Former housing minister Nick Raynsford has called for urgent reform of the planning system to stop “slums” being created under the government’s expansion of permitted development rights.

The former Labour MP and deputy chairman of Crossrail was launching an update to the 2017 review of the planning system which he carried out for the Town and Country Planning Association (TCPA).

None of the problems identified then had been addressed, he said, calling for the immediate restriction of permitted development rules (PDR).

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