Missouri City, TX Accessory Structures: Tiny Homes (2026)

Missouri City's Zoning Ordinance is codified at Appendix A of the Code of Ordinances and was originally adopted in 1981. Single-family residential districts limit each lot to one principal dwelling unit and do not list detached accessory dwelling units, tiny homes on foundations, or tiny homes on wheels as a permitted accessory use. Detached accessory structures are regulated for setbacks, height, and lot coverage but cannot contain a separate full dwelling unit with cooking, sleeping, and sanitation facilities in those single-family districts. Any structure used as a dwelling must comply with the International Residential Code adopted under Chapter 14, Article II of the Code, which sets minimum room sizes, ceiling heights, egress, smoke alarms, and energy standards. Tiny homes on wheels are treated as recreational vehicles and are not allowed as permanent residences in residential districts. Manufactured homes are restricted to specific districts under Appendix A. The Zoning Quick Reference Guide summarizes minimum lot sizes and setbacks for each district, and master-planned community deed restrictions across Sienna, Riverstone, and Quail Valley typically prohibit second units regardless of city zoning.