Flagstaff House had been named as Headquarter House until 1932.
The site chosen was a small bluff above the barracks and above Queen's Road, then at the waterfront.

The building was designed in Greek revival style.
Historians suspect it was designed either by Murdoch Bruce, a Scot who was inspector of buildings, or by Lieutenant Bernard Collinson of the Royal Engineers.
The first occupant was Major-General George Charles D'Aguilar, General Officer Commanding from 1844 to 1846 who also held the post of Lieutenant Governor.

The west and east wings were shelled during the Japanese invasion in the Second World War; it also suffered bomb damage.
The Japanese repaired it and the Commandant took the building as his residence during the occupation.

After the war, Flagstaff House was again the Commander's residence until 1978, when the Commander moved to a purpose built house on Barker Road.
It was handed over by the military to the civilian Hong Kong Government as part of the recovery of Victoria Barracks.
The Government put it under the responsibility of the Urban Council in 1981.

The building was declared a monument in 1989.
It was restored as far as possible to its original mid-19th-century appearance, structurally reinforced, and the interior was to be modified so that it could be used as a museum.
Flagstaff House had been named as Headquarter House until 1932. The site chosen was a small bluff above the barracks and above Queen's Road, then at the waterfront. 
The building was designed in Greek revival style. Historians suspect it was designed either by Murdoch Bruce, a Scot who was inspector of buildings, or by Lieutenant Bernard Collinson of the Royal Engineers. The first occupant was Major-General George Charles D'Aguilar, General Officer Commanding from 1844 to 1846 who also held the post of Lieutenant Governor.
The west and east wings were shelled during the Japanese invasion in the Second World War; it also suffered bomb damage. The Japanese repaired it and the Commandant took the building as his residence during the occupation. 
After the war, Flagstaff House was again the Commander's residence until 1978, when the Commander moved to a purpose built house on Barker Road. It was handed over by the military to the civilian Hong Kong Government as part of the recovery of Victoria Barracks. The Government put it under the responsibility of the Urban Council in 1981.
The building was declared a monument in 1989. It was restored as far as possible to its original mid-19th-century appearance, structurally reinforced, and the interior was to be modified so that it could be used as a museum.
Flagstaff House