We know that behind every building permit is a homeowner or business owner’s dream, an investment in the community, and the creation of jobs. Our building permit processes help to ensure that building projects in Chicago are designed and built to be safe for occupants, first responders, and the public.

The Department of Buildings is tasked with accepting applications and issuing permits for most types of construction, demolition, and repair work. In carrying out this responsibility, we are committed to being a partner, not an obstacle, for residents and business owners who are investing in Chicago.

In this Guide to Building Permits you will find information on different types of permits and a Step by Step Tool (coming late 2024) to walk you through the permit process for different project types. We hope this guide will help you to better understand the processes and requirements for getting the permits you need and completing your project efficiently, legally, and safely.