Except as hereinafter provided, no building or structure or part thereof and no lot or land or part thereof shall hereafter be used, except in conformity with the use regulations herein prescribed. Any lawful use that does not conform to the use regulations of this chapter shall be deemed a nonconforming use, except that uses granted as special exception uses by the Zoning Hearing Board pursuant to § 450-64 shall be deemed conforming uses. Variances granted by the Zoning Hearing Board pursuant to § 450-65 shall be deemed nonconforming.

Except as hereinafter provided, no building or structure or part thereof shall hereafter be erected, structurally altered, enlarged or rebuilt except in conformity with the lot dimensions, yard, court, coverage, height and density regulations herein prescribed. Any building or structure that does not conform to such regulations, hereinafter referred to as the "building regulations" of this chapter, shall be deemed a nonconforming structure, irrespective of the use to which it is put.

Any legally established existing use of a building or structure, lot or land, or part thereof, which use continues a conforming use under the provisions of this chapter, may be continued.

A partial taking by eminent domain of a de minimis portion of land or improvements by the Borough of Hellertown which would cause any property, in whole or in part, to become nonconforming as to any provision of this chapter shall be deemed to be conforming and not in violation of the Borough Zoning Ordinance immediately and simultaneously upon the date of the taking.