City of Milwaukee v. Leavitt

We start with the premise that the nonresidential uses of the building made between the adoption of the Milwaukee Zoning Ordinance in 1921 and the year 1941 constituted legal nonconforming uses', but that the commercial and industrial uses made subsequent to January 7, 1947 (the date Perssion acquired title) were illegal nonconforming uses. This is because sec. 62.23 (7) (h), Stats., provides:

“Nonconforming uses. The lawful use of a building or premises existing at the time of the adoption or amendment of a zoning ordinance may be continued although such use does not conform with the…