Next to the above sites are ramparts around elevated Speen House , the latest incarnation of Speen manor house , which is mostly late 18th century .
Next to the above sites incorporates a minority of building materials from its 17th century precursor .
Next to the above sites are ramparts around elevated Speen House , the latest incarnation of Speen manor house , which is mostly late 18th century , but incorporates a minority of building materials from its 17th century precursor .