St. Louis Region
Franklin County Planning and Zoning handles more than building permits
Franklin County Planning and Zoning regulates unincorporated land divisions, lot-line adjustments, zoning, addressing, road naming, and floodplain administration.
Outside Franklin County’s cities, land questions often reach Planning and Zoning before they ever look like a building permit. The department handles unincorporated land divisions, lot-line adjustments, zoning districts, address assignments, road naming, and floodplain administration.
That means a rural property errand can start there even when nobody is pouring a foundation yet. Splitting a tract, combining parcels, naming a road, getting an address, checking a conditional use, asking for a variance, dealing with zoning enforcement, or building in a floodplain all point to the land-use side first.
The location still drives the route. Land inside a municipality may have city steps, and some projects may also need State of Missouri permits. Once the address is clearly in unincorporated Franklin County, Planning and Zoning is the place to sort the land layer; building-code permits and inspections are a separate Building Department question.
References
Where this fits: this note belongs to Franklin County. See every local note for the county on its page.