- Knoxville's Community Development Corporation, commonly known as KCDC, is the housing authority and redevelopment agency for Knoxville. Since 1936, KCDC has been dedicated to enhancing the quality of life for the citizens of Knoxville. KCDC continues to keep the promise....... Special Announcements Information on the Historic Market Square Redevelopment and Urban Renewal Plan Nine Counties One ...www.kcdc.org