53-59 Amend sections in 1133 Zoning - modify lot area districts

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- 5 - In a Class la or lb district, for every building erected, there shall be a side yard along each lot line other than a street line or a rear line. In the case of not to exceed six single family dwellings built in a terrace as a continuous structure the side yards shall only be required for such group of buildings. In a class lb district, semi-detached one or two family dwellings may be constructed. Apartment houses may not be built in terraces or as semi-detached buildings. Every apartment house shall have a side yard along each lot line other than a street line or a rear line. The least dimension of the side yard shall not be less than four (4) feet in a la district or less than one-sixth (1/6) of the height of the building, whichever is the greater. The least dimension of the side yard shall not be less than eight (8) feet an a lb district or less than one-smxth (1/6) of the height of the building, whichever is the greater. The side yard shall Start from the curb level~ ~rovide~, however, that the above provision shall not e applicable to A2a and A5 H4 area districts, in a lb use district, but in such A2a and A5 H4 area districts in, a lb use district, yards shall be provided between each building and side lot line and between buildings on the same lot in accord with the following: 1. Definitions In order to provide for the planning of one building on a lot and of buildings in groups on the sams lot to form open yards and courts which are re- lated to the use of the rooms within the dwellings, the following terms are defined: a) A main wall - any exterior wall containing the principal window or windows of a living, dining or sleeping room or rooms, and/or other windows, b) A secondary wall - an exterior wall, other than a main wall, containing minor window or windows of a dining or sleeping room, principal window or windows of a kitchen or bath room, or a blank surface. c) Wall unit - each vertical plane of a building shall be considered as a separate wall in applying these yard regulations. d}.gverlapping wglls - thgse portions of the exterior wag± or walls which are directly opposite when.two buildings, parallel, or obliquely aligned within ~,5 degrees of parallel, face each other across an open yard or space. e) Required yards - the required yards shall be the horizontal distance between parallel walls of a building or between a wall and a lot line. 2. Schedule of Yard Requirements - The yards between a building and a side lot line and the yards between build- ings on the same lot across an open yard or court shall be not less than set forth in the following schedule: MINIMUM WIDTH OF, YARDS -,,,,CLASS, lb DISTRICT~ Between a main wall facing another main wall if over- lap is less than 50 feet. 35 feet plus 0.5 times height of highest building.