Subject(s): Ideas and Beginings -- Planning and urban change -- Town planning 1890-1914 -- Urban policy -- Urban growth -- Planned redevelopment -- Widening conceptions and policy shifts, 1914-39 -- balanced regional development -- New orthodoxy of planning 1939-52 -- Post war planning agenda -- Adjustments and new agendas: changing planning system, 1952-74 -- Affluent society and planning -- Physical planning system -- Adjustments and new agendas: strategic polices 1952-74 -- Planned decentralization -- Changing physical planning system -- Specific polices, 1974-90 -- Regenerating the urban cores -- Regional imbalance -- Decentralization after the new towns -- Post-Thatcher era -- Impact of planning in 1945 and future -- Spatial impacts of planning -- Economic and social impacts