Building permits are required for all commercial/industrial construction projects. For new commercial or industrial construction see the checklists below. Please be aware that inspections by Building staff are conducted Monday through Friday only. 

New Commercial/Industrial Checklist Packet
New Commercial/Industrial Checklist Construction (Foundation Only) 
New Commercial/Industrial Checklist Construction (Shell Only)
Fire Alarm/Fire Sprinkler Checklist - this information is currently being updated. For more details, please call the Building Department, 630-837-0800.

Permit Applications:

New Construction Building Permit Application - please use this form for new commercial/industrial construction on a previously undeveloped site.
Building Improvement Permit Application - please use this form for buildouts, remodeling and repair projects.

Additional Information

Architect's Certification
Permit Fees