Garage Conversions: El Monte vs South Gate
How do garage conversions rules compare between El Monte, CA and South Gate, CA?
El Monte and South Gate have similar restriction levels.
El Monte, CA
Los Angeles County
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 →South Gate, CA
Los Angeles County
Garage conversions in South Gate are governed primarily by California state ADU law (Gov. Code §65852.2), which preempts local single-family-zone restrictions and requires ministerial approval of conversion ADUs. South Gate implements the state standards through SGMC Ch. 11.43 (most recently updated via Ordinance 2025-01-CC).
View full South Gate rules →Key Facts Comparison
| Fact | El Monte | South Gate |
|---|---|---|
| Garage-to-ADU conversion | Allowed by-right under state law | - |
| Replacement parking | Not required (Gov. Code §66314(a)(1)(D)) | Prohibited when garage was previously required parking |
| Permit required | Yes — building permit + plan check | - |
| Non-ADU conversion | Replacement parking required | - |
| Max ADU size (attached/converted) | 1,200 sq ft or 50% of primary, whichever greater | - |
| Setback for existing garage | Existing nonconforming setbacks allowed | - |
| State preemption | - | Cal. Gov. Code §65852.2 (re-codified by SB 477, 2024) |
| Approval timing | - | Ministerial within 60 days; no discretionary review |
| Lot standards waived | - | Conversion ADU exempt from FAR/coverage/min-lot-size |
| Owner occupancy | - | Removed in South Gate via Ord. 2025-01-CC (aligns with state law) |
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.
South Gate FAQ
Can South Gate require me to replace parking when I convert my garage to an ADU?
No. Under Cal. Gov. Code §65852.2, South Gate cannot require replacement off-street parking when a garage converted to an ADU previously satisfied the dwelling's required parking. State law preempts any local replacement-parking rule for ADU conversions.
How long does South Gate have to approve a garage-conversion ADU?
Cal. Gov. Code §65852.2 requires ministerial approval within 60 days of a complete application. South Gate cannot impose discretionary review, public hearings, or owner-occupancy requirements for new applications. SGMC Ch. 11.43 was updated via Ord. 2025-01-CC to align with these state mandates.
Compare other topics
See how El Monte and South Gate compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool