...in the centre of the image.

From the Salisbury Cathedral Close Guide:
"Francis Hill, a distinguished London Lawyer and Deputy Recorder for Salisbury, had the house at the head of the Bishops Walk built in 1677.
Kathleen Edwards in her Notes on the Houses of the Close in the Fourteenth Century places the site as that of the Theological School.
It was therefore possibly not coincidental that Bishop Hamilton established the Theological College, here, in 1860, for the training of candidates for ordination.
The flintstone chapel attached to the college by Butterfield was consecrated in 1871.

"In the present century the Diocese of Bath and Wells joined with Salisbury but the College closed as a residential Theological College in 1994.
Today it continues as a studies centre for external courses. Sarum College Bookshop is housed in the building,
open to the public and concentrating on books of a religious nature."