Local spatial planning can utilise a range of development plan documents to deliver planned growth and sustainable development. These include Local Plans, Core Strategies, Allocations Plans and Area Action Plans. The SEA process enables assessment of development plan document policies and spatial allocations of proposed development where they exist. Strategic allocations may be included in Local Plans or Core Strategies but are expressed in more detail via Allocations and Area Action Plans. Wherever allocated sites to promote development and flexible use of land provide detail on form, scale, access and quantum of development, the SEA process will appraise them accordingly. Allocations can relate to, amongst other things, housing, green space, employment sites, waste and minerals.