A small rectangular building is shown on an aerial photograph dating May 1946. The building measures approximately 6m x 4m and is likely to have been associated with the observation post for the firing range to the north (a generator house or a small toilet block for the BCF huts and observation positions?).

Sources include:
RAF aerial Photography 106G UK1450-42122, 1 May 1946
RAF aerial Photography 541 116-36921, 20 July 1948

Maritime Officer, RCAHMW, March 2012.