Projections into yards and courts.
Except as herein specified, all yard and courts shall be open, unobstructed to the sky.
Cornices and eaves may project not more than three (3) feet over any front or rear yard; and over any side yard to an extent not exceeding one-third of the width of such yard or court and not exceeding two (2) feet except within five (5) feet of the front wall, where they may project in any case not more than three (30 feet. Sills, leaders, belt courses and ornamental features may project not more than six (6) inches into or over any yard or court. A bay window not exceeding ten (10) feet in width may project into a front, side or rear yard not more than three (3) feet and not more the one-third of the width of the side yard in any case and an open fire-escape may not thus project more than five (5) feet, provided neither shall project within five (5) feet of any side lot line.