Subject: 10184/Amend-Res.Townhouse/Zero Lot Line Date: Tue, 3 Jan 1995 11:44:18 -0500 ORDINANCE NO. 10184 AN ORDINANCE TO AMEND ORDINANCE NO. 6958, AS AMENDED, KNOWN AS THE ZONING ORDINANCE, SO AS TO ADD ARTICLE VI, SECTIONS 160-166 TO INCORPORATE THE R-T/Z RESIDENTIAL TOWNHOUSE/ZERO LOT LINE ZONE. ____________________________ BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF CHATTANOOGA, TENNESSEE, That Ordinance No. 6958, as amended, the Zoning Ordinance, be and the same is hereby amended as follows: SECTION 1. That Article V be amended to add Sections 160-166 as follows: 09 160. R-T/Z RESIDENTIAL TOWNHOUSE/ZERO LOT LINE ZONE 161. Statement of Intent: It is the intent of this section to provide regulations for the development of townhouses (also called rowhouses and attached homes), single-family zero lot-line dwellings (also called patio homes), and/or mixed use moderate density residential development in a manner which is attractive, provides for efficient use of land, and is compatible with surrounding development. It is further intended that these regulations provide for standards which will foster compatibility between R-T/Z development and lower density, standard single-family uses. It is also intended that R-T/Z development be sold in "fee simple" to encourage owner occupancy. For purposes of the R-T/Z zone, the term "exterior street" refers to any public, dedicated and accepted street existing prior to the R-T/Z development, the term "interior street" refers to any street built as part of the R-T/Z development, both sides of which are zoned R-T/Z. 162. Permitted Uses: 1. Single-family detached dwellings (excluding factory manufactured homes constructed as a single,self-contained unit and mounted on a single chassis). 2. Townhouses. 3. Zero lot line single-family detached dwellings (excluding factory manufactured homes constructed as a single, self-contained unit and mounted on a single chassis). 4. Parks, playgrounds, schools, churches, and community buildings which are complimentary to the immediate neighborhood. 5. Golf courses except driving ranges, miniature courses and other similar commercial operations. 6. Accessory uses and buildings. 7. Home occupations. 8. Kindergartens, operated by governmental units or religious organizations. 9. Kindergartens, except those operated by governmental units or by religious organizations; except that such uses shall require a special permit under the terms of Article VIII of this Ordinance. 10. Day care centers, except that such uses shall require a special permit from the Board of Appeals under the terms of Article VIII of this Ordinance. 163. Height, Area and Building Regulations: 1. Maximum density shall not exceed eight (8) units per acre for attached or detached dwelling units. 2. Minimum lot width for zero lot line or single-family detached units shall be 35 feet. Minimum lot width for townhouses shall be 24 feet. 3. All buildings must set back at least 40 feet from any exterior dedicated public street. The setback may be reduced to 25 feet if berm and landscaping is provided along the exterior street(s). 4. No building shall be located less than twenty-five (25) feet from any boundary of the R-T/Z zone, except on side yards where an R-T/Z zone abuts R-3, R-4, O-1, or any commercial or industrial zone. 5. Front setback from any interior street shall be twenty-five (25) feet or ten (10) feet if rear parking and loading is provided. 6. Side yard setback for zero lot line units must be from zero (0) to a tenth of a foot or a minimum of ten (10) feet if buildings are to be separated over a tenth of a foot. The opposite side yard must be at least ten (10) feet and must be kept perpetually free of permanent obstructions (such as accessory buildings). 7. For zero lot line units, no windows, doors, or other openings are permitted on the zero lot line side of the structure. 8. Townhouse buildings (a continuous row of townhouse units) shall be separated by not less than forty (40) feet except fifteen (15) feet from end to end. 9. The rear yard setback for any detached unit shall be a minimum of twenty-five (25) feet. The setback is to be measured from the property line and not from any access drive or alley right-of-way. 10. Maximum height of buildings shall be thirty-five (35) feet or two and one-half stories. 11. Sidewalks, if provided, are to be built according to jurisdictional standards. 12. All property lines abutting R-1 zoned property must have a grass covered berm (height to be determining based on terrain conditions) with sight-obscuring landscaping subject to review and approval of a site specific landscape plan. Existing foliage and natural terrain may be considered in lieu of berm and landscaping if intent of this section is met. 13. Townhouse development which fronts on exterior public streets must have front yards which are at least 65% grass/landscaping with any driveway and/or sidewalk to be composed of concrete or pavers. Landscaping along all property lines fronting exterior streets must be provided subject to review and approval of a site specific landscape plan. 14. A site sketch plan shall be submitted with the rezoning application and shall show the following: a. Zoning of adjacent properties b. Number, location and size of lots c. Open space/recreation areas if provided d. Off-street parking e. Site access and preliminary street layout f. All buffer, landscape and screen areas including site specific landscape plan g. Acreage h. Approximate range of unit size 15. A preliminary subdivision plat must be approved prior to 3rd reading of the ordinance rezoning the property. 164. Off-Street Parking Regulations: 1. Off-street parking shall be provided on the same lot or on a lot adjacent to the structure it serves at a rate of two (2) spaces per dwelling unit. Units with four bedrooms or more shall be required to have three (3) parking spaces. 2. There shall be one (1) space for every three (3) seats in the main auditorium of churches and other public buildings. 165. Provision for Special Access and Utility Easements: Due to the special nature of these housing types, the Planning Commission or legislative body may insist on special access easements and other arrangements to provide for adequate servicing and maintenance of the structures even though such easements and provisions might not normally be specified in the Chattanooga Subdivision Ordinance. These easements and special covenants are to be shown on the subdivision plat at the time of its recording. In addition, deed restrictions or other provisions may be required to assure that any remodeling or reconstruction of destroyed units will be accomplished in a fashion which will be compatible with the remaining units. 166. Minimum Elevation Regulations: No residence or structure intended for human habitation shall be erected near a tributary of the Tennessee River unless its lowest habitable floor is at an elevation equal to or greater than the High Water Stage at the point of construction; provided, however, no residence or structure intended for habitation shall be erected near the Tennessee River unless its lowest habitable floor is a minimum of two (2) feet above the elevation of the High Water Stage at the point of construction. The minimum building site for any structure erected near a tributary of the Tennessee River shall be at an elevation which is not below the High Water Stage at the point of construction; provided, however, that the minimum building site for any structure erected near the Tennessee River shall be at an elevation which is a minimum of two (2) feet above the High Water Stage at the point of construction. No public or private driveway shall be below the High Water Stage. SECTION 2. Be IT FURTHER ORDAINED, That this Ordinance shall take effect two weeks from and after its passage, as required by law. PASSED on Third and Final Reading March 21, 1995. s/s_______________________________ CHAIRPERSON APPROVED: __X___ DISAPPROVED:_____ DATE:__________________ ___, 1995. s/s______________________________ MAYOR RHRH:meb