Can rooms be added on later to an American Custom Dollhouses™ dollhouse?

Yes. An American Custom Dollhouses™ dollhouse can be created in a size that you like now, and then added on to later. They are made up of Themed Modular Dollhouse Units that may be ordered all at once, or one at a time. Each is sized to be used individually or to fit together in combination with other Modular Dollhouse Units to create a dollhouse that can grow or change to fit your needs.