The provisions of this article apply to nonconforming uses,
structure and lots as created by the initial enactment of this bylaw
or by any subsequent amendment.
Any lawful use of any structure or land or both may be continued
although not conforming with the provisions of this bylaw, but no
such lawfully nonconforming use shall be changed, intensified, extended
or enlarged in any manner except with the approval of the Board of
Appeals. Preexisting nonconforming structures or uses may be extended
or altered, provided that no such extension or alteration shall be
permitted unless there is a finding by the Board of Appeals that such
change, extension or alteration shall not be substantially more detrimental
than the existing nonconforming structure or use to the neighborhood.
This section shall not apply to billboards, signs or other advertising
devices, subject to the provisions of MGL c. 93, §§ 29
through 33.
A preexisting nonconforming structure or use which is abandoned
or not used for a period of two years or more shall be deemed to have
been abandoned, and thereafter such nonconforming structure or lot
may only be developed or used in accordance with the applicable provisions
of this bylaw.
No building or other structure which has been damaged or destroyed
by fire, or by other natural or accidental cause, to the extent of
75% or more of its replacement cost shall be repaired or rebuilt except
in conformity with the applicable provisions of the bylaw.
Any nonconforming structure shall not be removed to any other
location on the lot or any other lot unless every portion of such
structure, the use thereof, and the lot shall be conforming.
Any structure determined to be unsafe may be restored to a safe
condition. Such work on any nonconforming structure shall not place
it in greater nonconformity.