Local planning authorities may identify non-designated heritage assets. These are buildings, monuments, sites, places, areas or landscapes identified as having a degree of significance meriting consideration in planning decisions but which are not formally designated heritage assets. In some areas, local authorities identify some non-designated heritage assets as ‘locally listed’. A substantial majority of buildings have little or no heritage significance and thus do not constitute heritage assets. Only a minority have enough heritage interest for their significance to be a material consideration in the planning process.