No building shall be erected or enlarged unless the following minimum requirements are met:
(a) Lot area 10,000 square feet (see Section 1119.03 hereof)
(b) Lot width 70 feet (see Section 1119.03 hereof)
(c) Front yard* 25 feet
(d) Side yards* 6 feet
(e) Rear yard* 30 feet
(f) Ground floor area 960 square feet per unit
(g) Total floor area 1,200 square feet per unit
(h) Lot area per family 5,000 square feet