Tiny Homes: Castaic vs El Monte
How do tiny homes rules compare between Castaic, CA and El Monte, CA?
Castaic and El Monte have similar restriction levels.
Castaic, CA
Los Angeles County
Tiny homes on permanent foundations are treated as ADUs under CA Gov Code 65852.2 and LA County's ADU ordinance in unincorporated areas. Tiny homes on wheels are not recognized as permanent dwellings. LA County allows ADUs up to 1,200 sq ft detached with 4 ft side/rear setbacks.
View full Castaic rules →El Monte, CA
Los Angeles County
Tiny homes on permanent foundations in El Monte are regulated as ADUs under CA Gov Code 65852.2. Tiny homes on wheels are treated as RVs and cannot be used as dwellings. ADU height up to 16 ft (25 ft in some zones).
View full El Monte rules →Key Facts Comparison
| Fact | Castaic | El Monte |
|---|---|---|
| On Foundation | Treated as ADU, permitted | Regulated as ADU |
| On Wheels | Not allowed as permanent dwelling | Treated as RV, not dwelling |
| Max ADU Size | 1,200 sq ft detached | - |
| State Law | CA Gov Code 65852.2 | CA Gov Code 65852.2 |
| Height | - | 16-25 ft depending on zone |
Highlighted rows indicate differences between cities.
Castaic FAQ
Can I put a tiny home in my backyard in unincorporated LA County?
Yes, if it's on a permanent foundation and meets ADU requirements. Detached units up to 1,200 sq ft are allowed with 4-foot setbacks. You need a building permit from LA County Building & Safety.
Can I live in a tiny home on wheels in LA County?
No. Tiny homes on wheels are classified as recreational vehicles and cannot be used as permanent dwellings. They can be parked on your property subject to RV parking rules but cannot be connected to utilities as a residence.
What permits do I need for a tiny home ADU?
You need a building permit from LA County Building & Safety. Under state law, ADU permits must be approved ministerially (no discretionary review) within 60 days if plans comply with standards. Contact (626) 458-3171.
El Monte FAQ
Can I put a tiny home in my backyard?
Possibly under El Monte ADU rules if on a permanent foundation. Tiny homes on wheels face stricter zoning limitations.
What is the minimum house size?
El Monte typically requires 400 to 800+ square feet for a primary dwelling. ADU rules may allow smaller secondary units.
Compare other topics
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