Building Phases

​a - Laboratory Square
b - Great Pile
c - Brass Foundry
d - Guard House
e - Verbruggens' House
f - Officers' Quarters
g - Old Carriage Yard
h - Prince Rupert's Fort
i - Military Academy
j - Shot Yard
k - Old Sea Store
l - Blue Storehouses
m - The stream

​a - Grand Stores
b - New Laboratory Square
c - Carriage Department
d - Storekeeper's House
e - Stables (?)
f - Canal
g - (left) Engineers' Square
h - New Wharf (compare with 1790 river wall)

​Both the stream and Prince Rupert's Fort moats are shown above; in reality they were filled in or led into underground culverts. The culvert carrying the stream frequently gives rise to legends of secret tunnels; there are no secret tunnels in the Arsenal, just drains.

Photo to be uploaded

a - Shipping Sheds
b - Friction Tube factory
c - Engine House
d - Royal Laboratory Offices
e - Paper Cartridge Factory
f - Chemical Laboratory
g - Shot and Shell Foundry
h - Armstrong Gun Factory
i - Gun Boring Mill

a - Carpenters' shop (initially)
b - Mounting Shed
c - Sea Stores
d - Radial Crane
e - Rolling Mill
f - Saw Mill / Timber sheds
g - Rolling Mill
h - Naval Office / Telephone Exchange