For the 55 years that Tim Fox has worshipped at St Peter-on-the-Wall, his only neighbours have been a farm and a birdwatchers’ shelter. Now, the tranquil surroundings of the salt marsh and the Essex sea wall at Bradwell-on-Sea are threatened by a new arrival: a sprawling nuclear power station, Bradwell B. If all goes to plan, the Grade I-listed St Peter-on-the-Wall, built in an abandoned Roman fort in about 660 during the Saxon settlement of.