Welcome to Muscatine County's Building Department Homepage. Muscatine County has adopted the 2015 Version of the International Residential Code (IRC) This comprehensive code compiles all building, plumbing, mechanical, fuel gas, & electrical for non-commercial one & two family dwellings in one convenient code.  Hard or Soft copies of the code can be purchased through the International Code Council, the Building & Auditor's office also have hard copies on hand for viewing.  Along with the construction requirements set forth in the IRC, all construction within the county must comply with Muscatine County's Code of Ordinances, located here.