Both regiments were reformed in the TA in 1947, 511 becoming 426 (Durham) Coast Regiment and 526 becoming 427 (Durham) Coast Regiment, both still based at West Hartlepool [REF].
Then, on 31 October 1956, 426 Regiment was converted to Royal Engineers (RE) as 336 (Durham Coast) Field Squadron, RE as part of 132 Field Engineer Regiment (formerly part of the Tyne Electrical Engineers).