The following uses are permitted in a U-3 District:

   (a)   Uses permitted in the U-2 District; and

   (b)   Apartment houses.

(Ord. 1985-29. Passed 10-14-85.)

   In a U-3 District, no building or premises shall be used, and no building shall be erected which is arranged, intended or designed to be used, for other than a Class U-1, U-2 or U-3 use.

(Ord. 1985-29. Passed 10-14-85.)

   In any U-3 District, no dwelling, other than a single-family or two-family dwelling, shall be erected or altered to accommodate or make provision for more than one family for each 2,904 square feet of zoned lot area, whether such lot is an interior or corner lot, and no single-family dwelling shall be erected on any lot less than 8,500 square feet in area with an average width of not less than sixty feet. No dwelling for two families shall be erected unless the lot area per family is at least 5,000 square feet. The set-back building line shall conform to the same set-back requirements as buildings in a U-1 District.

(Ord. 1985-29. Passed 10-14-85.)

   In any U-3 District, no dwelling, other than a single-family or two-family dwelling, shall be erected or altered except in accordance with the following provisions:

   (a)   Area Regulations.

      (1)   There shall be a maximum of fifteen multifamily dwelling units per acre, or, in fractional parcels, a minimum of 2,904 square feet of zoned lot area for each multifamily dwelling unit.

      (2)   The total development area shall be a minimum of three acres.

   (b)   Maximum Percent of Land Covered by Buildings. Main and accessory buildings shall occupy not more than twenty-five percent of the area of the zoned lot, except that an additional five percent of the lot may be occupied by accessory parking garages.

   (c)   Minimum Lot Width. No apartment building or row house shall be permitted on a lot less than 200 feet wide, measured at the building set-back line.

   (d)   Yard Regulations.

      (1)   Intent. The yards of multifamily buildings shall be related to the plan of the dwelling units within the building as well as to the yards. Buildings shall be arranged so as to ensure privacy between adjacent buildings and intersecting wings of buildings, and from streets, parking spaces and recreation areas.

      (2)   Definitions. As used in this section:

         A.   "Main wall" means any exterior wall containing the principal windows of a living, dining or sleeping room or rooms and/or other windows.

         B.   "Secondary wall" means an exterior wall, other than a main wall, containing minor windows of a dining or sleeping room, principal or minor windows of a kitchen or bathroom or a blank surface.

         C.   "Wall unit" means each vertical plane of a building, which shall be considered a separate wall in applying these yard regulations.

         D.   "Overlapping walls" means those portions of exterior walls which are directly opposite when two buildings, parallel or within thirty degrees of parallel, face each other across an open yard or space.

         E.   "Single development" means one multifamily building located on a lot which abuts a public street.

         F.   "Group development" means more than one multifamily building located on a zoning lot which may or may not be developed in the usual street and lot pattern.

      (3)   Schedule of yard dimensions. Multifamily buildings shall be designed, erected, altered, moved, maintained or used in accordance with the following schedule of yard regulations, except that front yard setbacks shall be not less than required in other sections of this Zoning Code.

 

 

   The minimum width of yards between any two parallel walls which overlap more than fifty feet, or extend unbroken for more than fifty feet parallel, or within fifteen degrees of parallel, to a property line, as set forth in such schedule, shall be increased not less than 0.15 times the number of feet the walls overlap or extend along a property line more than fifty feet. The minimum width of a yard between any wall and a side or rear lot line shall be not less than one-half of the width established in such schedule for the respective types of walls, unless shown otherwise on the Zone Map where adjoining a U-1 Single-Family House District.

      (4)   Use and design of yards. The required yards, set forth in paragraph (d)(3) hereof, may be used for pedestrian walks, recreation areas, parking areas or driveways. However, accessory buildings or uses shall be located not less than set forth in the following schedule. Yards not occupied by any such accessory building or use shall be fully developed with lawns and other landscape features.

 

 

   A parking area may be located in the required front yard setback, but not less than twenty-five feet from the front property line. Off-street parking facilities shall be provided not more than 200 feet from the building entrance used by each occupant.

   (e)   Height Regulations. The height of any main or accessory building shall not exceed three stories or thirty-five feet, exclusive of a chimney or other permitted appurtenance located upon or constituted as an integral part of a main building.

   (f)   Off-Street Parking. Off-street parking shall be provided in accordance with Chapter 1189. In addition, there shall be a minimum of two additional off-street parking spaces allotted per dwelling unit. Additional visitor parking shall be provided in common parking areas distributed throughout the development.

   (g)   Dwelling Unit Area Requirements.

      (1)   Measurement standards. The area of a dwelling unit shall be measured from the interior face of exterior walls and from the centerline of party walls in multifamily dwellings. The following areas shall be excluded: garages, porches, public halls and utility and storage rooms.

      (2)   Minimum area. The minimum area of a multifamily unit shall be not less than:

 

 

      In a multifamily development all units shall contain at least one bedroom.

