Spawning houses made of pre-fabricated rooms?

Thanks for the reply!

I have been thinking of having it do the whole thing procedurally but decided to instead do it simple and just have standardized sizes of rooms (my pieces are 280 wide so it’d be 1x1 (280x280), 2x1 (560x280)) and so on and just manually set which sizes of rooms should be where until I have a floor in each child blueprint. Then have it use this “floor layout” for each floor and only really randomize how many floors and the pre-built interiors(+ exterior decoration) that fits each room as well as materials on walls and floors. This way it would be fast and easy to use but not too complicated, so little chance for weird stuff happening.

I have been checking out pretty much every house building system on the forum and marketplace and any other site I could find but failed to find anything that would fit what we need.
The biggest problem is that I need interiors, which instantaneously excludes like 95% of house systems.