A building permit is required to ensure that the project you are constructing conforms to the minimum standards of the Chicago Building Code. These standards are intended to protect the integrity of the buildings, the welfare of the public and your safety.
There are a series of repair permits that do not require a Building Permit. See list of projects that do not require Building Permits.
For small and simple home and building improvement projects, including replace and repair projects that do not require architectural plans, you may use the Easy Permit Process.
If you are a Residential Home Owner and are replacing elements of the building you may obtain a permit through the Home Owner Assistance Program.
For larger and more complex construction and renovation, applicants use the Developer Services process.
A comprehensive list of building permit applications is available on our website.
Some permit fees are fixed and some require calculation using the building permit fee calculator. You may find this information at Calculate the Cost of a Permit.
121 N LaSalle St, City Hall, Room 900
Chicago, Illinois 60602