Folsom vs Isleton
How do tiny homes rules compare between Folsom, CA and Isleton, CA?
Folsom and Isleton have similar restriction levels.
Folsom, CA
Sacramento County
Tiny homes on foundations in Folsom are regulated as ADUs or primary dwellings under state ADU law. Tiny Homes On Wheels (THOWs) are generally classified as recreational vehicles and cannot be used as permanent dwellings in residential zones. Movable Tiny Houses meeting ANSI 119.5 may qualify as ADUs under AB 68 amendments.
View full Folsom rules →Isleton, CA
Sacramento County
Tiny homes on permanent foundations are regulated as ADUs under Gov Code 65852.2. Tiny homes on wheels (THOW) are regulated as recreational vehicles and cannot be used as permanent dwellings.
View full Isleton rules →Key Facts Comparison
| Fact | Folsom | Isleton |
|---|---|---|
| Foundation Built | Permit as ADU | - |
| THOW | RV — not permanent | RV classification |
| ANSI A119.5 | May qualify if sited | - |
| RV Occupancy | 30-day max residential | - |
| State Law | H&S §18010 + Gov §65852.2 | - |
| Permanent Foundation | - | Treated as ADU |
| Flood Elevation | - | Required for permanent |
| Local Rules | - | No THOW ordinance |
| JADU | - | Possible with authorization |
Highlighted rows indicate differences between cities.
Folsom FAQ
Can I live in a tiny house on wheels in my Folsom backyard?
Not as a permanent residence. THOWs are classified as RVs and can only be occupied up to 30 days per year on a residential lot. For permanent occupancy, build a foundation-based ADU instead.
What's the smallest ADU I can build in Folsom?
There's no strict minimum size in state law, but it must meet habitability code — at minimum a habitable space with bathroom, kitchenette, egress, and utilities. Most permit-approved tiny ADUs are 150-400 sq ft.
Isleton FAQ
Can I live in a tiny house on wheels in Isleton?
Not as a primary residence. THOWs are RVs under state law and cannot serve as permanent dwellings without special local authorization.
What about a permanently placed tiny home?
Those are treated as ADUs under state law and must meet building code and FEMA flood standards.
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