John Gill Commentary Leviticus 25:31

"But the houses of the villages which have no wall round about them shall be reckoned with the fields of the country: they may be redeemed, and they shall go out in the jubilee." — Leviticus 25:31 (ASV)

But the houses of the villages, which have no walls round
about them
As there were many in the days of Joshua, the Scripture speaks of: the Jews suppose that such are meant, even though they were afterwards walled:

shall be counted as the fields of the country ;
and subject to the same law as they:

they may be redeemed ;
at any time before the year of jubilee, and if not, then

they shall go out in the jubilee ;
to the original owners of them, freely, as Jarchi says, without paying anything for them.