Many of the collapsed buildings were schools and nurseries, leading to widespread criticism of local government's planning policies.

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"It is difficult to avoid the conclusion that this challenge is in reality an attack upon the planning merits of the decision of the council in granting planning permission... misplaced forensic criticism has been levelled at decisions made when no issue was taken at the time objections were made, " she said.

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Expect a lot of criticism of the bill's provisions which weaken local authorities' ability to extract "planning gains" from developers, under what are known as Section 106 Agreements.

BBC: Week ahead