The A236 is an A road in South London. It runs from the Croydon Flyover in Central Croydon to the A24 at Collier's Wood. The A236 road travels across the London Borough of Merton and the London Borough of Croydon. It's the primary road that passes through Mitcham Common. It also is the road on the one-way system in the town centre of Mitcham. In Old Town the road is part of a 3-lane dual carriageway.