I looked at those and I'm underwhelmed. I don't want roofs in the way, blocking the view, and figures can't stand on them anyway (unless you attach the separate one-figure stands) so it's not like it's usable space for rooftop combats. Meanwhile, where the dungeons had simple pre-attached walls and floors, the buildings have separate walls, floors, and even separate corner posts, so it seems like it will take a lot more time to put together.
Still, I'm keeping an eye on it because I would not be surprised to see some good stuff come up in the stretch goals....