The A2022 is a non-primary road in England. It runs south-west into the foothills of the North Downs from West Wickham in the London borough of Bromley through Selsdon, Sanderstead, Addington, Purley, the Woodcote part of that town, Banstead in Surrey and Epsom Downs through which it descends to a similar altitude as at its beginning to end at Epsom also in Surrey.
The A2022 starts in West Wickham in the London Borough of Bromley at a roundabout with the A232 and a minor road, of which it acts as a continuation, as Addington Road 1 mile (1.6 km) before entering the London Borough of Croydon. As it enters linear Addington Village it runs as Kent Gate Way and passes Addington Village station on the Croydon Tramlink. It then crosses the tramlink and a roundabout with the A212. It runs as Selsdon Park Road past Forestdale, Selsdon and Selsdon, where it again becomes Addington Road as the elevated district's only A-road, passing Selsdon Community Centre and heads into Sanderstead past its common at 175m AOD (an overall high point), before coming to a roundabout with the B269. The A2022 becomes Rectory Park, and then Mitchley Avenue, where it passes near Riddlesdown railway station, Downs Court Road as it comes into Purley and it stops at a T-Junction with the A22, 300m from Purley Cross and Purley railway station to which it has its own continuation Approach Road leading to a station drop-off apron.