Royal Hospital Haslar

The Royal Hospital Haslar in Gosport, Hampshire, was one of several hospitals serving the local area. It was converted into retirement flats between 2018 and 2020. The hospital itself is a Grade II listed building.
The Admiralty acquired the site selected for the hospital, Haslar Farm, whose name came from Anglo-Saxon Hæsel-ōra , in 1745. The building was designed by Theodore Jacobsen and construction of the main building was completed in on 23 October 1753. On completion it was the largest brick building in Europe. Building works cost more than £100,000, nearly double the cost of the Admiralty headquarters in London. In its early years it was known as the Royal Hospital Haslar.

Wikipedia