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🏗️ Accessory Structures/Garage Conversions

Garage Conversions: El Monte vs Pasadena

How do garage conversions rules compare between El Monte, CA and Pasadena, CA?

El Monte has fewer restrictions than Pasadena.

El Monte, CA

Los Angeles County

Few Restrictions

El Monte permits garage-to-ADU conversions under state ADU law: no replacement parking required and the converted garage may be reconstructed up to its original footprint as an ADU.

View full El Monte rules →

Pasadena, CA

Los Angeles County

Some Restrictions

Garage conversions to ADUs in Pasadena are streamlined under California law. Converting existing garage space to living quarters does not require replacement parking. Building permits are required.

View full Pasadena rules →

Key Facts Comparison

FactEl MontePasadena
Garage-to-ADU conversionAllowed by-right under state law-
Replacement parkingNot required (Gov. Code §66314(a)(1)(D))-
Permit requiredYes — building permit + plan check-
Non-ADU conversionReplacement parking required-
Max ADU size (attached/converted)1,200 sq ft or 50% of primary, whichever greater-
Setback for existing garageExisting nonconforming setbacks allowed-
Permit-Building permit required
Replacement Parking-Not required under CA law
Building Code-Must meet habitable space standards
Setbacks-Existing nonconformities grandfathered

Highlighted rows indicate differences between cities.

El Monte FAQ

Do I have to replace the parking if I convert my garage to an ADU?

No. Under California Government Code §66314 (the state ADU law) and El Monte's ADU/JADU Program Guidelines, no replacement parking is required when a garage, carport, or covered parking structure is demolished or converted in conjunction with creating an ADU.

Can I convert my garage into a bedroom without making it an ADU?

Only with a permit, and you must provide replacement on-site parking that meets EMMC Title 17 residential parking standards. Most R-1 lots require 2 covered spaces, so a straight bedroom conversion is often infeasible. Converting to an ADU avoids the parking-replacement requirement.

Pasadena FAQ

Can I convert my garage in Pasadena?

Yes. California law streamlines garage-to-ADU conversions. No replacement parking is required. A building permit is needed.

Do I need to provide replacement parking?

No. California law waives replacement parking requirements for garage-to-ADU conversions.

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