Accessory Structures in Greenfield, WI (2026)
2 verified accessory structures rules for Greenfield, Wisconsin, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Greenfield's Zoning Code (Chapter 21 of the Municipal Code) does not include a dedicated accessory dwelling unit (ADU) ordinance. The code's residential districts (R-1, R-2, R-2a, R-3, R-3a, R-4a, R-4b, MFR-1, MFR-2, MFR-3) regulate one-family, two-family, and multifamily dwellings, and the term 'accessory dwelling unit' does not appear as a permitted use in the Part 4 district regulations. Construction of a separate, self-contained second residence on a single-family lot generally requires either two-family district zoning (R-2/R-2a) or a rezoning/variance through the Plan Commission and Common Council. The City's zoning authority comes from Wis. Stat. Sec. 62.23.
Accessory Dwelling Unit Rules (Greenfield, WI)
Heavy RestrictionsShed Rules
Sheds in Greenfield are 'accessory buildings (except garages)' under the Zoning Code (Chapter 21) and the Inspection Services Accessory Structure Permits handout. They must sit at least 2 feet from any side or rear lot line and at least 10 feet from any principal structure, may never be placed in the front yard, and the typical maximum height is 15 feet. A residential lot may have up to two accessory buildings (except garages) of no more than 250 square feet each without a concrete slab.
Shed Rules in Greenfield
Some RestrictionsLooking for Milwaukee County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Greenfield city rules.
Accessory Structures in Milwaukee County →