Permit Requirements in Des Plaines, IL (2026)
4 verified permit requirements rules for Des Plaines, Illinois, sourced directly from the municipal code and official government pages.
Verified from official government sources
Shed & Outbuilding Permits
Des Plaines requires a building permit for sheds and accessory structures over a specified size threshold (commonly 100 sq ft). Sheds must comply with zoning setbacks (typically 3 feet from side and rear lot lines) and may be limited to one per lot.
Shed Permits in Des Plaines
Some RestrictionsFence Permits
Des Plaines requires a fence permit for new fence installation. Front-yard fences are limited to 4 feet and rear/side fences to 6 feet. Corner lots have additional sight-triangle restrictions.
Fence Permits in Des Plaines
Some RestrictionsDeck & Patio Permits
Decks attached to a home in Des Plaines require a building permit regardless of size. Patios at grade may be permit-exempt below a threshold but still must comply with zoning, lot coverage, and floodplain rules.
Deck and Patio Permits in Des Plaines
Some RestrictionsRenovation Permits
Des Plaines requires building permits for most interior and exterior renovations including additions, kitchen/bath remodels with plumbing or electrical changes, roof replacement, siding, windows, HVAC, and electrical service upgrades. The city follows the International Code Council family of codes.
Renovation Permits in Des Plaines
Heavy RestrictionsLooking for Cook County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Des Plaines city rules.
Permit Requirements in Cook County →