Except as specifically provided herein, this bylaw shall not
apply to structures or uses lawfully in existence or lawfully begun,
or to a building or special permit issued before the first publication
of notice of the public hearing on an amendment which may relate to
such permit. It shall apply to any change or substantial extension
of such use, to any construction, reconstruction, alteration, or relocation
of such building or structure and to any building or special permit
if the work so authorized has not commenced within six months of issuance.
[Amended 6-14-2021 ATM by Art. 46]
A building or structure lawfully erected or located prior to the publication of first notice of a public hearing for an amendment of this bylaw shall not be affected by such amendment, even though such building or structure would thereafter no longer conform to this bylaw. Such building or structure shall not be reconstructed, extended, or altered except upon issuance of a special permit, as provided in Article XIII; however, non-conforming single-or two-family residences may be constructed, extended, or altered as long as such reconstruction, extension, or alteration does not increase the non-conformance thereof. Additions extending the non-conforming aspect at a distance less than required by this bylaw shall be deemed an increase in non-conformance.
A.Â
Whenever
the reconstruction of a nonconforming single- or two-family residence
increases a nonconformity, the footprint of the reconstructed building
shall not be more than 50 percent greater than the footprint of the
original building.
B.Â
On a
nonconforming lot, a special permit is not required in order to increase
only the height of a single- or two-family residence, so long as the
new height does not exceed the average height of all other single-
and two-family residences within 500 feet of the lot on which the
reconstructed residence will be built; provided, that the new height
shall not be greater than is otherwise allowed in the zoning district.
When the non-conforming use of any building, structure, including
signs, or premises has been or shall be discontinued for a period
of two years, it shall not be reestablished, and the future use thereof
shall be in conformity with this bylaw.