PROPOSED REVISIONS IN SECTION 2 PURPOSE: Revision #1. Combines the previously proposed subgroups of 1) 40 to 50 percent slope, and 2) 50 or more percent slope into a single 40 or more percent slope subgroup. This revision will simplify the tables and remove any notion that development rights on any single parcel will be eliminated. Using a 0.2 dua density factor for the new 40% and above subgroup adds about 1,000 dwelling units to the overall allowed density within the total Hillside and Ridgetop Protection Area. The one unit per five acres also corresponds to the minimum lot size allowed for a plat that is exempt from the Knoxville-Knox County Subdivision Regulations. Revision #2. Clarifies the intent of the recommendations regarding density and land disturbance to describe that these factors will be used to determine an overall density or land disturbance allocation, or budget, that will be applied to proposed development as a whole, whether it is the creation of a new planned residential zone district or the approval of a development plan or a concept plan for a new subdivision. These revised factors are to be applied to overall development proposals and will not be applicable to individual lots unless that is part of the overall development proposal. Revision #3. Clarifies the use of this plan in the review of requests to change the zoning map and development plan/concept plan approval until such time that ordinances are adopted by the respective legislative bodies to codify into regulations the recommendations of the plan. This revision will reinforce the idea that plans are advisory in nature and propose recommendations for future actions, such as the codification of regulations through ordinances. Revision #4. current text. To correct one inadvertent use of the term "must" in the - 1 - Replace in Section 2 At Page 31 (In the shaded box) Characteristics of the Hillside and Ridgetop Protection Area . . ...... Within this area, most hillsides have a 15 to 40 percent slope while approximately 13 percent of the slopes are over 40 percent. . . . Table 2: Proposed Hillside and Ridgetop Protection Area Acreage by Percent of Slope Percent Slope Acres Percent of HRPA 0 - 15 38,024 29 15 - 25 43,424 33 25 - 40 33,034 25 40 or more 16,625 13 TOTAL 131,107 100 - 2 - Replace in Section 2 At Page 33 (Right Column) Density and Land Disturbance Guidelines As proposals for changes to the zoning map and development plans/concept plans are considered, the following factors are recommended to determine the overall allowable density for residential rezonings and the overall land disturbance allowable in new development or subdivisions for those portions of parcels that are within the Hillside and Ridgetop Protection Area. These factors should be codified as regulations in the future. The areas of the Growth Policy Plan referenced below are presented on page 18. TABLE 3: Residential Density and Land Disturbance Guidelines for Recommendations on Changes to the Zoning Map and Development Plan/Concept Plan Review within the Hillside and Ridgetop Protection Area that is within the Urban Growth and the Planned Growth Area Percent Recommended Recommended of Maximum Maximum Slope Density Factor* Land Disturbance Factor** 0 - 15 Knox County: 5 dua 100% City of Knoxville: 6 dua 15 - 25 2 dua 50% 25 - 40 0.5 dua 20% 40 or more 0.2 dua 10% Ridgetops*** *** *** dua: dwelling units per acre * These factors should be considered guidelines to determine an overall recommended residential density for requests for changes to the zoning map to planned residential (RP-1 in the city and PR in the county) zone districts that are considered by the Metropolitan Planning Commission prior to being considered by the appropriate legislative body. The resulting zone district development right would be considered a budget for dwelling units to be applied over the entire proposed development. ** Until such time as regulations are codified by the appropriate legislate body, these factors should be considered guidelines to determine an overall recommended land disturbance area for development plans and concept plans that are considered for approval by the Metropolitan Planning Commission. The overall land disturbance area would be considered a budget for land disturbance to be applied over the entire proposed development. *** Ridgetops are generally the more level areas on the highest elevations of a ridge. Because the shapes of Knox County ridges are so varied (see pages 8 - 9), the ridgetop area - 3 - should be determined on a case-by-case basis with each rezoning and related development proposal. - 4 - Replace in Section 2 At Page 36 (Left Column) Recommended Zoning Planned commercial zoning districts (PC, PC-1) must should be used for commercial projects when parcels are in or partially within the Hillside and Ridgetop Protection Areas. At Page 47 (Left Column) Residential Uses in the Agricultural Zone . . ...... The agricultural zone district should be amended to require use-on-review in permitting subdivisions in the Hillside and Ridgetop Protection Area, using the following standards: Table 4: Proposed Minimum Lot Size and Land Disturbance in the County's Agriculturally-Zoned Areas in the Hillside and Ridgetop Protection Area Percent Minimum Maximum Slope Lot Size* Land Disturbance Factor** 0 - 15 1 acre 100% 15 - 25 1 acre 50% 25 - 40 2 acres 20% 40 or more 5 acres 10% Ridgetops*** *** *** * All minimum lot sizes must meet septic tank drain field requirements of Knox County Health Department; occasionally a larger size area may be required. Under state law a drain field may not be created on a slope greater than 50 percent. ** These factors should be considered to determine an overall recommended land disturbance area for concept plans that are considered for approval by the Metropolitan Planning Commission. The overall land disturbance area would be considered a budget for land disturbance to be applied over the entire proposed development. *** Ridgetops are generally the more level areas on the highest elevations of a ridge. Because the shapes of Knox County ridges are so varied (see pages 8 - 9), the ridgetop area should be determined on a case-by-case basis with each concept plan proposal. - 5 -