Small mission halls as offshoots of Bethel Apostolic Chapel, Ystalyfera were built in Lower Cwmtwrch and in Ystradowen, both named Bethel as its meaning was "House of God".
The end for Bethel Mission Hall, Lower Cwmtwrch came in late 1947, due to dwindling numbers, when it was closed and sold to the adjacent landowner, who bought it with the view of converting it into a bungalow.
The Llais newspaper had always included a round-up of happenings at local churches and chapels, even when these were not part of any particular story. Sometimes they advertised forthcoming events, and at other times who was preaching, or had preached there recently.
The South Wales Voice newspaper, DATE, carries an article on an event being held in Bethel Mission Hall, Lower Cwmtwrch:-
The South Wales Voice newspaper, 22nd November 1947, reports on the end of the Bethel Mission Hall, Lower Cwmtwrch, due to dwindling numbers:-
Sold - The "Bethel Fach," Bethel Road, where local members of the Apostolic Church assembled, was last week bought by Mr Tom Jenkins who lives in the adjoining building, with a view of transforming it into a bungalow. The chapel was built 20 years ago, but in the last few years has dwindled into a few members. It was recently decided to close the chapel.