| Facility
|
Dates
|
Description
|
Notes
|
| North Battery
|
1795
|
Eight North Battery gun emplacements
|
|
| North Caponiers
|
1829
|
Defensive Caponiers
|
|
| Upper Battery
|
1864
|
Eight Upper Battery gun emplacements
|
display guns
|
| Main Magazine and Tunnel Complex
|
1865
|
Underground complex with interconnecting tunnels and rooms
|
|
| South Caponiers
|
1866
|
Defensive south, southeast and southwest Caponiers
|
|
| Guardroom and Prisoners' Quarters
|
1866
|
Guardroom and prisoners' quarters built into a deep cut in the rampart
|
|
| Main Magazine
|
1866
|
Main bombproof magazine
|
|
| Lower Battery
|
1868
|
Heavy muzzle-loading rifled (RML) guns in a casemated battery
|
|
| Artillery Stores Building
|
1873
|
Single story brick artillery stores building
|
|
| Stores Building
|
1885
|
Single story brick carpenter shop and smithy near submarine cable tank
|
|
| Laboratory building
|
1885
|
Single story brick laboratory for making cartridges and filling shells for the RML guns
|
|
| Loaded Mine Stores
|
1896
|
Storage of loaded mines until they were required for practice or distribution in the event of attack
|
|
| Married Officers Quarters
|
1901
|
Single story brick married officers quarters
|
|