Saint Paul, MN Accessory Structures: Tiny Homes (2026)

Tiny homes in Saint Paul are regulated based on their construction type. Permanent tiny homes built on a foundation may qualify as ADUs under Saint Paul Legislative Code Ch. 66 and must meet all applicable ADU size, setback, and zoning standards. They must comply with the Minnesota State Building Code including minimum habitable room sizes, ceiling heights, egress requirements, and utility connections. Tiny homes on wheels (THOWs) are generally classified as recreational vehicles under city code and cannot be used as permanent dwellings in residential zones. RVs may be stored on residential property subject to parking and storage regulations but are not approved for habitation. Minnesota adopted Appendix Q of the IRC in the state building code, which provides specific standards for tiny houses (400 sq ft or less) including reduced stairway widths and ceiling heights. A building permit and certificate of occupancy are required for any tiny home intended for permanent habitation. Saint Paul has explored tiny home villages for transitional housing through special zoning approvals.