Pontsticill Junction Signal Box is an early Great Western Railway design, possibly a type 8 dating from the 1920s. It is a two storey structure of stone-to-floor construction under a pitched slated roof and stands at Pontsticill Railway Station (nprn 91523) on the Brecon Mountain Railway (nprn 309824) where it is used as guest accommodation.

B.A.Malaws, RCAHMW, 09 December 2016.