Building Permit Information

If you are considering improvements to your home or property, you should know that virtually every enhancement requires a building permit. Permits are required for any improvements to your home that involve plumbing, structural, electric, or mechanical work. Specific building permits are required for projects including new installation or replacement of the following:

Applying for Permits

Permits can be applied for at the City Hall offices on the lower level or e-mailed to Applications are available online or you can stop by City Hall. Additional information is available by calling 630-553-8545.

Plat Survey Requirement

In most cases a copy of a recent plat of survey will be required. This survey should accurately show all existing buildings and improvements and the proposed location shown on the survey where you intend to build, including the dimensions and distances to all lot lines. The property’s Permanent Property Identification Number (PIN) is required on all Applications for Permits pursuant to State Law, 65 ILCS 5/11-39-1 and 65 ILCS 5/11-39-2.

Permit Review

Permits generally take 7-14 days to complete a review. If changes are required, this process could take longer.

Permit Length

A permit will expire if the work is not started within 6 months of the date of issuance. A permit will also expire if work is suspended or abandoned for a period of 6 months or if it has been longer than 6 months since the last inspection. The maximum length of a permit is 2 years.


It is the responsibility of the property owner to make sure that all necessary inspections are performed. Inspections must be requested at least 1 working day prior to the day the inspection is to take place. Inspections can be scheduled over the phone or via e-mail, please have the following information available:
  • Address of Inspection
  • Date Requested for Inspection
  • Lot Number and Subdivision
  • Permit Number
  • Type of Inspection
Approved plans and permit card must be onsite and available for the inspector.