Honestly it depends on how well you could think of a theme and purpose for the character and house to fit into your town.
Like me, for example, I want to add a second house and have it be like a haunted castle tucked away in the little skinny bit of land caused by a cliff waterfall really close to the bottom of the map. Buuuut I'm not so sure if a haunted castle has any place in a winter-themed town. So idk what to do.
It depends on what you think will work for your town.