The Seax Archeaology site describes Tree Farm as a single-storied house with attics, timber-framed and weatherboarded, with thatched roofs. Built in the 17th century, the house is of central-chimney type with `modern additions’ to the rear and an original central chimneystack.
This clearly is a very good description of the farm house in the picture. I cannot find a description of Westwick Farmhouse. It could have been of similar construction.