welcome to THE CITY OF LAKE SAINT LOUIS online portal 

Apply, pay fees, check review status and schedule inspections associated with building, sign and rental occupancy permits. You may also file code enforcement concerns all from your computer or mobile device.

Online services to apply for permits, schedule inspections, make payments, etc. are available 24 hours a day, 7 days a week.

Important Login Information:

  • The user accounts for different jurisdictions using Citizenserve are not interconnected. Therefore, if you have an account with a different jurisdiction in the county that does not mean you have an active account on this site. 
  • If you have applied for a permit with the City of Lake Saint Louis since November 2018 it is likely that you already have a user account. You may receive you username by proceeding to the Login Page and clicking on "Forgot Your Username". Once you recover your username you will need to do the same for your password. 
  • If you are a first time user please proceed to the Login Page and click on "Register Now".

Building Permits 

Apply for building permits and rental occupancy permits, check the review status of permit applications, and schedule inspections.

Planning and Zoning Applications

Apply for planning and zoning applications, check the review status of applications, schedule a preapplication meeting.

Code Enforcement Concerns

Have you noticed Municipal Code violations in your neighborhood? If so, you may submit a concern online.  City staff will investigate the information you provide and take the appropriate actions.