A plan drawn in 1900 calls the six chambers the "Council Chamber" (a circular chamber 12 feet in diameter to the right of the entrance, with a domed roof light), and smaller chambers to the left of the entrance are named the "Committee Room No 2" (a square chamber with niches) and the "Refreshments Room"; on the centreline, connected by an air shaft, are the "Consulting Room", the "Committee Room", and the "Robing Room".