A must-have primer for homeowners and professionals, this impressive book presents the first comprehensive survey of its kind on how to achieve truly compatible, stylistically resonant additions and renovations. From exploring "How Do Houses Grow?" to "Getting the Details Right," it guides readers through typical projects and issues, such as finding more space within an existing footprint or blending in new windows or dormers without destroying historic character. The authors' expert perspective on dealing with historic buildings brings new ideas on design as well as problem-solving technologies, like compact water heaters. Also included is advice on meshing sustainable building practices, such as geothermal heating, with an already built house (the greenest house there is). Richly illustrated with color photos, plans, and drawings from nationally recognized architects, this book shares analysis and experience from two of the nation's most respected old-house professionals.