A two hour consultation with David Vaughan, AIA licensed architect, 15+ years experience, will be spent at one meeting at a Marin County location to discuss your wishes for your space, and brainstorm for solutions. Beryl Vaughan, self-described "space re-newer" and color designer, will join you.  Ask a professional the real deal about getting building permit approval, general costs and other practical considerations to make those fantasy changes to your house.  Get solid advice from a professional.