In all Residence Districts, the obstructions set forth in this Section, inclusive, shall be permitted to penetrate a maximum height limit or sky exposure plane set forth in Sections 23-63 (Height and Setback Requirements in R1 Through R5 Districts), 23-64 (Basic Height and Setback Requirements), 23-66 (Height and Setback Requirements for Quality Housing Buildings) or 23-69 (Special Height Limitations).