Within any districts of this section a building, structure or lot shall only be used for one of the uses indicated in the Schedule of District Regulations,[1] for the specific district in which it is located on the Zoning Map, and in accordance with the particular classification of that use in that district. Further, any such buildings, structures or lots shall only be utilized in conformance with the provisions of the above said schedule. In addition, such use shall also comply with all other applicable provisions of this chapter. However, more than one use may be allowed on a lot, provided that such additional use shall be deemed and treated as a conditional use and shall be subject to the approval by the Planning Board in accordance with § 250-61.