POLYGON ((-0.153916407053882 51.51293194377764, -0.153958141926836 51.51290409483698, -0.154069409357147 51.51317253815678, -0.153983867967788 51.51319272944866, -0.153941378231176 51.51317738861066, -0.153858586648486 51.51311916332446, -0.153916407053882 51.51293194377764))