Building Permits & Process

Building Permits

A Building Permit is required to construct, enlarge, repair, alter, repair, move, demolish, or change a building or structure (i.e. new homes, additions, pools, garages, etc.) within the city.  In some cases, more than one type of permit will be needed.  Permit applications can be found online or can be picked up at City Hall.  Please contact our Code Enforcement Department with any questions at (636) 677-7727 x225 or email at

Visit our Building Permit Forms & Applications page for a list of downloadable permit application packets.

Possible Fees

  • Building Permit Fee  
  • Administrative Fee - $40.00Residential; $100.00 Commercial/Industrial
  • Stormwater Fee (if applicable) Minimum fee is $200; cost based on the amount of property being disturbed
  • Road Bond required (if applicable) Minimum bond is $500. This is refundable pending any damage to the City of Byrnes Mill streets or roads.