freehold
noun [ C ] UK uk/ˈfriː.həʊld/ us/ˈfriː.hoʊld/
（建筑物或土地的）自由保有权，终身保有权
the legal right to own and use a building or piece of land for an unlimited time
Who owns the freehold of/on the property? 谁拥有这一房产的终身保有权？
Compare: leasehold