Commercial/ Industrial

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Commercial projects are very important to the City. They provide the citizens of Crystal Lake jobs and other opportunities, and help our community thrive. However, these commercial projects can involve complex features, and require a careful review to make sure that they meet the standards acceptable to the community. The permit process will be less problematic if the City and the applicant are able to Steel Frame Construction

communicate with each other efficiently and quickly. To maintain clear lines of communication between the City and applicants on commercial projects, we request that a primary contact be identified. All communications should go between this individual and Building plans examiner assigned to the project.

It is important to be clear as to the scope of the proposed work. Detailed plans are essential for a timely permit review. Approval from the property owner is needed, either by signing the application itself or by submittal of an owner signed contract for the work.

Please submit the application for permit before you begin your project to avoid any unnecessary delay or fines.

Fire Sprinkler Systems

On June 17, 2008 the City Council adopted new building codes for governing construction in the City. One of the key life safety changes involved with this adoption was an amendment to the 2006 International Building & Fire Code that requires automatic fire sprinkler systems for all new commercial buildings. It is also required for additions and alterations when they are over 5,000 square feet. The Fire Prevention Bureau has additional information on this requirement.

Permits Administered by Other Departments 

Fire Alarm System
Fire Sprinkler System
Kitchen Hood Suppression System
Paint Booth Suppression System 

Mass Grading 

Tree Removal Permit  


All permitted work in the City must be inspected by staff, and each project requires a final inspection. For a list of inspections required for various projects and a description of the procedure for requesting inspections, please see the Inspections page.


Commercial/Industrial Building Permit Application 
Simplified Building Permit Application
New Construction/Addition submittal checklist 
Interior Improvements submittal checklist 
Demolition Submittal Checklist
Contractor List 
Occupancy Application 
Limited Use Permit Application
Building Codes 

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