McHenry County, IL Parking Rules: Commercial & Oversized Vehicles (2026)
Key Facts
- Crystal Lake size trigger
- Over 25 ft or 11 ft
- Required location
- Interior side or rear yard
- Setback from lines
- At least 5 feet
- Unincorporated screening
- 6-foot minimum
- On-road oversized loads
- Permit required (625 ILCS 5)
Summary
Large RVs and oversized vehicles face storage limits. In Crystal Lake, a recreational vehicle over 25 feet long or 11 feet tall must be stored in a side or rear yard, at least five feet from property lines.
A recreational vehicle that is larger than 25 feet in length and/or 11 feet in height can be stored in the interior side yards or rear yard as long as it is not located within five feet of the side or rear property lines.
Full Breakdown
Oversized recreational and utility vehicles are limited by municipal zoning and the county UDO. In Crystal Lake, a recreational vehicle larger than 25 feet in length and/or 11 feet in height must be stored in an interior side yard or the rear yard and kept at least five feet from the side or rear property lines. Smaller units may use the driveway. In unincorporated McHenry County, the UDO keeps outdoor storage out of the street yard and requires six-foot screening. On the road, oversized and overweight vehicles need permits and must obey load limits under the Illinois Vehicle Code (625 ILCS 5). Confirm your city's height/length thresholds before storing a large vehicle at home.
Violations & Fines
Storing an oversized vehicle in a prohibited location is a zoning violation subject to daily fines until the vehicle is relocated or properly screened.
Frequently Asked Questions
Where must I store a large RV in Crystal Lake?
Do I need a permit to drive an oversized vehicle on county roads?
Sources & Official References
Other rules in McHenry County
Compare McHenry County to another location·View the Illinois parking rules overview
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