The Martin Way Allotment Gardens Association is based in Raynes Park, London (SW20 9BS), just off Martin Way between Whatley Avenue and Bushey Road (A298).
The entrance to the west side is just before Merton Mansions in Martin Way and the east side entrance is directly opposite. There is no need to park on nearby roads, simply drive through the gates and park in one of the allotments car parks. There are three on the west side and one on the east side. A more detailed plan of the layout of the Martin Way allotments can be found here - plot map which shows the roads, plots, parking, etc. Kens shop is just inside the entrance on the west side.