Where, at the effective date of adoption or amendment of this chapter, a lawful use of a structure, or of a structure and lot in combination, exists that is made no longer permissible in the Zoning District under the terms of this chapter as enacted or amended, such use may be continued as long as it remains otherwise lawful, subject to the following provisions:
A. No nonconforming use of a structure, or of a structure and lot in combination, shall be changed to another type of nonconforming use unless such new use is considered by the Zoning Hearing Board to be less nonconforming than the original use.
B. A nonconforming use of a structure may be extended throughout any part of a structure that was manifestly arranged or designed for such use at the time of adoption or amendment of this chapter, but no such use shall be extended to occupy any lot or portion of a lot outside such structure.
C. No nonconforming use of a structure, or of a structure and lot in combination, shall be enlarged, extended, constructed, reconstructed or moved unless a special exception shall be obtained through action of the Zoning Hearing Board as provided for by §
195-157.1, Uses by special exception, and subject to the following:
(1) The extension does not encroach upon the lot area requirements, minimum setbacks, the maximum building height requirements or other zoning and land development requirements of the district in which the nonconforming use is presently located.
(2) The extension is for the purpose of expanding the nonconforming use which was in existence at the time of the adoption of this chapter.
(3) Such extension does not result in an increase in total floor area or lot use area of more than 50% of the original floor area or lot area.
(4) Adequate parking can be provided in conformance with this chapter to serve both the original and expanded use.
(5) Such expansion does not present a threat to the health or safety of the community or its residents.
D. Nothing in this section shall prevent the strengthening or restoring to a safe condition of any portion of a building declared unsafe by a proper authority.