Garage Conversions: Glendale vs South San Gabriel
How do garage conversions rules compare between Glendale, CA and South San Gabriel, CA?
Glendale has fewer restrictions than South San Gabriel.
Glendale, CA
Los Angeles County
Glendale allows garage-to-ADU and garage-to-JADU conversions under GMC §30.34.080, consistent with California Government Code §65852.2. No replacement parking is required when an existing garage is converted to an ADU, and the existing setbacks are preserved for the conversion footprint.
View full Glendale rules →South San Gabriel, CA
Los Angeles County
LA County allows converting existing garages to ADUs or JADUs in unincorporated areas under the ADU Ordinance. Garage conversions are the most affordable ADU option at roughly $80–$150K. Replacement parking is not required by state law.
View full South San Gabriel rules →Key Facts Comparison
| Fact | Glendale | South San Gabriel |
|---|---|---|
| Code Section | GMC §30.34.080; Cal. Gov Code §65852.2 | - |
| Replacement Parking | Not required | Not required |
| Existing Setbacks | Preserved for conversion | - |
| Multifamily Conversion | Up to 25% of existing units | - |
| Permit Required | Yes — building permit | - |
| JADU Max | - | 500 sq ft |
| Permit From | - | Public Works B&S |
| Cost Range | - | $80K–$150K typical |
| State Law | - | Gov. Code §65852.2 |
Highlighted rows indicate differences between cities.
Glendale FAQ
Do I need to replace my parking if I convert my Glendale garage to an ADU?
No. Cal. Gov Code §65852.2 and GMC §30.34.080 prohibit Glendale from requiring replacement parking when an existing garage is converted to an ADU.
Can my Glendale multifamily building add conversion ADUs?
Yes. Under GMC §30.34.080, conversion ADUs may be created in non-livable space within an existing multifamily building up to 25% of the existing unit count.
Do I still need a permit to convert a Glendale garage?
Yes. A building permit from Glendale Community Development is required for any change of use from garage to habitable space, though the planning review is ministerial under §30.34.080.
South San Gabriel FAQ
Can I convert my garage to a living space in unincorporated LA County?
Yes. Garage conversions to ADUs or JADUs are allowed under the ADU Ordinance. You need a building permit from Public Works and must meet current building code for habitable space.
Do I need to add replacement parking if I convert my garage?
No. California state law prohibits LA County from requiring replacement parking when a garage is converted to an ADU.
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