

Today, it is also potentially a lifeline. After it was decommissioned in 1992, the Parrishes bought back the bunker – for more than 20 years, it has been a tourist attraction and a sleepover location for Boy Scouts. Situated below an inconspicuous bungalow in Brentwood, Essex, the Kelvedon Hatch bunker was built on Parrish’s grandfather’s land in the 1950s and maintained as secret regional government headquarters throughout the cold war.

Michael Parrish has a “wedding guest list” of people he will allow into his three-level, 125ft (38 metre)-deep concrete bunker in the event of a nuclear attack.
