Customers may request information, submit drawings, and purchase building permits On-line​ or at the Development Center. Construction permits are needed for new homes and when existing homes are remodeled or additions are made.Obtaining a building permit prior to construction or installation. Our build-ready plans include full working drawings for building and permits, including all structural detailing. We are a group of highly professional custom home designers capable of house plan drafting services. There are several ways to obtain a Building Permit Submittal Form. We offer permitting and planning services that allow neighborhoods in unincorporated Maricopa County to grow in a safe, balanced way. Call Legacy Design Build Remodeling at 480-970-7590 to learn more about our processes and policies.