Glenn Dale Hospital was a tuberculosis sanatorium and isolation hospital in Glenn Dale, Maryland.  The site was acquired by the Maryland National Capital Parks and Planning Corporation in 1994. Prior to this acquisition, the Maryland legislature passed a law restricting development of the 60-acre former hospital site to a Continuing Care Retirement Community (CCRC). 

The facility, consisting of 23 buildings on 215 acres, was built in 1934, closed in 1981 due to asbestos, and has been vacant since.  RM Sovich Architecture prepared a multi-phased (six) masterplan for an intergenerational health and wellness community totaling 750,000 square feet of new and existing program space. The proposed community supported independent living senior apartments, independent living senior cottages, assisted living, pharmacy, healthcare and medical offices, community recreational areas (fields and trails), market rate housing, and parking.