128-31 - Permitted Obstructions LAST AMENDED 12/5/2024 The provisions of Section 33-42 (Permitted Obstructions) shall apply to all #buildings#, 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). However, where towers are provided in accordance with Section 128-35 (Towers), the allowance in paragraph.