The current house dates back to the mid-15th century, with major additions in the 16th and, particularly, the early 17th centuries. Its grade I listing reflects its mix of late-medieval to Stuart structures and particularly its central façade and state rooms. In 2019 an extensive conservation project, "Inspired by Knole", was completed to restore and develop the structures of the buildings and thus help to conserve its important collections. The surrounding deer park has also survived with varying degrees of management in the 400 years since 1600.