Wandle | 6,034 followers on LinkedIn. Wandle Housing Association - We support people, across south London, who need a home. | Wandle was formed in 1967, originally founded as the Merton Housing Trust, by a group of local people who were concerned about homelessness. Over 50 years on, we have grown into an organisation with over 7,500 homes across 9 south London boroughs. Our role as a landlord goes way beyond bricks and mortar.