Does my project require a licensed architect or engineer?

For most repair projects and some remodeling projects that are eligible to use the Express Permit Program, documents prepared by a licensed architect or engineer are not required as part of the permit application. Review the answer to What types of work are eligible to use the Express Permit Program? for details.  

For any project that requires a plan-based building permit, you must hire an Illinois-licensed architect or engineer to prepare the plans (construction documents) that will be submitted as part of the permit application. For most projects, you must hire an Illinois-licensed architect or structural engineer. Illinois-licensed professional engineers are only allowed to prepare construction documents for a limited range of projects. The architect or engineer that you select will be responsible for determining the zoning and construction code requirements that apply to your property and project.