No building shall be erected or enlarged in R-3 Districts unless the following yards are provided and maintained in connection with the building, structure or enlargement:
(a) Front Yard. A front yard of not less than twenty-five feet, but not less than any other residence on that street.
(b) Side Yard. A side yard on each side of the principal building of not less than six feet, except where a side yard adjoins a street, the side yard shall not be less than seventy percent of the setback distance of the prevailing building line.
(c) Rear Yard. A rear yard of not less than twenty-five feet.
(Ord. 10-16-67. Passed 11-20-67.)