The Crooked House in Lavenham, Suffolk, is believed to have been built in the late 14th or early 15th century. Over time, the building has become increasingly crooked due to the use of unseasoned green oak timbers, which have warped and twisted as they have dried out.
It is difficult to pinpoint an exact date when the Crooked House became noticeably crooked, as the gradual movement of the timbers would have been imperceptible at first. However, by the 19th century, the building had become so tilted that it was said to be leaning at an angle of 20 degrees.
Despite its wonky appearance, the Crooked House has survived for centuries and remains a popular tourist attraction in Lavenham today.