Tiny home rules in Madison County, AL — covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds — determine where they are legal and how they get permitted.
A tiny house in unincorporated Madison County is a real dwelling only if it is built and inspected to the 2018 IRC, using Appendix Q for homes 400 square feet or less. A park-model RV or shed on wheels is not fit for habitation.
Madison County defines a true tiny house as a building permitted, built onsite to the 2018 International Residential Code, and inspected by the Building Inspections Department; Appendix Q relaxes stair, headroom, loft, and escape-opening rules for homes 400 square feet or less. Anything larger cannot use Appendix Q without the building official's approval. A park-model RV, a converted shed or shipping container, or any structure on wheels does not meet the code for permanent habitation, and the county grants no occupancy without an engineer's conversion and full permits. Septic rules under r. 420-3-1 still apply off sewer.
Placing a tiny house without a building permit is illegal construction. Living in a park-model RV, converted shed, or structure on wheels is prohibited; the county grants no occupancy for it.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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See how Madison County's tiny homes rules stack up against other locations.
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