The Living Building Challenge (LBC) can be applied to any building project, including historic renovation and new construction. Charley Stevenson and John Rahill will compare and contrast the LBC renovation of an 18th century plank building to the design and construction of several new LBC buildings.  By examining the three most challenging petals (water, energy and materials) they will illuminate the benefits of and the obstacles to LBC compliance.  Particular attention will be paid to the balance of envelope performance and renewable energy, and to the palette of materials that meet the LBC Red List.