Williams, the managing director of a surveying practice, has written the second edition of this manual for building extensions to incorporate new amendments to Document L1B concerning fuel and power conservation. This practical guide to altering or extending properties offers plenty of useful information on building plans and blueprints, the Party Wall Act and how to approach a city planner or council with a construction proposal. Designed for both new builders and established contractors who need updated information on new regulations, this book also discusses Computer Aided Design and how it has revolutionized the construction industry. Annotation ©2008 Book News, Inc., Portland, OR (booknews.com)