A vested nonconforming use shall not be changed
to any other nonconforming use, whether or not of the same kind and
character, nor shall it be enlarged or extended to occupy a greater
area of land or building than that actually physically occupied at
the effective date of this chapter, nor shall any nonconforming use,
structure or building be moved to or resumed at another location,
nor shall any vested nonconforming building or structure be enlarged,
extended, reconstructed or structurally altered (except that ordinary
repair and maintenance and alterations required by law shall be permitted,
provided that such repair or alterations shall not increase the degree
of nonconformity of the building or substantially prolong the expected
life thereof or increase the cubical content of the building).
If any nonconforming use or building is changed
to a conforming use or building, it shall not again be changed or
altered except in conformity with the regulations prescribed by this
chapter.
[Added 8-20-1966]
On existing substandard lots which are unimproved
and in bona fide single separate ownership on the effective date of
this chapter or which become substandard through an amendment or amendments
imposing greater minimum lot area or frontage requirements, a building
may be erected, provided that all use, front yard, rear yard, side
yard, height, minimum habitable floor area and maximum lot coverage
requirements and restrictions are complied with; provided, however,
that if at any time after the effective date hereof the owner has
owned or acquired an additional contiguous vacant and unimproved lot
or parcel which, if added to or merged with such substandard lot,
would have permitted the latter to conform to the requirements of
this chapter, then, in effect, the exemption set forth in this section
shall not apply. The addition of a portion of such contiguous, unimproved
land to the then existing substandard lot under the foregoing provisions
shall not constitute a subdivision of such contiguous plot.