ADU rules for Johnsburg
Accessory Dwelling Unit (ADU) Rules for Johnsburg, IL
Is your property eligible for an ADU?
# of Properties
1
Zoning districts
31
Zoning Districts:
3,794 parcels · 31 districts
R1
43%(1,633)
R4-PD
13%(512)
E1-PD
13%(505)
E1
12%(462)
Other
18%(682)
ADU Rules
What can you build in Johnsburg, IL?
Johnsburg, IL follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Not addressed in the local bylaw
- –Detached ADU: Not addressed in the local bylaw
Owner Occupancy
- –No owner-occupancy requirement for ADUs.
Parking
- –2 spaces/ADU; no max; may be on the same lot or another lot within 500 ft in the same or a less restrictive district; EV charging stalls may count toward required spaces up to 5% of the requirement.
Rental Restrictions
- –Detached ADU (Guest House) cannot be rented or used as a separate dwelling unit. Short-term rentals are prohibited in all residential districts; internal/attached ADUs cannot be rented as short-term rentals.
What's allowed on your lot?
These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.
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ADU rules in other Illinois municipalities
Rules change at the town line. Check the municipality your property is actually in.
McHenry County