This document provides details about designing a residential bathroom project. It discusses the work of an interior designer, principles of residential design, climatology, site location, building envelope, orientation, daylighting and ventilation, drainage systems, planning considerations, by-laws, and principles of planning. It also includes sections on the design concept, color wheel, Asian colors, color schemes, style, textures, bathroom design, elevations, and a thought process video. The document contains extensive information on designing all aspects of a residential bathroom project from conceptualization to implementation based on design principles.