There's no apriori reason that the landed gentry should keep their homes without paying a land value tax that makes it not worth their while to keep them. This is the stuff revolutions are made of, when the larger outsider population collectively decides its had enough of landowner privilege. Landowners can go to outer space if they want private ownership of a frontier.

In (parts of) China, for example, land is leased to private parties (20-year and 70-year terms), not owned. https://www.forbes.com/sites/sarahsu/2017/03/21/good-news-fo...