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

No building shall hereafter be erected and no existing building shall be moved altered added to or enlarged, nor shall any land or building or portion of a building 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 it is located. All permitted uses shall conform to the specific requirements of at least the minimum standards as listed in the schedule and to additional standards and provisions which may exist elsewhere in this chapter, including but not limited to the provisions of site plan review and special use permits.

Every principal building shall be located on a lot as defined in this chapter. Except for planned development groups complying with all the regulations applying thereto as prescribed by this chapter, no more than one principal building and its accessory structures shall hereafter be erected on any one lot.