Planning staff recommended denial of a concept and development plan for a proposed subdivision on Maryville Pike that would create 259 lots—127 single-family units and 132 townhomes—on about 76.5 acres. A staff member (planning staff) told the agenda review that the plan requires a southbound left-turn lane at the property's boulevard entrance and that internal streets are proposed as public rights of way. The parcel contains two Planned Residential (PR) districts with preapproved densities: 70 acres approved historically for up to 4 dwelling units per acre (approved in 2002) and a 6.5-acre portion approved last year for up to 2 dwelling units per acre. Staff said the plan shows the 2-dwelling-unit-per-acre portion built at about 2.46 dwelling units per acre, exceeding the maximum allowed for that PR area and that the county code provides no mechanism to transfer density between separate PR districts on the site.