DepartmentsGovernmentClick to HomeExplore Johnston
Help Center

Go To Search
Emergency Alerts

Building Code Information
Updates and Provisions
Effective May 1, 2014, the 2012 International Codes for Building, Residential, Plumbing, and Mechanical will be used and enforced on all construction permits submitted and constructed thereafter in the city of Johnston (as well as the National Electric Code 2011 editions). Generally, city staff made very few changes from previous code amendments and requirements; however a published change in the shear wall bracing provisions of chapter 602.10 of the International Residential Code has been changed and will require your design attention. Additionally, please refer to the State of Iowa Energy Code for changes to return air ducting provisions and system sizing.

If you have questions on the above-described action, please contact the city staff by calling 515-727-7778.

Current Rules:

These codes and special provisions can be updated periodically by amendment passed by the Johnston City Council.