Part of the hall is shown on a part-plan of the ground floor in the archives (Priv. Corr. XIII.H.10), having the same design as in drawing 34. The entrance hall appears to be an existing part of the house that Soane has altered to include the two sets of round-headed arches as in drawing 34. The plan (XIII.H.10) shows the hall on the west side of the house, with an entrance on the west wall and a fireplace opposite. This west entrance is closer to the principal staircase than the north entrance, suggesting that it is a remnant of the old house.