And the latest listed building is….

(Photo: Sunil060902)… not actually in Wanstead, but close by.

It’s Redbridge Underground station, one of 16 given Grade II listed status by English Heritage, chosen for their importance to the development of the London Underground network. It’s one of a number of distinctive 1930s circular stations, designed by architect Charles Holden. (More on the station’s history at Wikipedia.)

Photo by Sunil060902, used under Creative Commons licence.