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Building Division

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Permit Pick UP Notification - Permits applied for PRIOR TO March 23, 2020

Building Division permits applied for prior to March 23, 2020, shall make payment using the City of Clayton Credit Card Payment Authorization Form.

Please submit the completed form, along with a copy of your Permit Pick UP Notification to  Incomplete forms and partial payments will not be accepted. 

 Once your payment has been processed, your permit documentation and payment receipt will be available for pick-up, in a designated location, for 10 business days.  If you have not secured your permit within the time limit provided, you must make alternate arrangements via email

Please visit for directions to the designated location of the pick-up area at Clayton City Hall.

*  Please note:  By submitting payment, you are acknowledging that there may be noted conditions contained in your permit documents and those conditions will be complied with as part of the approved construction for the associated permit.

Permits applied for AFTER March 23, 2020

Building Division permits applied for after  March 23, 2020, shall made via the City of Clayton Citizenserve Permitting Portal.

Applications may be completed online and will be directly sent to the Building Division. If your permit includes drawings, the .pdf file(s) should be uploaded as prompted when completing the application. The maximum file size for a single file is 25 MB.

If your drawings are drawn by hand, they will need to be scanned to a .pdf file. Area print shops can assist you with that ability.

Once the application has been submitted, it will be reviewed by our staff to determine that all required form fields were correctly completed and all materials provided. Once those items have been confirmed, the applicant will receive a notification of the initial application fee to be paid. All fees may be made via the portal. Upon payment, your review time will commence.

Inspections Notice (March 24, 2020)

The City of Clayton Planning & Development Department is presently scheduling AM inspections only. Due to COVID-19 public health concerns, it is advised that areas of inspection be primarily cleared of all groups of individuals. Socially distancing with a minimum of 6 feet clearance will be required. Where a condition exists that the Inspector feels that their health or safety may be compromised, it may be necessary, in the determination of the Inspector, to perform the requested inspection at a later date after the concerns have been addressed.

Commercial Occupancies are being scheduled only at the discretion of the Clayton Fire Marshall and the Clayton Building Division. Should the project area be occupied without an inspection and approval, it will be at the occupants own risk. An Occupancy Inspection shall be scheduled at the applicants earliest convenience, upon resumption of full inspection services by the Clayton Planning & Development Department.

Requests for video inspections will be considered for certain inspections as conditions allow. Please make arrangements with the inspector prior to your scheduled inspection. For questions or to schedule your inspection, please contact us at

For permits applied for through the Clayton Citizenserve Portal, please schedule your inspections online by visiting


Code Questions/Clarifications – For general building, plumbing and mechanical code questions, please submit your question to and we will respond as soon as possible. We will make every effort to respond within 24 hours of receipt of your question, however response times are subject to current project volume.

Over the counter permits - the Building Division is no longer processing same day, over the counter permits. We currently offer a three business day review times from the time of application, for permits that do not require plan review ("No Plan Review"), subject to current project volume. We appreciate your understanding and encourage you to adjust your project schedules accordingly.

Inspections - Please email the Building Division at to schedule your inspection. Inspection requests received prior to 4 p.m. will be eligible for next day inspections.  Inspection requests received after 4 p.m. will be placed on the schedule for the subsequent business day.  If you do not have email access, please call 314-290-8458 to scheduled an inspection.

You must provide the following information:
Type of Inspection
Permit Number
Project Address
Contact Name and contact phone number
Date of desired inspection and time (am or pm)

Effective January 1, 2016, the City of Clayton has adopted the following codes:

  • Part I, the 2015 International Building Code
  • Part II, the 2015 International Mechanical Code
  • Part III, the 2015 International Plumbing Code
  • Part IV, the 2015 International Residential Code
  • Part V, the 2015 International Fuel Gas Code
  • Part VI, the 2015 International Energy Conservation Code
  • Part VII, the 2015 International Existing Building Code

Included are all appendices to each code.

The 2014 National Electric Code has also been adopted as part of the St. Louis County amendments.

In addition to the actual Code, amendments are contained in the Ordinance that are designed to take into consideration circumstances and standards which are specific to Clayton.

To purchase the code (without local amendments), please visit the International Code Council's web site,

ICC also makes model I-Codes and standards available free online as a service to the public[]=2015&page=1



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