Garage Conversions: Topanga vs Torrance
How do garage conversions rules compare between Topanga, CA and Torrance, CA?
Topanga and Torrance have similar restriction levels.
Topanga, CA
Los Angeles County
Garage conversions to ADUs in unincorporated Topanga are governed by LA County Code Title 22 §22.140.640 and California Government Code §65852.2. No replacement parking is required when a garage is converted to an ADU, and existing setbacks are preserved. A Coastal Development Permit applies in the Santa Monica Mountains Local Coastal Program area.
View full Topanga rules →Torrance, CA
Los Angeles County
Torrance allows garage conversions to ADUs under TMC §92.2.10. Replaced parking is not required. JADUs up to 500 sq ft can be built within attached garages. Ministerial approval within 60 days.
View full Torrance rules →Key Facts Comparison
| Fact | Topanga | Torrance |
|---|---|---|
| Governing Code | LA County Code §22.140.640 | - |
| Replacement Parking | Not required | Not required for conversions |
| Existing Setbacks | Grandfathered | - |
| Coastal Permit | Required in SMM LCP | - |
| Permit Required | Yes — LA County building | - |
| Code Section | - | TMC §92.2.10 |
| JADU in Garage | - | Up to 500 sq ft |
| Setback Exemption | - | For existing structure conversions |
| Review Period | - | 60 days max |
Highlighted rows indicate differences between cities.
Topanga FAQ
Do I need to add parking if I convert my Topanga garage to an ADU?
No. Cal. Gov Code §65852.2 and LA County Code §22.140.640 prohibit the county from requiring replacement parking when a garage is converted to an ADU.
Do I still need a Coastal Development Permit for a garage conversion?
Yes, typically. Most Topanga properties fall within the certified Santa Monica Mountains LCP, so a CDP is required in addition to the building permit unless a categorical exclusion applies.
Who issues the permit for a Topanga garage conversion?
LA County Public Works (Building & Safety) issues the building permit; LA County Regional Planning processes the ministerial ADU review and any Coastal Development Permit.
Torrance FAQ
Can I convert my garage into living space in Torrance?
Torrance allows garage conversions to ADUs under TMC §92.2.10. Replaced parking is not required. JADUs up to 500 sq ft can be built within attached garages. Ministerial approval within 60 days.
What permits do I need for a garage conversion in Torrance?
Code Section: TMC §92.2.10. Replacement Parking: Not required for conversions. JADU in Garage: Up to 500 sq ft. Setback Exemption: For existing structure conversions.
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