Complimentary Initial Consultation & Project Evaluation By Appointment Only.   Mussman Design Associates is a full service interior design firm serving the San Francisco Bay Area since 1990 specializing in comprehensive space planning and layout, interior architectural detailing, project coordinating and construction detailing, kitchen and bath design, couture furnishings, window dressings and accessories, custom cabinetry, furniture design, lighting, audio plus an extensive network of professional trades people and resources.