A.
Permitted uses. Within the A Residence Zone, no lot, building or structure or any part thereof shall be used, and no building or structure or any part thereof shall be built, altered, enlarged, modified, arranged, intended or designed to be used, for any purpose other than the following:
(1)
A single detached dwelling used as a residence for not more than one family, on a lot not less than 50 feet in width and having an area of not less than 5,000 square feet. Such residence may contain the professional office of its resident owner only where the owner of such dwelling is a member of a recognized profession, provided that the office work therein involves principally the personal services of said owner; and provided further that such office shall be located only on the first floor of said dwelling and that the area thereof shall be limited to not more than 50% of the first-floor area of said dwelling; and provided further that in connection with said office, no overnight hospital facilities shall be provided for persons or animals.
(2)
Church or other place of worship, including parish house and Sunday school building; public school; municipal parks; public recreational facilities; public hospitals; public library; public museum; public art gallery, reading room or any lot or building thereon owned and used exclusively by the federal, state, county or Borough government for public purposes.
(3)
Accessory uses customarily incidental to the above uses, provided that no garage shall be designed and built for or used for any purpose other than as a garage for not more than three passenger cars and as an accessory to the principal building on said lot, and provided that provisions for the open spaces on any such lot as required by this chapter are maintained. Within any residential zone, the use of garage space by anyone other than the owner or occupant of the main building is prohibited.
B.
Within any A Residence Zone, no person may use in connection with any commercial enterprise, except as in this chapter specifically permitted, any lot or premises for storing any combustible material, coal or fuel, contractors' equipment, commercial vehicles, building materials or for the storage of any trailer or trailers built or designed for living purposes, provided that no such trailer or trailers shall be used or permitted to be used for any of the purposes hereinabove set forth.