Building Permits

Apply for a Building Permit

Apply for permits, submit plans, search for a permit, and more through the Citizenserve Online Portal. Enjoy the convenience of handling these tasks from your home or business.  

Interactive Zoning Map

Schedule a Building Inspection

To schedule an inspection you can submit your request using the Citizenserve Online Portal or by emailing it to the building inspection email.  Please include the permit number, project address & requested date and time frame of AM (9-12) or PM (1-4) when requesting an inspection via email.

All Contractors Must Have a Business License

All individuals or companies offering their services for hire and/or engaging in construction activities within the corporate limits of the City of Lake Saint Louis are required by Lake Saint Louis Municipal Code to obtain a City Business License prior to engaging in construction activities and to maintain a Business License throughout the time in which they engage in construction activities. Additional information on applying for a business license  in Lake Saint Louis can be found here. 

Additional Information

  1. Basement Finish (PDF)
  2. Cold Weather Concrete Placement Policy (PDF)
  3. Commercial Building and Development Requirements for Lake Saint Louis.pdf (PDF)
  4. Deck Guide (PDF)
  5. Demo Policy (PDF)
  6. Drainage Policy (PDF)
  7. Pool Requirement Checklist (PDF)
  8. Rental Inspection Checklist (PDF)
  9. Residential Fence Map (PDF)
  10. Roofing Code (PDF)

Blasting Permits

On July 1, 2019 the Board of Aldermen approved an agreement with St. Charles County for services related to blasting. Contact St. Charles County for questions regarding blasting permits.