Town and country planning – Permission for development. The claimant Lee Valley Regional Park Authority challenged the defendant local planning authority's decision to grant the interested party planning permission. The Administrative Court, in allowing the application, accepted the claimant's submissions that the authority had misinterpreted Green Belt policy in the National Planning Policy Framework in an unlawful manner, particularly with reference to the concepts of openness and previously developed land. Further, the development had not been in accord with the development plan.