No existing building, structure or premises devoted to a use not permitted by this Zoning Code in the district in which such building or premises is located, shall be enlarged or extended, unless such use is changed to a use permitted in the district in which such building or premises is located.
The moving, reconstruction, extension, enlargement, or alteration of nonconforming buildings or structures shall be as follows:
(a) Alterations. Alterations within the building footprint are permitted if the alteration conforms to off-street parking, loading, landscaping and maneuvering standards of this Zoning Code.
For the purposes of this chapter, “alteration” shall mean any change or rearrangement in the supporting members of an existing building, such as bearing walls, columns, beams, girders, or interior partitions, as well as any change in doors, windows, means of ingress and egress, or any enlargement to or reduction of a building or structure, whether horizontally or vertically, or the moving of a building or structure from one location to another.
(b) Enlargement. The enlargement of nonconforming structures is permissible in the front, side and rear yards if:
(1) Such enlargement does not encroach into a required yard setback and if such enlargement does not further encroach closer to a lot line than the existing nonconforming structure.
(2) The enlargement of the structure shall not exceed the height of the existing structure and shall conform to off-street parking, loading, landscaping and maneuvering standards of this Zoning Code.
(3) No enlargement shall cause additional nonconformities with respect to other lot development standards in the district the lot is located.
(4) The total of all enlargements of a nonconforming structure or building shall not exceed 100 percent of the gross floor area of the nonconforming structure prior to enlargement.
(5) If the enlargement of a nonconforming structure is proposed to encroach into a required yard, a variance is required by the Board of Zoning Appeals.
(6) Any expansion of a nonconforming use shall be within a fully enclosed building or structure.
(Ord. 17-2013, passed 9-24-2013)