City Guide · Verified 2026
Shed Installation Permits in Joliet
Local Rule
City of Joliet Building & Inspectional Services Division; City of Joliet Sheds permit guidance
Joliet requires sheds greater than 120 square feet to meet building code standards for a garage, including being built on a concrete slab, per the city's own guidance; sheds at or above 120 square feet effectively require the same building permit process as a garage. Applications require an accurate plat of survey showing the proposed structure's placement, a completed Shed Permit Application, a Residential Accessory Structure Form, measurements, structural drawings, and a cost estimate. If a contractor performs the work, the contractor must pull the permit per Section 8-36 of the City Code. Additional visibility requirements apply at intersecting streets, alleys, and driveways.
Source · Verified September 2026
Joliet Building Department
Office: City of Joliet Community Development Department, Building & Inspectional Services Division
Address: 150 W. Jefferson St., Joliet, IL 60432
Phone: (815) 724-4050
Hours and procedures can change — call ahead to confirm.
How This Compares to Will County
Joliet's own rule is shown above (No permit under 120 sqft). Here is the separate rule that applies at the county level, for context:
Will County Land Use Department, Building Division
Will County exempts one-story detached sheds 200 sq ft or less (no utilities, on grade) from a building permit. Distinctively, the county's own code sets a different threshold for a separate purpose: a truss diagram does not need to be signed and sealed by a registered architect or engineer only if the truss width is 14 ft or less between supports AND the building is under 300 sq ft, a second, independent size threshold stacked within the same county code for structural sign-off purposes.
Nearby Cities with Verified Rules
Other cities near Joliet with a confirmed shed installation rule:
FAQs
Which department handles Shed Installation permits in Joliet?
City of Joliet Building & Inspectional Services Division; City of Joliet Sheds permit guidance handles Shed Installation permits in Joliet.
Is Joliet different from Will County on Shed Installation?
Yes. Joliet's rule is "No permit under 120 sqft", while Will County in general is "Depends on project scope". See the full breakdown of each below.
Building It Yourself? Here's What You'll Need
Popular tools and materials homeowners use for a shed installation project:
As an Amazon Associate, we earn from qualifying purchases.