98-422 - Special rooftop regulations LAST AMENDED 12/5/2024 The provisions of Section 33-42 (Permitted Obstructions) shall apply to all #buildings or other structures# within the #Special West Chelsea District#, except that dormers may penetrate a maximum base height in accordance with the provisions of paragraph (b)(1) of Section 23-413 (Permitted obstructions in certain districts). All mechanical equipment located within 15 feet of the level of the #High Line bed# that is within 25 feet of the #High Line#, measured horizontally, or within the #High Line frontage#, as applicable, shall be screened and buffered with no intake or exhaust fans or vents facing directly onto the #High Line#.