age-in-place
adj.— «Like Mrs. Kilgour, Mrs. Stechyshyn has made what is known as an “age-in-place condominium” her choice of home. Hearthstone and the Village by the Arboretum are the first wave of a new form of real estate that not only provides home ownership but also an à la carte menu of support services designed to allow seniors to remain in their own homes for the rest of their lives.» —“Home ownership leads to lifestyle options” by Terrence Belford Globe and Mail (Toronto, Canada) Sept. 23, 2006. (source: Double-Tongued Dictionary)
Thas been a well-known term in gerontology books and articles, but usually in the form of “aging-in-place.” A quick check of amazon.com finds several uses in book titles and summaries, with earliest there being:
Aging-In-Place: Five Housing Alternatives for the Elderly (Architecture Series–Bibliography, a-1490) by Patricia Baron Pollak (Paperback – Nov 1985)
Aging in Place: Supporting the Frail Elderly in Residential Environments (Professional Books on Aging) by David Tilson (Hardcover – Jan 1990)