A. 
No building, structure or land shall hereafter be used or occupied, and no building or structure or part thereof shall hereafter be erected, constructed, reconstructed, moved or structurally altered, unless in conformity with all of the regulations herein specified for the district in which it is located.
B. 
No building or other structure shall hereafter be erected or altered:
(1) 
To exceed the height;
(2) 
To accommodate or house a greater number of families;
(3) 
To occupy a greater percentage of lot area;
(4) 
To have narrower or smaller rear yards, front yards, side yards or other open spaces; than is herein specified for the district in which such building or other structure is located.
C. 
No part of a yard or other open space, or off-street parking or loading space, required about or in connection with any building or structure for the purpose of complying with this chapter, shall be included as part of a yard, open space or off-street parking or loading space similarly required for another building or structure.
D. 
No yard or lot or provision for off-street parking space existing at the time of enactment of this chapter shall be reduced in size or area below the minimum requirements set forth herein. Yards or lots created after the effective date of this chapter shall meet at least the minimum requirements established by this chapter.
Within each district, the regulations established by this chapter shall be minimum regulations and shall apply uniformly to each class or kind of structure or land.