The Green Book (SPAB)

The Green Book, published by the Society for the Protection of Ancient Buildings (SPAB), is a practical guide for preserving and repairing historic buildings. It emphasizes minimal intervention, using sympathetic methods and materials to maintain the building’s character and integrity. The guidance encourages respecting original craftsmanship while ensuring safety and longevity. Essentially, it promotes careful restoration rather than replacement, helping owners and craftsmen preserve the historic value and authenticity of architectural heritage for future generations.