Maybe ownership of 2 houses is an option, for increased maintenance fee of course, and perhaps some limitations.
City crafting fee for non residents is also an option.
Perhaps, wilderness houses can be limited to 1 advanced craft station, so person owning it can specialise in one thing and do it on the spot. Perhaps some extra price and conditions can be connected with building this as well.
Having friends is also an option. You bring your city friend some beer, and he returns the favor.
And of course all other social / economy mechanics. Trading...
One person being able to do absolutely everything is always a bad choice.