[2] After completion of the southern breakwaters in 1872, a large building (within what later became the Royal Dockyard area) was converted into a hospital; By 1890 it consisted of two blocks, with 76 beds.

[4][3] With naval use of the harbour continuing to increase, plans were drawn up in 1901 for a new general hospital to be built at Castle Road (on higher ground directly south of the sick quarters).

(At the same time the Isolation Hospital was closed and converted into married quarters for the Admiralty Constabulary).

Most of the Edwardian hospital buildings survived into the 1990s, but today only a single pavilion ward remains.

[4] By 2005, some out-buildings of the hospital site were demolished to make way for Foylebank Way, a residential area for the elderly above 55 years of age.

[8] Another surviving building from the Sick Quarters is the old Porter's Lodge and Mortuary complex, which today houses the Gatehouse Medical Centre.