The London Borough of Bexley is a London Borough in south east London . The London Borough of Bexley lies to the south east of Greater London , one of those boroughs referred to as Outer London . It has common borders with the London Borough of Bromley to the south , the London Borough of Greenwich to the west and the River Thames is the northern boundary with the London Borough of Havering and the London Borough of Barking and Dagenham .