I only just noticed this pic - I understand that the cellars under the T.A. are vast, extending the whole length of the building. I remember Spencer Cruickshank telling me he wanted to refurbish the cellars and run a disco there but the brewery owners were not interested.
Jules Drup, welcome to the forum. This picture is of the cellar of the Tredegar Arms pub. near the town clock, that is undergoing refurbishment The T.A. you are thinking of, is of the Territorial Army building in Park Place, which has long been demolished
Spencer Crookshank managed the TA. I heard recently that his daughter married David Morgan who worked for RTB then became chairman of Glamorgan CC then chairman of the MCC then the ICB. What a progression