The layouts of the homes cannot be modified, unless otherwise specified (Merlin). The homes are designed as a system. A simple wall change effects the heating/cooling, plumbing, and electrical, as well as building codes, city plan review, etc.  This can greatly increase the cost of your home and the time it takes us to build it. Upgrades are available at an additional cost. Items such as porch roofs, detached garages and garden sheds can be added to your order.