This guideline has been created to help food and construction industry personnel to identify and consider the main hygiene-related factors that need to be taken into account when designing, building and refurbishing food production premises. It draws on the combined expertise of food manufacturers, construction professionals, food factory service providers and insurers to provide a harmonised approach to factory design. Taking a systematic approach, the guideline considers a wide range of key factors including building siting and construction, segregation of work areas to control hazards, the flow of raw materials and product, and the movement and control of people. Contents include: Define project and business plan • Site location assessment and risk management philosophy • Determine process and mass flow • Determine the required level of segregation • Determine the equipment and factory layout • Estimate the size of factory required and consider new build or refurbishment alternatives