Greencastle offers affordable housing for seniors ages 55 and up. The community offers group activities, outings and services for its residents. The grounds are well-manicured and include a patio where residents can socialize. Inside, there are 75 apartments and a resourceful staff that is on call 24 hours a day. Greencastle is part of Lifelink, an organization that has been assisting families and older adults for over a century.