Rooms in the Governor's Hotel are rented and available to all players.
Noble Estates would, essentially, be free and owned exclusively by PCs among the Dementlieuse nobility. Given it will be the only type of player housing available, poor Arawn would soon have nothing but applications for new Dementlieuse noble PCs. This would also mean constant work for the devs. It is, by and far, Player Housing, and an exclusive one at that, which is why the idea is simply not feasible and in no way, or form, related to rooms at the Governor's Hotel.