Known issues we are currently working on. Houses with roofs at the moment are causing the placement checks to require 1 additional tile east/west. This should be resolved in patch 35. Tower wings currently when placed on the right side of a house can be within 4 tiles for bridging. However at the moment you cannot get a tower closer than 5 tiles on the right. Also the towers need to be placed last in this situation, as placing any house near a tower will have a 5 space buffer due to the wing. We are working on these issues and will post here when we have an estimated fix time.