WI AB1047

Waukesha County shoreland zoning ordinances must establish setbacks for new principal structures based on the average setback of existing nearby structures, rather than the permissive "may establish" standard that applies to other counties

Expands the distance threshold in Waukesha County from 200 feet to 250 feet when measuring proximity to existing structures for calculating average setbacks

Removes the requirement in Waukesha County that existing structures must be on adjacent lots—structures on any nearby lots within 250 feet qualify

Existing structures must still be located more than 75 feet from the ordinary high-water mark for the average setback calculation to apply

The setback rules do not apply if compliance would prevent construction on the parcel entirely