170.21   RB-1, RESIDENTIAL-BUSINESS TRANSITIONAL DISTRICT.
1.   Statement of Intent. The intent of the “RB-1” District is to provide for a transitional zone where residences and certain types of business may exist in a mutually compatible environment. This zone will be characterized by a low volume of traffic and limited outdoor advertising to protect the residences within and abutting the district, without restricting the growth of low intensity commercial uses. This district is basically designed as a buffer between strictly residential and commercial areas.
2.   Principal Permitted Uses. A building or premises shall be used only for the following purposes:
A.   Business service such as banks, including drive-in teller service, insurance, real estate, office buildings.
B.   Professional office buildings, medical and dental clinics, day care centers, or similar uses.
C.   Equipment sales and services such as radio or television shops, business machines, musical instrument shops, sewing machine sales and service shops.
D.   Retail stores such as books and stationary shops, jewelry, apparel shops, bakery shops, candy shops, florist shops, gift shops, household goods, hardware store, variety stores and drug stores.
E.   Art goods and bric-a-brac shops.
F.   Personal services such as barber shops, beauty salons, reducing salons, photographic studios, clothes, cleaning and launderettes and shoe repair shops.
G.   Restaurants and cafes, ice cream parlors, soda fountains and dairy stores. The serving or selling of alcoholic beverages at restaurants or cafes is permitted where such use is incidental to the operation. However, taverns or night clubs where the serving or selling of alcoholic beverages is the primary use is not permitted.
H.   Multi-Family Dwelling, lodging and rooming houses.
I.   Single family detached dwellings, provided the minimum width for any building elevation shall not be less than twenty (20) feet.
J.   Two family dwellings.
K.   Churches, convents, rectories, or manses.
L.   Schools and colleges, public and private.
M.   Hospitals, sanitariums, rest homes, nursing homes, convalescent homes, or other similar institutions.
N.   Clubs or lodges.
O.   Funeral homes and Mortuaries.
P.   Public or private parks, playgrounds, historical sites, golf courses, and other outdoor recreational facilities which are commonly, but not necessarily, operated on a non-profit basis with hours of operation between 7:00 a.m. and 10:00 p.m.; however, amusement parks, golf driving ranges, golf miniature putting courses, normally operated for profit and employing manufactured or constructed facilities of an unnatural or non-environmental design shall be excluded.
Q.   Public buildings, libraries, community buildings, or other similar public buildings.
R.   Cemeteries.
S.   Accessory buildings and uses incidental to the principal use, including outdoor swimming pools.
T.   Other compatible uses as determined by the Board of Adjustment after consultation with the Planning and Zoning Commission.
3.   Special Uses. The following special uses are permitted in the “RB-1” District only in accordance with the provisions set forth hereinafter:
A.   Public utility and public service installations and facilities.
B.   Schools and Churches.
C.   Recreational facilities for profit including lighted facilities, but only with hours of operation between 7:00 a.m. and 10:00 p.m.
D.   Automobile service stations.
E.   Home Occupations.
F.   Grocery (neighborhood and convenience) stores which front on either a collector or arterial street with hours of operation between 7:00 a.m. and 10:00 p.m.
G.   Other compatible uses as determined by the Board of Adjustment after consultation with the Planning and Zoning Commission.
4.   Minimum Requirements. The following minimum requirements shall be observed:
A.   Lot Area: The minimum lot area shall be 4,800 sq. ft. for a single family dwelling, 7,000 sq. ft. for a two family dwelling, and 8,000 sq. ft. or 2,000 sq. ft. per dwelling unit, whichever is greater, for a multiple family dwelling. The minimum lot area for a business lot shall be 5,000 sq. ft.
B.   Yard Requirements:
Front Yard: Building setback shall be a minimum of 20 feet.
Side Yard: The side yard for single family dwellings and duplexes shall be a minimum of five (5) feet, except on a corner lot the street side yard for all buildings shall be a minimum of twenty (20) feet. Principal buildings other than business buildings adjacent to other business buildings, single family dwellings, and duplexes shall have a minimum side yard of ten (10) feet. A garage attached to a dwelling may be located five (5) feet from the side lot line, but not a street line. Business lots adjoining other business lots shall have a minimum side yard of five (5) feet.
Rear Yard: The rear yard for a residential dwelling shall be a minimum of ten (10) feet. A garage attached to a dwelling may be located five (5) feet from an alley line. The rear yard for a business building shall be twenty (20) feet.
5.   Off-Street Parking Requirements: Two per unit for all dwelling units; and one additional parking space is required for each renter in a rooming or boarding house; and for all other permitted uses as required in Section 170.34.