A. Fences and walls as specified and limited may project into the front, rear and side yards.

B. Cornices, sills, eave projections and awnings without enclosing walls or screening may project into a required yard by not more than thirty inches, provided the width of any required interior side yard is not reduced to less than two feet, six inches, and any yard abutting a street is not reduced to less than five feet.

C. Open, unenclosed, unroofed decks may project into any required rear or interior side yard; providing, however, that the decks are constructed at grade elevations, or in no event exceed thirty inches above adjoining grade.

D. Bay windows and garden windows which do not require a foundation may project into a required front, rear, or street side yard by not more than thirty inches; provided, that the width of any yard abutting a street is not reduced to less than five feet.

E. Stairs, balconies, covered or uncovered porches may project no more than one hundred twenty square feet into a required front or rear yard, provided lot coverage is not exceeded.