1. Meeting all applicable requirements of the Knox County Health Department.
2. Provision of street names which are consistent with the Uniform Street Naming and Addressing System within Knox County (County Ord. 91-1-102).
3. Placing a note on the final plat that all structures will have to be located at least 50' from the top of the sinkholes (closed contour areas) identified on the plat. Building construction within the 50' setback may be permitted if a geotechnical study prepared by a registered engineer states that building within the 50' sinkhole buffer is acceptable and the study is approved by the Knox County Department of Engineering and Public Works. The geotechnical study must be completed prior to final plat approval for any lots that do not have a building area outside of the 50' setback area. A 5' drainage easement extending outside of the uppermost closed contour is required. Construction is not permitted within the hatchered contour area of the sinkhole or the drainage easement. Engineered footings may be required for any structures within the 50' sinkhole buffer.
4. Meeting all applicable requirements and obtaining all required permits from the Tennessee Department of Environment and Conservation for any alteration to the sinkholes.
5. Revising the concept plan to provide right-of-way for the turnaround at the western end of Road C (stub-out street to adjoining property) subject to approval of the Knox County Department of Engineering and Public Works.
6. The final plat shall include a notation that the western end of Road C is designed as a stub-out street that will extend into the adjoining property if it is developed as a subdivision. At a minimum the notation must be identified on the plat at the street ending.
7. Prior to opening Road C for public use, a sign, at least three square feet in area, shall be placed at the end of the street identifying that this street may be extended as a through street in the future. The sign specifics (wording, materials and size) are subject to approval by the Knox County Department of Engineering and Public Works.
8. At the design plan stage of the development, providing details for the boulevard design of Road A from the entrance to the intersection with Road B, subject to approval by the Knox County Department of Engineering and Public Works.
9. Installing the recommended improvements from the Traffic Impact Study including the improvements at Chapman Highway and Highland View Rd. as identified in the Planning Commission Staff's comment letter dated October 27, 2008. The design details and timing of installation of improvements to be determined and approved by the Knox County Department of Engineering and Public Works at the design plan stage of the subdivision.
10. Site grading for access to each lot shall be confined to the specific lot unless an off-site grading easement is obtained. Driveways shall not exceed a maximum grade of 20%.
11. The design plan for the subdivision must address permanent stabilization of the graded slope in the area of Lots 52, 53 and the common area in between.
12. Meeting all applicable requirements of the Knox County Department of Engineering and Public Works.
13. Prior to certification of the final plat for the subdivision, establishing a property owners association that will be responsible for maintenance of the common area, recreational amenities and drainage system.
14. A final plat application based on this concept plan will not be accepted for review by the MPC until certification of design plan approval has been submitted to the MPC staff.

Staff Recommendation

APPROVE variances 1-3 because the site's existing access and topography restricts compliance with the Subdivision Regulations, and the proposed variances will not create a traffic hazard.

APPROVE the Concept Plan subject to 14 conditions

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1. Meeting all applicable requirements of the Knox County Health Department.
2. Provision of street names which are consistent with the Uniform Street Naming and Addressing System within Knox County (County Ord. 91-1-102).
3. Placing a note on the final plat that all structures will have to be located at least 50' from the top of the sinkholes (closed contour areas) identified on the plat. Building construction within the 50' setback may be permitted if a geotechnical study prepared by a registered engineer states that building within the 50' sinkhole buffer is acceptable and the study is approved by the Knox County Department of Engineering and Public Works. The geotechnical study must be completed prior to final plat approval for any lots that do not have a building area outside of the 50' setback area. A 5' drainage easement extending outside of the uppermost closed contour is required. Construction is not permitted within the hatchered contour area of the sinkhole or the drainage easement. Engineered footings may be required for any structures within the 50' sinkhole buffer.
4. Meeting all applicable requirements and obtaining all required permits from the Tennessee Department of Environment and Conservation for any alteration to the sinkholes.
5. Revising the concept plan to provide right-of-way for the turnaround at the western end of Road C (stub-out street to adjoining property) subject to approval of the Knox County Department of Engineering and Public Works.
6. The final plat shall include a notation that the western end of Road C is designed as a stub-out street that will extend into the adjoining property if it is developed as a subdivision. At a minimum the notation must be identified on the plat at the street ending.
7. Prior to opening Road C for public use, a sign, at least three square feet in area, shall be placed at the end of the street identifying that this street may be extended as a through street in the future. The sign specifics (wording, materials and size) are subject to approval by the Knox County Department of Engineering and Public Works.
8. At the design plan stage of the development, providing details for the boulevard design of Road A from the entrance to the intersection with Road B, subject to approval by the Knox County Department of Engineering and Public Works.
9. Installing the recommended improvements from the Traffic Impact Study including the improvements at Chapman Highway and Highland View Rd. as identified in the Planning Commission Staff's comment letter dated October 27, 2008. The design details and timing of installation of improvements to be determined and approved by the Knox County Department of Engineering and Public Works at the design plan stage of the subdivision.
10. Site grading for access to each lot shall be confined to the specific lot unless an off-site grading easement is obtained. Driveways shall not exceed a maximum grade of 20%.
11. The design plan for the subdivision must address permanent stabilization of the graded slope in the area of Lots 52, 53 and the common area in between.
12. Meeting all applicable requirements of the Knox County Department of Engineering and Public Works.
13. Prior to certification of the final plat for the subdivision, establishing a property owners association that will be responsible for maintenance of the common area, recreational amenities and drainage system.
14. A final plat application based on this concept plan will not be accepted for review by the MPC until certification of design plan approval has been submitted to the MPC staff.

