General Instructions

Each Permit will require the applicant to complete required information fields and upload copies of plans and other required documentation. The links below will identify the requirements. Please ensure you have all the required information and documents ready to upload prior to beginning the online application process. Applications that are submitted without the required documentation may delay the review process or cause the application to be rejected.

Application Instructions

Prior to submitting the application via our online portal, it is highly recommended that you first download the corresponding PDF Application and/or Checklist/Instructions.  These reference documents provide the information needed to prepare relevant documentation prior to successful online submittal.  The PDF Application is for reference only.

To select a permit application, use the search box below.  The system will filter permit types as you scroll.   You can search by permit type or permit use.  Permit use will list various permits under each type.   You may also scroll through the list.  After ensuring you have all the required information for upload, click the "Apply Online" link for the required permit.

Effective Codes

Following is a list of Codes and Ordinances currently in effect for Jefferson County:

• Building Code Local Amendments - Chapter 500
• Dangerous Building Order - Section 500.320
• Flood Damage Prevention Ordinance - Chapter 405
• On-Site Sewage Treatment Code - Chapter 705
• Utilities - Chapter 700

Adopted Codes

The following Codes have been adopted by Jefferson County:

• International Building Code 2015
• International Energy Conservation Code 2015
• International Fire Code 2015
• International Fuel Gas Code 2015
• International Mechanical Code 2015
• International Plumbing Code 2015
• International Residential Code 2015
• International Swimming Pool and Spa Code 2015
• National Electric Code 2014/Jefferson County Electrical Code 2017

**Solid Waste - When applying for the Solid Waste Permit:

• Physical Site outside of Jefferson County, MO, please select parcel as “Solid Waste Jefferson County MO"
• Physical Site within Jefferson County, MO, use physical site address

**Utility ROW/Excavation Permit**

•     When applying for the Utility ROW/Excavation Permit, please type “Utility ROW/Excavation" in the Parcel Number field.

Search Permits and Apply Online