Regardless of the size of a lot legally recorded prior to the passage of this chapter, such lot may be developed for any use permitted in the district in which the lot is located provided that it meets the requirements of § 310-58.

If two or more contiguous lots of record in one ownership occur prior to passage of this chapter and if one or all of these lots are less than the requirements of lot width and area as established in this chapter, the total contiguous area of all the lots shall be considered as undivided and, unless consolidated into an adjoining lot to become part of a conforming parcel, no portion of any such nonconforming lots shall be used to calculate setback or bulk and area requirements for any adjacent commonly owned lot. Nor shall any portion of any such nonconforming lots be used for an accessory structure serving an adjacent lot. Nor shall any primary structure be built on such nonconforming lot unless such nonconforming lot(s) equals or exceeds 90% conformance with the then-current bulk and area requirements of this chapter. Nor shall any division of any such parcels be made which leaves remaining any lot with bulk or area or otherwise having dimensions that do not meet the current requirements of this chapter. The Zoning Hearing Board may grant a variance for development of such undersized lots where a hardship clearly exists.

Where at the effective date of adoption or amendment of this chapter lawful use of land exists that is made no longer permissible under the terms of this chapter as enacted or amendment, such use may be continued, so long as it remains otherwise lawful, provided the following conditions are applied.

If any such nonconforming use of land ceases for any reason for a period of one year, any subsequent use of such land shall conform to the regulations specified by this chapter in the district in which such land is located.

As a result of adoption of this chapter, no illegal use of land which was initiated under the previous Zoning Ordinance, as amended, shall become nonconforming, but instead shall be subject to remedy under the provisions or this chapter regarding violations.

No such structure may be altered so that its nonconformity with respect to the location and bulk on the property is increased.

Any replacement of such structure as a result of total damage shall be carried out in conformance with this chapter, except, however, partial or total removal of a structure due to fire or act of God, shall not terminate the nonconforming structure on the premises. Reconstruction shall not exceed what previously existed.

Should such structure be moved, it shall thereafter conform to requirements of this chapter regarding location on the property.

When a surface of a building is nonconforming in its relationship to any adjacent property line, such surface may be extended along its existing plane for a length not to exceed the existing surface length if the criteria established in § 310-59C is met but thereafter may not be further extended.

Nonconforming sign structures shall be governed by § 310-92 of this chapter.

The maintaining or strengthening to a safe condition of any nonconforming structure shall not be denied, provided it meets all the requirements of this section.

Nonconforming lighting shall be governed by § 310-66H(4) of this chapter.

No structure housing a nonconforming use but capable of being enlarged without violating other requirements of this chapter may be expanded or increased more than 50% over the permissible area it occupied at the time of adoption of this chapter or subsequent amendments, or any previous ordinances or amendments to the same to it that would make the use nonconforming.

A nonconforming use which occupies part of a structure may be extended throughout the structure it occupies (except as required for home occupations see § 310-69), but the expansion under such circumstances may not be extended to occupy land outside the structure.

Provided no structural alterations are made, any nonconforming use of a structure may be changed to a different use of an existing structure which use is a permitted principal use in the zoning district in which the structure is located.

When a nonconforming use of a structure and/or premises ceases for a period of one year, such nonconforming use of the structure and/or premises shall not thereafter be reestablished.

Where a nonconforming use of structure and premises exists in combination, the removal of the structure and/or use in the structure shall terminate the nonconforming use of the premises. Partial or total removal of a structure due to fire, act of God or accident, shall not terminate the nonconforming use of the premises. Reconstruction shall not exceed what previously existed.

As a result of adoption of this chapter, no illegal use of a structure which was initiated under the previous Zoning Ordinance, as amended, shall become nonconforming, but instead shall be subject to remedy under the provisions of this chapter regarding violations.

The Zoning Officer may receive applications for certification of nonconformance from all uses of land and/or buildings made nonconforming as a result of adoption of this chapter.

The Zoning Officer may keep the data current by the addition of nonconforming uses as amendments to this chapter and by the deletion of nonconforming uses as they are eliminated.

When the Zoning Officer identifies a nonconforming use, he may inform the property owner by mail, and when the owner verifies the nonconformity, the Zoning Officer shall issue a certificate describing the nonconformity and giving it legal stature.