Fitzalan Street London SE11 6QU Lambeth Walk Doorstep Green | Lambeth CouncilLambeth Walk Doorstep Green is an area of open space surrounded by high-density social and public housing, built on land left behind by the demolition of old housing in the 1970s.Lambeth Walk Doorstep Green is an area of open space surrounded by high-density social and public housing, built on land left behind by the demolition of old housing in the 1970s. In 2003 a partnership of residents and Lambeth Council, with support from https://beta.lambeth.gov.uk/parks/lambeth-walk-doorstep-green