4.702 One-Family ("A-21") District

  1. Purpose and Intent
    It is the purpose and intent of the One-Family (“A-21”) to provide a zone with a minimum lot size of one-half acre for semi-rural development of a one-family dwelling on each lot and accessory uses.  The minimum lot size of one-half acre may also be appropriate to maintain compatible lot sizes in developed areas, ensure compatibility with adjacent uses, or otherwise promote the public health, safety, morals or general welfare.
  2. Uses
    In the One-Family (“A-21”) District, no building or land shall be used and no building shall be hereafter erected, reconstructed, altered or enlarged, nor shall a Certificate of Occupancy be issued, except in accordance with the use tables in Chapter 4, Articles 6 and 8, and the supplemental standards of Chapter 5.
  3. Property Development Standards
    In the One-Family (“A-21”) District, the minimum dimension of lots and yards and the height of buildings shall be as shown in the accompanying table
One-Family (“A-21”) District
LotArea One-half acre (21,780 square feet) minimum (Sections 6.501 and 7.106)
LotWidth 85 feet minimum at building line
LotCoverage 30% maximum
Front Yard* 30 feet minimum
Rear Yard 10 feet minimum
Side Yard *
Interior lot
Corner lot**
10 feet minimum
15 feet minimum adjacent to side street and
10 feet minimum for interior lot line
Height 35 feet maximum (see ‘6.100 Height’)
Notes:
*See ( ‘6.101 Yards’ D) for front yard setback requirements.
**May be subject to projected front yard (Section 6.101F)

COMMENTARY:
Carports/porte cocheres –allowed in side, rear and front yard in certain circumstances. (See ‘5.301 Accessory Buildings on Residential Lots’ and ‘6.101 Yards’).
Fences –2 feet high in public open space easement, 8 feet high behind front yard. (See ‘5.305 Fences’ for fence requirements for fences allowed for residential dwellings
Facade – materials and appearance under Section ‘6.507 Single Family Residential Design Standards’).


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  1. Other Development Standards
    Development in the One-Family (“A-21”) District may be subject to a variety of general development standards in Chapter 6, and the following provisions:
    1. Signs. On-premises signs subject to the following:
      An unilluminated nameplate bearing the family name of the occupants residing in the residence not to exceed one square foot in area.
      An unilluminated sign for those uses allowed that are not residential.  The sign shall not exceed 30 square feet in area, shall be no higher than six feet above grade, and shall be placed a minimum of ten feet behind the property line.  Such sign shall not be placed within 20 feet of drives providing ingress and egress to the property.
    2. Parking. Two spaces per dwelling unit, located behind the front building line.  For nonresidential uses, see 6 ‘Development Standards’, Article 2. 
    3. Residential Design Standards.  See 6 ‘Development Standards’, Article 5. 
    4. Landscaping and Buffers.  Nonresidential uses may require landscaping or buffers.  See 6 ‘Development Standards’, Article 3. 
    5. Access through Residential Districts.  See ‘6.500 Access Through Residential Districts’.
    6. Reconstruction of Nonconforming Accessory Buildings.  A nonconforming accessory building that is damaged by fire, the elements, or other cause beyond the control of the owner may be repaired or reconstructed in the same rear and side yard setbacks provided the construction is limited to the identical footprint (replacement of the foundation is allowed); the building is the same design, height and roof pitch (use of different material is allowed) and the owner or an agent obtains a building permit to repair the structure within six months after the damage date.  The owner shall have the burden of proof to establish the damage date.
    7. Garage/Carport.  No more than one garage and one carport or porte cochere shall be allowed per residential unit on a single residential lot, unless the additional garages or porte cocheres are an integral part of the main residential structure with the same roofline and driveway as the residential structure.