Minister says there was error when Manningtree station car park extension was approved under last government

Campaigners have celebrated an “important victory” in a closely watched case that will determine whether the government will enforce new legislation aimed at protecting national parks and landscapes in England.

Dedham Vale is a designated “national landscape” on the border of Essex and Suffolk, home to increasingly rare species including hazel dormice and hedgehogs. Within it is Manningtree station, where the train operator Greater Anglia built an extension to the car park to cope with increased traffic.