The Towne Center redevelopment shall be designed and planned as a single development according to a General Development ("GDP") Plan, including designation and layout of all proposed uses, site landscaping and buffer areas, building design, on-site parking and access. The redevelopment shall be designed with a common architectural theme which shall be subject to site plan approval by the Township Planning Board. The architectural theme shall reflect buildings, signing, fencing, lighting, paving, curbing, landscaping and other similar and related physical features.