This is Dulwich & Sydenham Hill Golf Club (clubhouse).

Something is wrong with the way in which the address 21 Croxted Road SE21 8SZ is mapped. It has to be distinguished from addresses in South Croxted Road. Often we get delivery drivers hunting in South Croxted Road because their satnavs have told them they are in Croxted Road. As a result we get deliveries for 21 Croxted Road and perhaps vice versa. Our postcode is SE21 8AZ.