Leviticus 25:30-31

30But if it is not bought back within a year, the sale of the house within the walled town cannot be reversed. It will become the permanent property of the buyer. It will not be returned to the original owner in the Year of Jubilee.

31But a house in a village—a settlement without fortified walls—will be treated like property in the countryside. Such a house may be bought back at any time, and it must be returned to the original owner in the Year of Jubilee.