This is a superb two storey building that is now abandoned. It lies adjacent to the new Sandals Hotel Complex in La Troc, Castries, St Lucia. The two water tanks are dated 1890 and 1895, and this time the area was a concentration of Royal Engineer facilities and buildings. There is a 24-pdr British smoothbore cannon, on garrison carriage, out the front. The gun has a GR cipher.