A use, building or structure, lawfully in existence on the effective date of this chapter, which shall be made nonconforming at the passage of this chapter, or any applicable amendment thereto, may be continued except as otherwise provided in this section.

No existing building or premises devoted to a nonconforming use shall be enlarged, extended, reconstructed, substituted or structurally altered except when changed to a conforming use, or when required to do so by law, or as allowed in §§ 217-104 and 217-108.

Any nonconforming use or structure partially damaged or destroyed by design, intent, fire, casualty or act of God may be repaired, restored, reconstructed or used as before, provided that the area of such use, building or structure shall not exceed the area which existed prior to such damage. All repairs shall be commenced within two years of such date or such use shall not be rebuilt except as a conforming use. In the event that substantial total destruction occurs, then the provisions of § 217-104 shall apply. A farm building on a farmland preserved lot, or an exception area on such lot, made nonconforming as a result of the acquisition of land by the Township of Washington may be continued, repaired, restored, reconstructed or enlarged, provided that any enlargement of the building does not extend or increase any nonconforming condition existing as of the date the land was acquired by the Township of Washington.

When a nonconforming structure or use is destroyed or damaged by design, intent, fire or other casualty or an act of God beyond repair, the nonconforming structure or use shall thereafter be terminated. Damage or destruction beyond repair, for purposes of this section, shall occur when it is determined that the structure or use is substantially totally destroyed with some quantity of destruction that surpasses mere partial destruction.

Normal maintenance and repair of a nonconforming structure or use is permitted, provided that it does not extend or expand the nonconformance.

A nonconforming use not used for two consecutive years and/or the change of use to a more restricted or conforming use for any period of time shall be considered a termination of the nonconforming use, and such nonconforming use shall not thereafter be revived.

Any nonconforming structure or use lawfully under construction on the effective date of this chapter, pursuant to plans filed with the Construction Official and approved by him and all other municipal boards and agencies as required under law, may be completed and may be used for the nonconforming use for which it was designed, to the same extent as if such building has been completed and was in use on the effective date of this chapter.

A nonconforming residential use or structure may be expanded to provide additional living space provided that the expansion does not infringe further upon any nonconformance and further provided that the number of units does not exceed the number allowed in the zone.

Any existing residential lot, on which a building or structure is located and which lot does not meet the minimum lot size or which building or structure violates any yard requirements may have additions to the principal building and/or construct an accessory building in accordance with the provisions of this section without an appeal to the Board of Adjustment, provided that the total permitted building coverage is not exceeded and/or the accessory building and/or addition does not violate any other requirement of this chapter, such as but not limited to height, setback and parking. For any existing nonconforming lot, a new dwelling unit or addition(s) to existing dwelling units or accessory buildings may be constructed on such lot, without an appeal to the Zoning Board of Adjustment, according to the following schedule.