The above group of drawings all show the Dance wing and Soane's new house with the particular addition of a conservatory projecting from the lawn front. Drawing 134 also incorporates a second staircase leading from the chamber floor to the attics.

Drawing 132 represents the function of Pitzhanger as a vehicle for Soane's collection, showing the position of many urns and statues labelled in the Eating Room. These included statues of Diana and Aesculpius which Soane had already purchased by this point and may well have already been in situ by this time (given that the Dance wing was already there).

Drawing 135 shows the extension of Soane's attention to some of the details of the parkland surrounding Pitzhanger. Labels and sketching, in Soane's hand, even show a walnut tree labelled.

Although drawing 133 is dated to October 1806, it is likely that this is a later addition, in Soane's hand referring to the rough sketch shortening the Dance wing (relating to drawings 223 to 228). The plan itself appears to relate to this group of earlier designs. Given the dates of drawings 134 and 135, as well as stylistic symilarities between the group, it seems likely that they are all in Henry Hake Seward's hand (some with Soane's alterations).