 In 1980 the building was extensively restored and renovated, with the £1.5 million programme being carried out by Donald Insall Associates.At that time the building served as the Headquarters for the Territorial Army in Greater London, and as the home of Territorial units 144 Parachute Field Ambulance RAMC(V), 257 (Southern) General Hospital RAMC, 21 Special Air Service Regiment (Artists), and companies of the TA Parachute Regiment and the London Irish Rifles.In addition, it served as the headquarters of the Royal Corps of Signals and First Aid Nursing Yeomanry, and as the home of the Coldstream Guards Band, and a Light Aid Detachment of the Royal Electrical and Mechanical Engineers.