Any lawful nonconforming use or structure existing at the time of passage of the ordinance from which this chapter is derived, as well as any lawful nonconforming use or structure existing at the time of passage of the ordinance from which this chapter is derived, may be continued, provided that, in either case, the use, building or premises involved shall neither be structurally altered or enlarged unless such altered or enlarged part, and the use thereof, shall conform to the provisions of this chapter. No nonconforming use, if discontinued for more than one year or changed to a permitted use, shall be resumed or changed back to a nonconforming use, and no nonconforming use shall be changed to another nonconforming use.

(Ord. No. 200, art. 14, § 1400, 7-7-1997)

Nothing in this chapter shall prevent the restoration of a building destroyed less than 50 percent of its value, exclusive of the foundation, by fire, explosion, act of God or act of the public enemy, subsequent to the passage of the ordinance from which this chapter is derived, nor shall such destruction prevent the continuance of the use of such building, or part thereof, as such use existed at the time of such impairment of such building, or part thereof.

(Ord. No. 200, art. 14, § 1401, 7-7-1997)

Any building or structure for which a building permit has been issued, and the construction of the whole or a part of which has been started, or for which a contract has been entered into pursuant to a building permit issued prior to the effective date of the ordinance from which this chapter is derived, may be completed in accordance with the plans and application on which the building permit was granted.

(Ord. No. 200, art. 14, § 1402, 7-7-1997)

(a)

Nothing in this chapter shall prevent the repair, reinforcement or reconstruction of a nonconforming use, building or structure, or part thereof, existing at the effective date of the ordinance from which this chapter is derived, rendered necessary by wear and tear, deterioration or depreciation, provided, the cost of such work shall not exceed 30 percent of the assessed valuation of such building or structure at the time such work is done.

(b)

Nothing in this chapter shall prevent the strengthening of any building or wall declared unsafe by the building department.

(Ord. No. 200, art. 14, § 1403, 7-7-1997)