Duplexes are permitted on corner lots in any residential or mixed use district according to the following standards:
.1 The entrances to each unit in the structure will face different streets;
.2 The dwelling must meet the minimum front yard setback from both streets upon which a unit faces;
.3 The lot has at least 1.5 times the minimum lot area, if any, for the district.
.4 Duplexes which meet the standard for the attached house or the apartment building, are permitted without corner lot restrictions in those districts which permit attached housing and apartment building types.