Heritage Open Day: View this house with its Norman interior. The oldest secular house in King's Lynn. One of the most interesting of all houses in Lynn. A very early survival. Clad in an early 19th-century brick skin and a medieval timber-framed house, although a stone house of about 1180 can be found inside. You can see the arches remaining from this Norman house. The chimney stack was pushed into the wall c.1550.