e |
| 2019 | 1 | ±0 | 34.8 kBtu/ft² | 132 tCO₂e |
| 2018 | 1 | ±0 | 47.9 kBtu/ft² | 182 tCO₂e |
| 2017 | 1 | 39.3 kBtu/ft² | 149 tCO₂e |
Compliance context
LA Municipal Code 22.610.1 (EBEWE)
EBEWE requires annual benchmarking plus 5-year audit/retro-commissioning cycles for buildings over 20,000 sq ft; non-compliance is subject to citation and fines.
Ownership
Rexford Industrial
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Location
- Address
- 9230 MASON AVE
- City
- Los Angeles
- State
- California
- ZIP
- 91311
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in Los Angeles · biggest emitters
Frequently asked questions
What is 9230 MASON AVE's energy grade?
9230 MASON AVE scores 98 out of 100 on ENERGY STAR — band A (High performer (85–100)) — in its 2025 Los Angeles disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 9230 MASON AVE use?
Its 2025 site energy-use intensity was 1.6 kBtu/ft² (4.6 kBtu/ft² source) across 54,000 sq ft.
What are 9230 MASON AVE's carbon emissions?
9230 MASON AVE reported 5 tCO₂e of greenhouse-gas emissions for 2025. EBEWE requires annual benchmarking plus 5-year audit/retro-commissioning cycles for buildings over 20,000 sq ft; non-compliance is subject to citation and fines.
Dataset updated . Source: Existing Buildings Energy & Water Efficiency (EBEWE) disclosure, record la:387121909422:2025.