(a) Unenclosed and uncovered steps, stoops, terraces, decks, and porches may extend into any minimum front or rear yards not more than five feet. Unenclosed and uncovered steps, stoops, terraces, decks, and porches shall not extend into the minimum side yard more than three feet. Covered or enclosed steps, stoops, terraces, decks, and porches shall meet all yard requirements.
(b) A bay window, bow window, entrance, vestibule or balcony ten feet or less in width may project not more than three feet into any minimum front, side, or rear yard.
(c) Cornices, eaves, ornamental features and chimneys may project not more than three feet over any required yard.