      (3)   Utility and general storage area. At least fifty square feet of utility and general storage space shall be provided for each family dwelling unit within a multifamily building in addition to the required minimum dwelling area.

   (h)   Approval of Development Plans. Preliminary development plans drawn to scale, showing locations of buildings, yards, driveways, walks, parking and recreation areas and other site improvements for multifamily developments, shall be submitted to the City Planning Commission for approval. Building permits will not be issued until such plans are found to conform and comply with adopted plans and ordinances and until such plans are approved by the Commission. The drawing shall also show the surrounding streets and the nearest buildings or adjacent lots.

   (i)   Modifications. The Board of Zoning Appeals may, after public notice and hearing and subject to such conditions and safeguards as the Planning Commission may prescribe to protect the appropriate use of neighboring property, modify certain of the requirements of this section if it finds that amenities such as privacy, light and openness are improved because of skillful design in the arrangement of buildings, landscaping or other site features. The Board may require wider yards, where an adjoining building is near a lot line, and such features as fences and planting to protect adjoining one-family developments. Such modifications shall be confirmed by a resolution of Council before becoming effective.

      The Planning Commission may also recommend modification of certain requirements pertaining to the minimum area of a multifamily unit and the requirements pertaining to the number of bedrooms.

      The Board shall not decrease the yard requirements in order to allow the maximum number of units permitted in this Zoning Code.

(Ord. 1985-29. Passed 10-14-85.)

   Where a building line is shown on the Zone Map as an existing alignment line, the alignment of buildings existing along a street frontage shall determine the building line. On any street frontage in a U-3 District where no building line is designated on the Map, the location of the building line shall be as follows:

   (a)   On a street frontage on either side of a street between two intersection streets, but excluding the frontage along the side line of a corner lot, the distance of the building line back from the street line shall be twenty percent of the average or normal depth of the lots having their front lines along such street frontage, but such distance back from the street line need not be more than forty feet. Where, in any portion of such street frontage, there are lots of markedly less depth than the normal, the City Planning Commission, in defining and applying this building line regulation, may, when in its opinion the general purpose and intent of this section will be better served thereby, divide such street frontage into sections for the application of such twenty percent building line requirement. For the purpose of this subsection, the term "lot" includes unimproved parcels in separate ownership and unimproved lots or parcels in subdivisions of land.

   (b)   In a U-3 District, along the side line of a corner lot the distance of the building line back from the street line shall be twenty percent of the average width of such lot, but such distance back from the street line need not be more than twenty feet.

(Ord. 1985-29. Passed 10-14-85.)

   In a U-3 District, every building erected shall have access to and/or front upon a public street.

(Ord. 1985-29. Passed 10-14-85.)

   Accessory buildings and uses customarily incidental to the principal use are permitted in a U-3 District, provided that they are located on the same lot or parcel of land with the main building or use to which they are accessory, and subject to the following specific limitations:

   (a)   Home Occupations. See Section 1195.06.

   (b)   Restaurants. In a U-3 District, a restaurant or public dining room may be located in an apartment hotel or in an apartment house as an accessory use.

(Ord. 1985-29. Passed 10-14-85; Ord. 1985-39. Passed 1-27-86.)

   In a U-3 District, all new buildings or additions, other than those permitted for Class U-1 and U-2 residence purposes, hereafter erected or permitted to be erected under this Zoning Code, shall have outer walls constructed of noncombustible material.

   The outer faces of outer walls of buildings in this District shall be constructed with a minimum four-inch face brick, stone, cast stone, precast concrete panel or architectural cast-in-place concrete of finish, glass, metal or other architectural panel approved by the Architectural Board of Review. Exposed masonry block and through-wall block construction is prohibited.

   The use of solid concrete veneer unit (split face brick) for alterations of existing buildings with suitable masonry walls may be permitted upon the approval of the Architectural Board of Review.

   No brick, cast stone or concrete veneer unit (split face brick) shall be larger than four inches in height.

(Ord. 1992-40. Passed 1-25-93.)

   In rear and side yards of a U-3 District adjoining any district other than another apartment district, the City Planning Commission shall require the installation of a six-foot high vision-impairing masonry wall of face brick or split face brick in order to create a buffer area where such other district adjoins or abuts a rear or side yard of this District.

(Ord. 1985-29. Passed 10-14-85.)

   (a)   Lot Areas; Setbacks; Improvements. In Subdistrict 1 areas, no building shall be erected on a lot less than three acres in area and less than 300 feet in average width.

   Any building erected on a lot in Subdistrict 1 shall be set back in accordance with U-1 District requirements. No building permit shall be issued for the construction of a building on a street where a storm sewer, sanitary sewer and water main have not all been installed or when all of such are not operative. All subdivisions must conform to Chapter 1105.

   (b)   Height Regulations. The height of any main or accessory building shall not exceed two stories or twenty-four feet, exclusive of a chimney or other permitted appurtenance located upon or constituted as an integral part of a main building.

   The provisions set forth in this subsection shall control and are in addition to all other applicable sections of this chapter.

(Ord. 1988-13. Passed 4-25-88.)