Spa Green Estate between Rosebery Avenue and St John St in Clerkenwell, London EC1, England, is the most complete post-war realisation of a 1930s radical plan for social regeneration through Modernist architecture. Conceived as public housing, it is now a mixed community of private owners and council tenants, run by a resident-elected management organization. In 1998 this work by the architect Berthold Lubetkin received a Grade II* listing (the grade higher than II) for its architectural significance, and the major 2008 restoration brought back the original colour scheme, which recalls Lubetkin's contacts with Russian Constructivism.