hanstead house or hanstead park is a country house estate in hertfordshire, england. hanstead is near bricket wood, about three miles from radlett and five miles from st albans, within the green belt around london. it forms part of the civil parish of st stephen, hertfordshire within st albans district council. the park has been a stud, a college, and a corporate training centre, and is now owned by a property development firm. the current building, though in the georgian style, dates from 1925. the property was mentioned in the domesday book.