The lawful use of a building, structure or property which existed
at the time this chapter, or an applicable amendment to this chapter,
took effect, and which is not in conformity with the provisions of
this chapter, including the routine maintenance of such building or
structure, may be continued subject to the following conditions.
Notwithstanding § 62.23(7)(h), Wis. Stats., the repair,
reconstruction, renovation, remodeling or expansion of a legal nonconforming
structure in existence at the time of adoption or subsequent amendment
of this chapter adopted under § 62.231, Wis. Stats., or
of an environmental control facility in existence on May 7, 1982,
related to that structure, is permitted under § 62.231(5),
Wis. Stats. Section 62.23(7)(h), Wis. Stats., applies to any environmental
control facility that was not in existence on May 7, 1982, but was
in existence on the effective date of this chapter or amendment.
If a nonconforming use or the use of a nonconforming structure
is discontinued for 12 consecutive months, any future use of the building,
structure or property shall conform to this chapter.
Any legal nonconforming use of property which does not involve
the use of a structure and which existed at the time of the adoption
or subsequent amendment of this chapter adopted under § 62.231
or 61.351, Wis. Stats., may be continued, although such use does not
conform with the provisions of this chapter. However, such nonconforming
use may not be extended.
The maintenance and repair of nonconforming boathouses which
are located below the ordinary high-water mark of any navigable waters
shall comply with the requirements of § 30.01, Wis. Stats.
Uses which are nuisances under common law shall not be permitted
to continue as nonconforming uses.