23.60A.228

A. Maximum height. The maximum height in the CM Environment is 30 feet, except on Lake Washington where the maximum height for structures over water, including existing single-family residences, is 15 feet, unless modified in subsections 23.60A.228.B through 23.60A.228.E. B. Height exceptions for water-dependent and water-related uses. Cranes, mobile conveyors and similar equipment necessary for the function of water-dependent and water-related uses or the servicing of vessels may extend above the maximum height limit. C. Pitched roofs. The ridge of a pitched roof on a principal structure, including projections to accommodate windows, may extend 5 feet above the maximum height allowed, as provided in the underlying zone or special district. D. Rooftop features. The following apply to rooftop features: 1. Radio and television receiving antennas, flagpoles, smokestacks, chimneys and religious symbols for religious institutions, are exempt from height controls of this Chapter 23.60A , provided: a. The features are no closer to any adjoining lot line than 50 percent of their height above existing grade; or b. If attached to the roof, the features are no closer to any adjoining lot line than 50 percent of their height above the roof portion where attached; and c. The width of the feature does not obstruct the view of the shoreline from a substantial number of residences in areas within or adjoining the Shoreline District. 2. Clerestories, communication and accessory communication devices, firewalls, green roofs, greenhouses, mechanical equipment, monitors, open railings, parapets, planters, stair and elevator penthouses, skylights and solar collectors may extend 4 feet above the maximum height limit where allowed in the underlying zone and special district, except where the width of such features obstructs the view of the shoreline of a substantial number of residences within or adjoining the Shoreline District, in which case the Director may reduce the height allowed; and 3. Structures may extend 18 inches above the maximum height limit if the proposed roof insulation exceeds the energy code requirements in effect when the structure is constructed. E. Bridges. Bridges may extend above the maximum height limit. (Ord. 124105 , § 3, 2013.)