The Borough of Keansburg is hereby divided into districts as follows:

The regulations set forth in this Chapter for each district shall be minimum regulations and shall apply uniformly to each class of structure or land within the district, except as hereinafter provided.

No building or structures shall hereafter be erected and no existing building or structure shall be moved, altered, added to or enlarged, nor shall any land or building or portion of a building or structure to be used, designed, or arranged to be used for any purpose unless in conformity with all of the regulations herein specified for the district in which is it located.

Every principal building shall be located on a lot as defined in this Chapter. Except for multi-family and nonresidential uses no more than one principal building and its accessory buildings shall hereafter be erected on any one lot.

No yard or lot existing at the time of passage of this Chapter shall be reduced in dimension or area below the minimum requirements set forth herein. Yards or lots created after the effective date of this Chapter shall meet the minimum requirements established by this Chapter.