Remove the baking pans to a wire rack and don't disturb the gingerbread houses pieces. Let them cool completely before removing. It's a good idea to let baked gingerbread house pieces "cure" or temper for a day to make sure they are hard enough to stand assembly. If they become too soggy because of high humidity or cooking steam, recrisp them for a few minutes and let them cool before assembling.
Now it's time to assemble and decorate the gingerbread house.