I think of the project as a three dimensional jig-saw-puzzle including pieces like the furniture, fixtures and appliances.  At our first meeting we will discuss what spaces need to be altered or added. The layout of these items determines the most efficient size and shape of the space and points towards possible locations for windows and doorways.  The worst designs may look pretty, but no one can enjoy living in the space.  I have been in so many rooms that cost a fortune to build but did not function the way the homeowner planned.  The classic errors include family rooms with beautiful views of the yard but no one can comfortably see the big screen TV; or a master bedroom that did not have enough uninterrupted wall space to accommodate the homeowners king size bed.  My goal is to see the big picture without ignoring the little pieces.