The Local Government Act 2000 (UK) required local authorities to draw up Community Strategies (though it set no deadline and imposed no requirement to implement them). You can find out more in the Government guidance for local authorities. The big idea was to start integrating the many different plans and strategies for a locality under one umbrella, but the guidance (after some lobbying by sustainability activists) places strong emphasis on sustainable development as an overarching principle.
Paragraphs 9 - 11: Aims, Objectives (including contribution to the achievement of sustainable development) and four key components of Community Strategies (long-term vision, action plan, shared commitment and arrangements for monitoring) of the Introduction (to the above document) may be of particular interest to communities, community groups and sustainability activists.
The Government recommended that localities set up Local Strategic Partnerships to develop and manage the Community Strategy process.