A comparison of the ground floor plans of schemes A, B and C shows that this third variant plan (drawing 9) has a similar form to scheme B (drawing 4) though the circulation is treated differently. Thus the sequence is that of entrance vestibule, tribune and stair rather than portico, vestibule, stair and a small external court. A 'tribune' can be defined as 'a space penetrating the ground and upper floors of a building often articulated by arcades'. Soane's first use of a tribune was for his Royal Academy student design for a 'Nobleman's house' of 1774 (q.v.). Executed examples include those at Tyringham, 1796 and Pitzhanger Manor, 1800 (q.v.).
A comparison of the entrance elevations for schemes B and C (there is no surviving elevation for scheme A) show them as broadly similar allowing for the lack of a portico in scheme C.
The end (east) elevations of schemes A, B and C are much the same except that the central two-storey bay of scheme C does not have a pediment.