Planning Policy Wales delivers land use planning policy for Wales and provides a framework for the effective preparation of local planning authorities’ development plans. This is supplemented by 21 topic based Technical Advice Notes (TANs). Technical Advice Note 5- Nature Conservation and Planning is a key TAN in relation to nature conservation and biodiversity.
Sites of Importance for Nature Conservation are an important element in many local authority planning regimes and cover significant areas of biodiversity priority habitats and species. Designation is based on objective scientific criteria that accord with the Wales wide guidelines. Identified sites are typically shown on the local development plan proposals map or constraints map.