Community Development

Welcome! Before You Visit Our Offices…

  • View a list of online services for our department and others you can access from your home or office.
  • If you need to visit our offices in the County Administration Building in person, please note:
    • You will need to check in at a QLess electronic kiosk in the first floor lobby of the Administration Building to join a virtual queue for our office to receive services. QLess also is accessible on a computer using a web browser or mobile device through the free QLess app. After checking in, you will be directed to a service window or a staff member will meet you in the lobby for services.
    • To access our office on the 4th floor, visitors must check in at the Security Desk to receive a visitor badge, and be accompanied by a staff member.

For further questions, call our department at 636-949-7346. Thank you.

About Us 

The Community Development Department is comprised of three divisions: Building and Code Enforcement, Development Review, and Planning and Zoning. The divisions provide services relating to permitting and inspecting new construction, community planning, zoning, subdivision matters, code enforcement inspections, and review and approval of development improvement plans.

Citizenserve Citizen Access Portal

Apply for permits and contractor licenses, submit plans, file a property maintenance and/or code enforcement complaint, and more through the Citizenserve Online Portal. Enjoy the convenience of handling these tasks online from your home or business.

Master Plan 2030 Cover

Master Plan Goes Digital!

We all know St. Charles County is one of the fastest growing counties in the state, but do you know what’s ahead for our future?

Find out today through St. Charles County’s interactive online Master Plan - Envision 2030.


Code Enforcement

July 27, 2022

Click here for Community Resources


Inspectors with the St. Charles County Department of Community Development today began systematic assessments of homes and businesses in unincorporated areas of the county damaged by this week’s torrential rain and flooding. Using information from the National Weather Service, staff are inspecting the exterior of structures in flooded areas and, once exterior damage is identified as likely to have resulted in damage to the interior of the structure, residents will be notified about the proper procedures for obtaining interior inspections and permits for repair work. If you have questions about inspections, permits or debris not covered by insurance, call one of the appropriate numbers listed below.

  • Unincorporated St. Charles County: 636-949-1898
  • St. Peters:  636-477-6600
  • St. Charles City:  636-949-3222  
  • O’Fallon: 636-240-2000
  • Lake Saint Louis: 636-625-7982
  • Wentzville: 636-639-2154


Notice of Funding Availability

The Domestic Violence Board of St. Charles County is accepting applications for funding from the County’s 2023 Domestic Violence Board funds. Non-profit agencies may apply for these funds to provide shelter and services to victims of domestic violence in St. Charles County. Application deadline is October 1, 2022. The agencies can apply via email or by mail. Please contact Jared Young - for more information. To mail applications, send them to:

St. Charles County Planning & Zoning Division
ATTN: Jared Young
201 North Second Street, Suite 410
St. Charles, MO 63301

Domestic Violence Application and Information