The London Borough of Brent is a London borough in North-West London, UK and forms part of Outer London. The major area is Wembley. It borders Harrow to the north-west, Barnet to the north-east, Camden to the east and Ealing, Hammersmith & Fulham, and Kensington & Chelsea to the south, and Westminster to the southeast. Most of the eastern border is formed by the Roman road Watling Street, now the modern A5.