Unincorporated Collin County Has No General Zoning

A rural Collin County lot may have no zoning map at all. Outside city limits, the county has no general zoning. It does regulate sexually oriented businesses, salvage and junk yards, and animal slaughter work. Zoning and permits are different. A project that disturbs ground or adds a footprint still needs a county Development Permit. A new structure, addition, pool, or fence can count.

ETJ is land outside a city where that city may apply subdivision rules. The land stays in the county's permit area. Before you divide or build on ETJ land, ask the city to sign the county's ETJ Verification form. County flood, septic, and some road reviews may still apply.