Yes, most construction activities require a permit. For your own protection and best interest, it is always best to check with the Building Department before beginning any construction, alterations or repair work. Failure to obtain a building permit could result in a fine or an order to stop work. For questions or concerns, please contact our Building Department at 815-937-3575 Monday – Friday 8:00 a.m. – 4:30 p.m. After hours, you may leave a message and a representative will get back with you during normal business hours.