All uses permitted in Residence AA and Residence A Districts.

Apartments may be used as offices by persons practicing recognized professions such as medicine, dentistry, physiotherapy and the like. No more than 10% of the apartment units in any structure may be used for this purpose.

Professional buildings for the use of persons in the practice of such professions as medicine, dentistry, physiotherapeutics and like callings, within the generally accepted concept of the term.

Hotels, motels and boatels as defined in § 210-3, anything hereinafter contained to the contrary notwithstanding.

Clubs and lodges, except those whose chief activity is a service customarily carried on as a business or primarily for gain. Clubs and lodges may operate dining rooms provided that such operation is incidental to the activities of the organization.

Any use not herein specifically permitted is prohibited.

Hospitals or sanatoriums for the treatment of human ailments are prohibited, except that hospitals or institutions treating liquor-habit patients, if existing at the time of the enactment of this amendment, shall be permitted to exist as a lawful nonconforming use.

Tattoo parlors.

Generally. All buildings and structures shall be limited to 50 feet in height, except that no dwelling shall have a height of more than 35 feet nor have more than three stories, and apartment houses shall not exceed 50 feet in height nor have more than four stories, including the basement.

Applicability. These provisions shall not apply to restrict the height of a church spire, tower or belfry or of a monument, flagpole, water tank, elevator, bulkhead or stage tower or any noncommercial television or radio aerial.

One-family dwellings. A one-family dwelling shall not occupy more than 30% of the area of the lot, plus an additional 10% for the erection of a garage as provided in the Residence A District.

Apartments. An apartment house shall not occupy more than 40% of the area of the lot, including accessory buildings or structures.

Open space. Open space, out-of-doors and uncovered, shall be provided at the ratio of at least one square foot of open space to each two square feet of residential floor area which excludes the basement or cellar.

Open recreation space. Open recreation space, out-of-doors, shall be provided on the basis of 1/6 of the open space requirement in a single contiguous area other than the front yard. This requirement is a part of the open space requirement. Open recreation space shall use a portion of the open space required by Subsection C above.

Front yard depth: the average front yard depth of existing buildings on the same side of the street in the same block and within 200 feet of each side of the lot; if there are no existing buildings as aforesaid, the average front yard depth of existing buildings on the opposite side of the street in the same block and within 200 feet of the lines projected from each side of the lot; in no event, less than 25 feet;

Side yard width: 20 feet;

Rear yard depth: 20 feet:

Uses prohibited. With the exception of one apartment in the basement of an apartment house, actually occupied by the building superintendent and his immediate family, no basement, cellar or half story in an apartment house shall be used for persons to live in or sleep or for professional or business purposes or for any purpose except housing the mechanical and heating apparatus to serve the structure and for storage as an accessory use by tenants.

Uses permitted. The basement and cellar may be used for lobbies, for recreational facilities, for parking tenants' vehicles, for machines to launder and dry linens and wearing apparel, utilizing only water as a liquid and as an accessory to the laundering and cleaning process, and if otherwise permitted by law, for coin vending machines for the use and convenience of the tenants of the apartment house only.