I think possibly the place that you are referring to in Dunholme House, Cheltenham, now the Home of Cheltenham University it was the home at one time to the Surgeon General and may well have been used by the military at one time.
I have no reference as it is something I read about some time ago but try and find more information for you.
Added at 1935hrs.
I did find this that may give you a path to look at:Major James Russel Landale of Dunholm, The Park, Cheltenham; born in Secunderabad, India, 1881, so of Surgeon-General J. Landale; educated at Cheltenham College, 1896-1899 and at R.M.C. Sandhurst; commissioned Second Lieutenant Royal Scots Fusiliers, March 1901; ''he went to South Africa during the Boer War, and received the Queen''s medal with 5 clasps and transferred to the Indian Army on the 30th September 1905. He was promoted Captain in 1910 and whilst serving in India, married Lilian Constance Shiela, daughter of Sir George Casson Walker, financial adviser to the Nizam of Hyderabad..... He was promoted Major in 1915 and served with the Indian Expeditionary Force in Egypt and Mesopotamia, where he died of wounds on the 9th March 1916, received in action during the battle of El Singh, near Kut-al-Amara whilst commanding his Regiment. The 2nd Rajputs were thanked on parade for their part in the attack on Dujailah Redoubt, which was most gallantly carried out, the capture of which was a valuable achievement. His Brigade Commander wrote that Major Landale had been in command of the Regiment since they arrived in Mesopotamia and that the magnificent way in which the Regiment went in to attack and fought was largely due to his leadership and fine example. He was wounded in the thigh, but took no notice and went on until mortally wounded. Major James Landale has no known grave and is commemorated on the Basra Memorial.... Tragically, his father, Surgeon-General Landale died in England on the same day as his son.'' (Leaving All That Was Dear, refers)
I know this refers to a specific person but maybe the premises were use for the convalesce of wounded soldiers.