Principles of conservation and sustainability are easily married but often at odds for architects under increasing pressure to navigate the energy needs of older buildings. By incorporating UK and international case studies together with more theoretical essays the book seeks to identify overlaps in the interests of energy and building conservation. The varied expertise of the contributors; architects, surveyors, consultants and academics, demonstrate the use of qualitative and quantitative frames of reference. The second part of the book showcases sustainable domestic and non-domestic heritage projects, translating the challenges of the preceding research into varied methods that practitioners can use to question and review their everyday work. The book will be appeal to all architects, building professionals and designers working with traditional buildings and will enhance readers’ ambitions, so that they feel equipped and inspired to work with old buildings sensitively, creatively and sustainably.