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.  

Apply for Development Review Board Approval

To submit an application for Development Review Board (DRB) please complete the application for a Commercial Building Permit through the Citizenserve Online Portal.  Please review the DRB Submission Requirements (PDF) prior to submission.

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 request 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.

Additional Information

  1. Notice to All General Contractors and Subcontractors Doing Business in the City of Lake Saint Louis (PDF)
  2. Contractor Types and Construction Activities Requiring a Business License (PDF)
  3. DRB Submission Requirements (PDF)
  4. Commercial Building and Development Requirements for Lake Saint Louis.pdf (PDF)
  5. Deck Guide (PDF)
  6. Residential Fence Map (PDF)
  7. Pool Requirement Checklist (PDF)
  8. Rental Inspection Checklist (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.