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This 2014-2015 document is intended for reference only.Please contact Dane County Zoning Division(608)266-4266 for specific ordinance language. Quick Reference Guideline for Accessory Buildings To contact a Zoning Inspector about your specific situation call(608)266-4266 • A Zoning Permit is required for accessory building larger than 120 square feet in size. Zoning Permits are not required for accessory buildings equal to or less than 120 square feet on non-permanent foundations, provided they meet setback, height, and lot coverage requirements. • Zoning Permit fees may be exempt for buildings for large farm operations on farms of 35 acres or larger. • An Agricultural Accessory Building is defined as a building used exclusively in a farm operation.An agricultural activity must be clearly present on the property. • A principal building (single-family dwelling) must exist or be under construction prior to the construction of an accessory building. Check specific zoning districts for exceptions for buildings as part of a farm operation. • Accessory buildings may not be used for living spaces. No guesthouses or apartments are allowed. • Plumbing fixtures are prohibited in accessory buildings. (Except for specific agricultural building in the A-2 Zoning District with a Conditional Use Permit.) • Each zoning district has size and height restrictions for accessory buildings. See below. • Accessory buildings must meet required setbacks from roads, Shoreland District, Wetlands, and Floodplain. To prevent a potential violation, check with Zoning staff to see if these features are present on or near your lot. • A Dane County Zoning Permit must be issued before you apply for a Town building permit. Even though some Towns may not require a building permit for an accessory building, the Dane County Zoning Permit is still required. l f 3-'� ,sr ' Y . • Accessory buildings may not be used for business purposes, living purposes, or housing livestock. • A residence (principal building) must be built or under construction before an accessory building is allowed. • The footprint area of all accessory buildings in total may not exceed 100%of the footprint area of the residence. • The residence, plus all accessory buildings, may cover no more than 30%to 35%of the lot area(35%-40%on corner lots). See specific zoning district factsheet. • The maximum height of an accessory building is 12 feet(measured from ground to middle of roof). • Setbacks from side and rear lot lines: o Minimum 10-foot side and rear yard setbacks apply for accessory buildings over 120 square feet; may be reduced to 4 feet if located behind residence and at least 10 feet away from residence. o Minimum 4-foot side and rear yard setbacks apply for accessory buildings of 120 square feet or less. r. ? s, :794Irrfr76Nk • Accessory buildings may be used for residential storage or agricultural purposes. • A residence(principal building) must be built or under construction before an accessory building is allowed. • The house together with all accessory buildings may not cover more than 10%of the lot area. • The maximum height of an accessory building is 35 feet(measured from ground to middle of roof). • Setbacks from side and rear lot lines for accessory buildings that do not house livestock: o Minimum 10-foot side and rear yard setbacks apply for accessory buildings over 120 square feet, may be reduced to 4 feet if located behind residence and at least 10 feet away from residence. o Minimum 4-foot side and rear yard setbacks apply for accessory buildings of 120 square feet or less. • Setbacks from side and rear lot lines for accessory buildings with livestock: o Minimum 50 feet from side and rear lot lines o Minimum 100 feet if adjacent to a Residence(R-) district. H:\Zoning\Zoning district factsheets\2014-15 Updated\Docx\Accessory_Structures_2014-15.docxpd2O 14/15 Revised 03/27/2014PAGE 1of 2