St Mary's Hospital in Stannington, Northumberland was opened in 1910 as the Gateshead Borough Lunatic Asylum and later became known as Gateshead County Borough Mental Hospital.
During both World Wars, parts of the hospital were requisitioned for military use. The hospital joined the National Health Service in 1948 and was renamed St Mary's Hospital after the local parish church.
The hospital closed in 1995, and most of the buildings were demolished in 2015 to make way for a new housing development by Bellway Homes. Several of the original buildings, including former staff houses known as The Villas, the gate-keeping lodge, the Chief Medical Superintendent's Home, and the Administration block (now known as St Mary's Inn) still stand.
Recently, there have been issues with sinkholes appearing on the new Bellway Homes estate, believed to be connected to old tunnels from the hospital that were not filled correctly.
The photographs were taken in 2009.
© Alan John Ainsworth Photography