For the purpose of this chapter, the Village of Fox Point is hereby divided into the following basic zoning districts: A-1, A-2, A-3, B and C Resident Districts; D Business District; E Semi-Business District, and F Institutional District. In addition to the basic districts, there is hereby created PDO, Planned Development Overlay District, and also Cultural Overlay District. Said districts are as shown and indicated on a map of the Village of Fox Point entitled "Official Zoning Map No. 21 of the Village of Fox Point." Said map is on file in the office of the Village Manager.