The intent of this Article is to provide, with the granting of a special use, a voluntary and alternate zoning procedure in the "R-1" and "R-2" residential zone districts, to permit flexibility in building types and arrangements that would not be possible under the strict application of the zoning district, encourage a creative approach to the use of land and related physical facilities that result in better design to preserve existing site topography, major tree cover and natural water features on and adjacent to the development and to contribute to the enhancement of the City's urban design with attention to abutting neighborhoods and roadway systems.

This district is intended for attached single-family structures separated into two (2) owner-occupied living units. They include common wall construction, individual garages, private yards, landscaped common areas, and homeownership is required.

Maintenance of the public and private outdoor areas is provided by a property management organization.

This type of development shall not be permitted within a development previously approved for detached single-family dwellings.

The mean average of the unit lots of the development will be no less than 1 acre in "R-1" and 1/2, acre in "R-2." Common ground can be added to affect the average. Roads and other similar facilities can be considered common ground for the purposes of calculating density.

Single-family attached dwellings shall not form long unbroken lines of row housing. Moreover, no more than two (2) contiguous single-family attached dwellings shall be built with the same front line. The required difference in front lines shall be a minimum of three (3) feet. It is preferred that the dwellings be arranged in groupings to allow for more efficient use of land and provide for more open space.

Sanitary sewers are required and shall be in accordance with standards no less than the provisions required by the ordinances of the City of Byrnes Mill.

Sidewalks are required and shall be in accordance with all existing requirements and codes of the City of Byrnes Mill.

Street lights shall be required and begin at the development entrance, and be spaced no more than every four hundred (400) feet.

The use of detached accessory buildings is not permitted.

Off street parking space shall be provided in accordance with the requirements for specific uses set forth in Article XVIII, Chapter 400, of the Code of Ordinances, Off-Street Parking And Loading Requirements.

Acceptable provisions shall be made on any plan or plat to provide for traffic control for entrance to and exit from said development.

Acceptable provisions shall be made on any plan or plat to provide a twenty-foot buffer around the perimeter of the development.

All standards as set forth in Article II, Chapter 405, Subdivision Regulations, shall apply.

All regulations of the City of Byrnes Mill or all ordinances with respect to the City of Byrnes Mill concerning bonding requirements and escrow requirements shall be met in this regard.

Minimum Lot Size.

Building height: thirty five (35) feet.

Lot width (road frontage): one hundred (100) feet per structure.

Setbacks.

A preliminary plan should be presented to the planning and zoning board. This preliminary plan must show proposed lots, lot lines, lot sizes, roads and road sizes and reasonable access to adequately sized (minimum 18 feet) paved Byrnes Mill or Jefferson County maintained public road. Proposed access to water and sewer lines should also be shown.

The preliminary plan should also show the topography of the land to be developed with an eye toward preserving existing site topography such as major tree cover and natural water features.

Once the preliminary plan is approved, the developer may submit a comprehensive development plan. Approval of the preliminary plan does not guarantee approval of the comprehensive development plan.