Builders have their own sets of plans that they have had drawn and many times revised and improved.
Most of these plans are copyrighted and are not available for duplication unless that builders gives approval. These books will enable you to get some general idea of the type of home you are looking for. Many times these plans can be modified for the customer. The builder typically will purchase a set of plans for the homebuyer and have changes made accordingly. A production builder in the Hampton Roads market will usually build between 50 and 250 homes per year.