These variations make it impossible that the plan could be only a survey of the house. It must be at any rate the first version of an original plan produced by Smythson for Sir Henry Griffiths. It is difficult to say how far the variations in the existing house are due to second thoughts on the part of Smythson himself. how far to alterations made by the Griffiths or the masons and carpenters who actually built the house. The semicircular windows were very probably Smythson’s own contributions, for such windows appear prominently in two of his other plans. But it is possible that he planned a house with a level parapet, and of the same height throughout, and that these features were altered or omitted by a conservative patron.