The Auburn Valley Master Plan, prepared in 2011 for Delaware’s Department of Natural Resources and Environmental Control’s (DNREC) Division of Parks and Recreation, serves as the basis for the design and redevelopment of a former industrial site in Yorklyn, Del. The site went through several transitions as an active gristmill, sawmill, and papermill. When the National Vulcanized Fibre (NVF) Company mill closed in 2009, DNREC pursued discussions with developers and investors. A working group was formed to secure and gather information about the site. The master plan sets forth a vision to allow for mixed-use redevelopment of the property while preserving the scenic viewshed of the historic Auburn Heights mansion, addressing site contamination and flooding issues, providing quality recreation opportunities, and improving transportation in the area. The plan presents several options to renovate some of the historic buildings to accommodate commercial/retail businesses, provide new opportunities for the area to be revitalized into a vibrant community with an abundance of green space and respect for the surrounding area.