The B471 was a short rural B-road in south Buckinghamshire, acting as a western bypass to Uxbridge.
The road started on the then-A332 (present A4007) in Iver Heath. It headed north along Church Road through largely open countryside and ended on the A40 on the edge of the village of Denham.
The road was quickly upgraded to a southern extension of the A412 (which originally ended at Denham). Later still, the northernmost section of the ex-B471 was severed by the new M40. The A412 was rerouted to the east to serve junction 1 of the motorway and the old B471, Southlands Road, now goes nowhere.