Where the street or lot layout, actually on the ground or as recorded, differs from the street line and lot lines as shown on the Official District Zoning Map, the Board of Zoning Appeals, after notice to the owners of the property and after a public hearing, shall interpret the map in such a way as to carry out the intent and purpose of the Zoning Ordinance. In case of any questions as to the location of any boundary line between zoning districts, a request for interpretation of the Official District Zoning Map may be made to the Board of Zoning Appeals and a determination shall be made by the Board of Zoning Appeals.