Walthamstow is a town within the London Borough of Waltham Forest in east London. The town borders Chingford to the north, Snaresbrook and South Woodford to the east, Leyton and Leytonstone to the south, and Tottenham to the west. From Wikipedia
London Fire Brigade deploys extensive resources as the blaze spreads to roof terrace and duplex flat; cause remains under investigation.