BDM01 A to Z of Essential Principles for the protection of buildings is an orderly recommendation to investors, on behalf of insurers, not to design and build solely down to the ‘life safety before collapse’ objective on the assumption that the project is a ‘common building situation’. Instead, to define and insist upon the resilience their investment requires, beyond statutory guidance or Building Regulations, it calls for resilient construction innovation to improve health and life safety with measures anticipating likely events involving fire and water.