The instanced housing will be available to everyone, though players of different factions will be restricted to different housing neighborhoods. Open-world housing will be limited, of course, but players will also be able to buy and sell the plots. Player city housing will feature a similar plot system that is administered by the owner of the city in question.
Above & Beyond Technologies has authored a new blog post explaining The Repopulation's housing systems in further detail. Read all about it at the game's official website.