The Hermon Welsh Baptist congregation in Valley was formed in 1868. The present building is dated 1870 and is a very late example of this type of hipped-roof, square plan chapel. The windows are of domestic type and there is a chapel house at the rear. Hermon was still in use as a chapel use when photographed on 15 April 2003.

RCAHMW January 2008.

A planning application was submitted to Anlgesey Council in May 2018 requesting permission to convert the chapel for domestic use.
Source: 'Chapel home transformation dream set to be sunk by flood fears' Daily Post, 2nd May 2018.
RCAHMW 18th July 2018.