Depending on the size of the settlement, it could be a Villa for the Magistrate, for the Proconsul etc.
I know it lets you recruit free-slaves as poorly armed militia and Diplomats, but for similar money and time you may as well buy a military barracks of sorts. How many of these building do you really need?
The Romani start off with ample sources for Diplomats and free-slaves to begin with.
So why bother with building anymore villas anywhere else anyway?
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