Drawings 178-180 appear by their dates to be the last exant drawings within the scheme for the gated entrance. However, these later designs still carry pencil revisions and sketched-out details.

The earlier part of (office) drawing 178 is actually dated 17 November 1801. However, the substantial reworkings by Soane date to 6 December. Soane's revisions are probably closest to the built design. These are seen particularly in the small side gates set close to the framing piers of the gated entrance itself (which are in evidence today), as well as the low outer pier.