Leviticus 25:30-32

Young's Literal Translation

³⁰ and if it is not redeemed until the fulness to him of a perfect year, then hath the house which [is] in a walled city been established to extinction to the buyer of it, to his generations; it goeth not out in the jubilee;

³¹ and a house of the villages which have no wall round about, on the field of the country is reckoned; redemption is to it, and in the jubilee it goeth out.

³² `As to cities of the Levites -- houses of the cities of their possession -- redemption age-during is to the Levites;