Greater London has a clear area defined [0], but the boundaries themselves were politically set. Look at say Surbiton, you contiguous sets of houses, some in Gr

Greater London has a clear area defined [0], but the boundaries themselves were politically set. Look at say Surbiton, you contiguous sets of houses, some in Greater London, some not in Greater London (Say Beechwood Close). In fact I think this [1] house the Greater London boundary runs down the party wall between the two sides of the same semi. Jay Forman has a 9 minute video on the subject [2] The contiguous Greater London Built Up Area [3] extends well beyond the boundary of Greater London (Bracknell, Gravesend, Harlow), yet doesn't include parts of Greater London (New Addington for example) The London Commuter Belt is somewhat woolly [4], but certainly includes places like Slough and Maidenhead, Sevenoaks and Tunbridge Wells, Harlow and Southend. Significant numbers of people additionally commute on high frequency (4tph or more) trains from places like Oxford, Milton Keynes, Basingstoke, Ashford into Zone 1 45 minutes or less. [0] https://en.wikipedia.org/wiki/Greater_London https://en.wikipedia.org/wiki/Greater_London [1] https://goo.gl/maps/2Zh9tuQnQoPyrnjC7 https://goo.gl/maps/2Zh9tuQnQoPyrnjC7 [2] https://www.youtube.com/watch?v=UAusbJmRB0c https://www.youtube.com/watch?v=UAusbJmRB0c [3] https://en.wikipedia.org/wiki/Greater_London_Built-up_Area https://en.wikipedia.org/wiki/Greater_London_Built-up_Area [4] https://en.wikipedia.org/wiki/London_metropolitan_area https://en.wikipedia.org/wiki/London_metropolitan_area