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Disposition Summary

APPROVE variances 1-3 because the site's existing access and topography restricts compliance with the Subdivision Regulations, and the proposed variances will not create a traffic hazard.

APPROVE the Concept Plan subject to 14 conditions

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Details of Action

1. Meeting all applicable requirements of the Knox County Health Department.
2. Provision of street names which are consistent with the Uniform Street Naming and Addressing System within Knox County (County Ord. 91-1-102).
3. Placing a note on the final plat that all structures will have to be located at least 50' from the top of the sinkholes (closed contour areas) identified on the plat. Building construction within the 50' setback may be permitted if a geotechnical study prepared by a registered engineer states that building within the 50' sinkhole buffer is acceptable and the study is approved by the Knox County Department of Engineering and Public Works. The geotechnical study must be completed prior to final plat approval for any lots that do not have a building area outside of the 50' setback area. A 5' drainage easement extending outside of the uppermost closed contour is required. Construction is not permitted within the hatchered contour area of the sinkhole or the drainage easement. Engineered footings may be required for any structures within the 50' sinkhole buffer.
4. Meeting all applicable requirements and obtaining all required permits from the Tennessee Department of Environment and Conservation for any alteration to the sinkholes.
5. Revising the concept plan to provide right-of-way for the turnaround at the western end of Road C (stub-out street to adjoining property) subject to approval of the Knox County Department of Engineering and Public Works.
6. The final plat shall include a notation that the western end of Road C is designed as a stub-out street that will extend into the adjoining property if it is developed as a subdivision. At a minimum the notation must be identified on the plat at the street ending.
7. Prior to opening Road C for public use, a sign, at least three square feet in area, shall be placed at the end of the street identifying that this street may be extended as a through street in the future. The sign specifics (wording, materials and size) are subject to approval by the Knox County Department of Engineering and Public Works.
8. At the design plan stage of the development, providing details for the boulevard design of Road A from the entrance to the intersection with Road B, subject to approval by the Knox County Department of Engineering and Public Works.
9. Installing the recommended improvements from the Traffic Impact Study including the improvements at Chapman Highway and Highland View Rd. as identified in the Planning Commission Staff's comment letter dated October 27, 2008. The design details and timing of installation of improvements to be determined and approved by the Knox County Department of Engineering and Public Works at the design plan stage of the subdivision.
10. Site grading for access to each lot shall be confined to the specific lot unless an off-site grading easement is obtained. Driveways shall not exceed a maximum grade of 20%.
11. The design plan for the subdivision must address permanent stabilization of the graded slope in the area of Lots 52, 53 and the common area in between.
12. Meeting all applicable requirements of the Knox County Department of Engineering and Public Works.
13. Prior to certification of the final plat for the subdivision, establishing a property owners association that will be responsible for maintenance of the common area, recreational amenities and drainage system.
14. A final plat application based on this concept plan will not be accepted for review by the MPC until certification of design plan approval has been submitted to the MPC staff.