Apply for a Business License

Chapter 605 of the Lake Saint Louis Municipal Code regulates licenses for businesses within the City of Lake Saint Louis.

The business licensing period is from July 1st through June 30th annually.

All individuals or companies offering their services for hire and/or engaging in construction activities within the City limits of Lake Saint Louis are required to have 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.

All new businesses physically located within the City limits of Lake Saint Louis need to to contact the Community Development Dept. at 636-625-7936 to verify their use is permitted in the zoning district where they intend to do business. Once verified, complete the steps listed below to obtain a Lake Saint Louis business license.


Step 1 - Register & create a user account by going to and click on “Business Licenses”. Register with your email address, create a password, enter your name & phone # as a new user. . You should receive an email from with a link for you to activate your account registration. Please make sure to remember your login and password as this will be used again in this process and for future renewals as well

Step 2 - Then you will need to click on “Associated Licensees – Add New”, and complete the rest of the required fields, click on “Associate New License”. This step will connect your registered user account with our business license program.

Step 3 - Once processed you will receive an email from City Clerk when your membership association is approved, then you will be able to log back in to “Apply for a license”. Select your license type from the drop down arrow list and complete the rest of the fields. Then click on “Submit License Application”.

Step 4 - Once processed you will receive an email from City Clerk informing you when you can pay the fee online and if any additional documentation is required.

Please note that processing of your online applications will be done during City Hall business hours Monday - Friday. Business License fees are payable by credit/debit card online (step 4 above). If you prefer to pay by check then you can mail or drop off your payment at City Hall, 200 Civic Center Drive, Lake Saint Louis, MO 63367

 Click here for the license fee schedule.

If you have any questions email the City Clerk or call 636-625-1200 (ask to speak with business licensing in the Admin. Dept.)

Business Emergency Contact Form - If you have a new business that is physically located within the City limits of Lake Saint Louis you will need to fill out the Emergency Contact form and email or mail it to the Police Dept. as noted on the bottom of the form.