ADU rules in Springfield, IL — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Springfield regulates accessory dwelling units through zoning. Illinois passed ADU legislation (HB 2373, effective 2024) encouraging ADU development statewide.
Illinois passed HB 2373 (effective 2024) to encourage ADU development by limiting certain municipal restrictions. Springfield regulates accessory dwelling units through local zoning. Home rule cities may implement ADU rules differently than non-home rule cities. Common conditions include maximum size (typically 600 to 800 sq ft), setback requirements, and owner-occupancy provisions. Additional parking may be needed. Building permits required for any habitable structure. HOAs may impose additional restrictions on ADUs.
Unpermitted ADU: building code enforcement. May require demolition or legalization. Occupying unpermitted dwelling: code violation.
Springfield, IL
Springfield prohibits storing abandoned, inoperable, or unregistered vehicles on public streets or visible on private property. Vehicles may be tagged and to...
Springfield, IL
Springfield regulates electric vehicle charging infrastructure for residential and commercial properties. Building codes may require EV-ready parking in new ...
Springfield, IL
Springfield regulates overnight parking on public streets. Many areas restrict parking between certain hours or require permits for overnight street parking.
Springfield, IL
Springfield requires pool barriers meeting safety codes to prevent drowning. Fences must be at least 4 to 5 feet tall with self-closing, self-latching gates.
Springfield, IL
Springfield requires permits for retaining walls above a certain height, typically 4 feet. Engineering review may be required for taller walls.
Springfield, IL
Springfield restricts or prohibits intentional feeding of wildlife including deer, coyotes, and bears. Feeding wildlife creates public safety hazards and nui...
See how Springfield's adu rules rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.