31 However, houses in unwalled villages are treated the same as fields. They can be redeemed and have to be returned at the Jubilee. 32 "As to the Levitical cities, houses in the cities owned by the Levites are always subject to redemption. 33 Levitical property is always redeemable if it is sold in a town that they hold and reverts to them in the Jubilee, because the houses in the towns of the Levites are their property among the People of Israel. 34 The pastures belonging to their cities may not be sold; they are their permanent possession.

Matthew Henry's Commentary on Leviticus 25:31-34

Commentary on Leviticus 25:23-34

(Read Leviticus 25:23-34)

If the land were not redeemed before the year of jubilee, it then returned to him that sold or mortgaged it. This was a figure of the free grace of God in Christ; by which, and not by any price or merit of our own, we are restored to the favour of God. Houses in walled cities were more the fruits of their own industry than land in the country, which was the direct gift of God's bounty; therefore if a man sold a house in a city, he might redeem it only within a year after the sale. This encouraged strangers and proselytes to come and settle among them.