In unincorporated McHenry County, residential and agricultural principal buildings generally need a 30-foot street setback, a 10-foot interior side setback, and a 20-30 foot rear setback (Table 16.36-1). Detached accessory structures must sit at least 10 feet from any lot line.
Setbacks for unincorporated land are set by UDO Table 16.36-1 (§ 16.36.040). In agricultural (A-1/A-2) and estate/residential (E and R) districts, principal buildings typically require a 30-foot minimum street setback (A-1/A-2/E districts) or 20 feet (R-1/R-2/R-3), a 10-foot minimum interior side setback, and a 20-30 foot rear setback depending on district. Corner-side setbacks are larger. Separately, § 16.56.050A.1.d requires accessory structures to be at least ten feet from any lot line, with reduced setbacks in the Legacy Neighborhood Overlay and waterfront lots. Cities like Crystal Lake and Woodstock apply their own district setback tables; confirm your jurisdiction and zoning district.
Building within a required setback is a zoning violation; the county may require a variation from the Zoning Board of Appeals, relocation, or removal, and can withhold occupancy until corrected.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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Crystal Lake collects yard waste and food-scrap compost weekly at the curb from April 1 through November 30. Leaves and grass must go in biodegradable paper ...
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Crystal Lake and McHenry County have no ordinance specifically banning or approving residential artificial turf. Installations must still meet Unified Develo...
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Illinois' Homeowners' Native Landscaping Act bars community associations from banning native-species plantings that are kept free of weeds and don't encroach...
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Neither Crystal Lake nor McHenry County prohibits residential rain barrels or rainwater collection, and Illinois has no statewide ban. The McHenry County Sto...
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Crystal Lake uses a color-coded water-conservation system. During a declared 'Yellow' condition, odd-numbered addresses water on odd dates and even addresses...
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Crystal Lake Chapter 526 lists noxious weeds - burdock, ragweed, thistle, poison ivy, wild mustard and others - plus any unmanaged vegetation as nuisance gre...
See how McHenry County's setback rules rules stack up against other locations.
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