4 county-level rules, plus city-specific rules for 6 cities in Cook County, Illinois.
Verified from official government sources
In unincorporated Cook County, a permit is required for all new sheds and detached storage structures, including prefabricated units, above certain size thresholds. Sheds over 144 square feet require electrical service. All sheds must comply with zoning setbacks and lot coverage limits.
Cook County ePermit — Shed/Detached Garage
Shed/Detached Garage — A permit is required for all new sheds/detached garages. This also includes prefabricated or modular sheds or outdoor storage structures above 4'-0". When repairing or replacing an existing non-conforming structure, a variance will be needed to bring it into compliance with Cook County building codes and Zoning Ordinance. A shed or detached garage larger than 144 square f...
Fence permits are required in unincorporated Cook County for most fence installations. The Cook County Department of Building and Zoning reviews fence applications for compliance with height limits, setback requirements, material standards, and the zoning ordinance.
Cook County ePermit — Fence (Cook County Zoning Ordinance definition)
Fence — A "fence" as per the Cook County Zoning Ordinance, is a structure which is a barrier and is used as a boundary, screen, separation, and a means of privacy, protection or confinement and is constructed of wood, plastic, metal, wire mesh, masonry or other similar material.
Decks in unincorporated Cook County generally require building permits. Decks not more than 30 inches above grade may be exempt. Elevated decks, attached decks, and covered patios all require permits. Non-conforming decks being repaired must be brought into compliance with current codes.
Cook County Department of Building and Zoning
The Department of Building and Zoning's mission is to promote the health, safety and welfare of all constituents throughout unincorporated Cook County. [...] The Department's work involves reviewing plans and issuing permits for new structures and renovations and additions to existing ones, inspecting properties to ensure code compliance, issuing certificates of occupancy, and certifying the zo...
Most renovation work in unincorporated Cook County requires building permits. Permits are needed for structural modifications, electrical, plumbing, mechanical work, and changes to building systems. Cosmetic work like painting and flooring does not require permits.
Cook County ePermit System — Permit Required
Prior to any construction a Permit is required. Electronic Permits are available on specific projects. [...] Please note that all permit requirements must be met in order to complete an application. Please review the official circular of the desired permit for more details. If the scope of work requires a combination of two or more from this list of permits please proceed by submitting your per...
6 cities in Cook County have their own permit requirements rules. Each link goes to that city's dedicated page with code citations.
4 verified rules • Deck & Patio Permits, Fence Permits
3 verified rules • Deck & Patio Permits, Fence Permits
4 verified rules • Deck & Patio Permits, Fence Permits
4 verified rules • Deck & Patio Permits, Fence Permits
4 verified rules • Deck & Patio Permits, Fence Permits
4 verified rules • Deck & Patio Permits, Fence Permits
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