sentences:  In 1452 Sir Thomas Cooke (c.1410-1478), a Lord Mayor of London, bought the estate and in 1466 was granted a licence to crenellate, which is a licence for the manor house to be fortified.The manor work started in 1466 with the construction of a moat and other alterations which were not finished until 1568.The main house and two adjacent wings formed three sides of a courtyard with an open colonnade on the fourth side and various outbuildings.