This manual is intended to guide developers, site planners, and builders in the design of residential developments for solar access. Planning for solar access means laying out buildings, roads, landscaping, and open space so that solar collectors, whether actually in place or merely planned for the future, can get direct sunlight to permit the use of solar energy for space heating, water heating, or air conditioning. Appendices: glossary, skyspace angles, shadow length tables and equation, and determining density. Extensive references. 120 charts and tables.