Cunningham Court W9 Timeline News and progress updates from Cunningham Court new development in W9 Post a new milestone Planning permission granted for: Erection of roof extension to provide a three bedroom self contained flat with roof terrace. Source: Westminster City Council... 15/07/2012 by Buildington Planning permission sought for: Erection of roof extension to provide a three bedroom self contained flat with roof terrace. Source: Westminster City Council weekly... 22/05/2012 by Buildington