Most residential fences under 6 feet do not need a permit in Iowa City, but zoning rules for height, setbacks, and corner lot visibility still apply.
In Iowa City, you need a building permit for fences over 6 feet tall, electric fences, and barbed wire fences. Standard privacy fences at 6 feet or under in your side or rear yard typically do not require a permit. This makes Iowa City a bit more relaxed than some other cities in Iowa.
Permits are handled by the city's Neighborhood and Development Services department, specifically the Housing and Inspection Services division. You can call them at 319-356-5120 with questions about whether your project needs a permit. The permit type you need is called a Residential Building-Accessory Structure permit, and you can apply online through the city's self-service permitting software at icgov.org/permitinfo.
Even if your fence does not require a permit, it still has to meet all the zoning rules in the city code. Those rules cover height limits, setbacks from property lines, and visibility at corners. The city can enforce zoning violations whether or not you pulled a permit.
Front yard fences in residential zones are limited to 4 feet in height. This rule also applies if your property is within 50 feet of a residential zone. The front yard is the area between your house and the street.
If you have a double frontage lot or a reversed corner lot along an expressway or arterial street, the height limit goes up to 6 feet for that second frontage. Side and rear yard fences can go up to 6 feet without a permit and up to 8 feet total if you are willing to get a permit and meet the code requirement that the fence be no more than 10 percent solid material above 8 feet.
All fences in Iowa City must be set back at least 2 feet from any street or alley right-of-way line. You cannot build right up to the edge of the public right-of-way. This is a firm rule and applies to every fence.
Corner lots have additional restrictions for visibility and safety. Fences over 2 feet in height cannot sit inside the intersection visibility triangle. The city does allow certain open-style fences like split rail or wrought iron within the triangle as long as they are less than 20 percent solid and kept free of plantings or materials over 2 feet tall. This rule is enforced to keep drivers and pedestrians safe at intersections.
Iowa City sits along the Iowa River, and areas near the river are mapped as floodplain. The river crested at 31.53 feet during the major flood in June 2008, causing over 270 million dollars in damage across Iowa City and Coralville. Since then the city has invested heavily in flood mitigation.
If your property is in a mapped flood hazard area, you may need a separate floodplain development permit before building a fence or any other structure. You can check whether your property is in a floodplain by looking at the FEMA Flood Insurance Rate Maps on the city or county website. Properties in Zone A are in the 100-year floodplain.
It is a good idea to confirm current rules before you start your project. Zoning codes do get updated, and staff at Housing and Inspection Services can tell you exactly what applies to your property. Reach them at 319-356-5120 or by email at cmarx@iowa-city.org.
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