The route starts on the A238 on the Raynes Park gyratory system (some of which used to be the western end of the B235). It then goes northeastwards to Wimbledon where it crosses the A219 via a short multiplex east between two adjacent sets of traffic lights. However, through traffic cannot actually do this and has to use a parallel unclassified road instead.
The road then proceeds along Alexandra Road before turning right into Gap Road via two mini-roundabouts. It crosses the railway line and then the A218 before continuing along Plough Lane past Wimbledon Stadium. It turns into Summerstown via another mini-roundabout before bearing right to end at another mini-roundabout on the A217.