There are 100 Grade I listed buildings in Bristol, England according to Bristol City Council. The register includes many structures which for convenience are grouped together in the list below. In the United Kingdom, the term listed building refers to a building or other structure officially designated as being of special architectural, historical or cultural significance; Grade I structures are those considered to be "buildings of exceptional interest". Listing was begun by a provision in the Town and Country Planning Act 1947. Listing a building imposes severe restrictions on what the owner might wish to change or modify in the structure or its fittings. In England, the authority for listing under the Planning (Listed Buildings and Conservation Areas) Act 1990 rests with Historic England