Topic summary
Built-up area
Extracted from the Wikipedia article Urban area.
United Kingdom
In 2013 the United Kingdom's Office for National Statistics (ONS) published 2011 Built-up Areas – Methodology and Guidance which sets out its definition of a built-up area (BUA) as an area of built-up land of at least 20 hectares (0.077 sq mi), separated from other settlements by at least 200 metres (660 ft). For 2011 census data there are 5,493 built-up areas, of which 501 are divided into built-up area sub-divisions (BUASD) for which data is also available. Each built-up area is named algorithmically, using Ordnance Survey place-name data.