All St. Louis County offices are open to the public. Currently, the COVID-19 Community Level is high in St. Louis County, which means facemasks are recommended inside St. Louis County buildings (and all indoor public places.)

Fact Sheets

Land use permits are required for most construction on parcels located outside municipalities (cities) and organized townships who administer their own zoning.
Please consult the "Administration of Zoning Township & City" link in Related Topics below if you are in doubt as to whose jurisdiction the zoning for your parcel is under. Click on the links below for information regarding the projects or activities that you will be working on.