In all Residence Districts, the City Planning Commission may permit a non-commercial outdoor swimming pool club, or any non-commercial club with an outdoor swimming pool located less than 500 feet from any lot line, provided that the following findings are made:

(a)        that such use is so located as not to impair the essential character or future use or development of the nearby residential neighborhood;

(b)        that such use is so located as to draw a minimum of vehicular traffic to and through local streets;

(c)        that such use has adequate reservoir space at the vehicular entrance to prevent the congestion of automobiles on the streets;

(d)        that in R1, R2, R3 or R4 Districts, the pool or any accessory facilities affixed to the land are not located closer than 100 feet or, in the case of an accessory outdoor tennis court, such tennis court shall not be closer than 20 feet, to any side or rear lot line coincident with a side or rear lot line of an adjoining zoning lot in a Residence District, and not located closer than 50 feet to any street line, and that any planned temporary enclosure such as an air-supported structure be indicated on the plans submitted with this application, and in no event shall such a structure be located closer than 50 feet from any street or lot line, if such a structure is planned subsequent to the approval of the special permit, then an amended application subject to the same approvals of this Section shall be submitted; and

(e)        that for every 200 square feet of lot area used for the pool and its accessory facilities, one accessory off-street parking space is provided.

The Commission may prescribe appropriate conditions and safeguards to minimize adverse effects on the character of the surrounding area, including limitations on signs or the hours of operation, or requirements for shielding of floodlights, screening or surfacing of all access roads or driveways.