Cedars Park was once the site of the magnificent Royal Theobalds Palace that was visited often by Elizabeth I as a retreat from Westminster and the crowded City of London in the 16th century. It was then owned by Sir William Cecil and subsequently came into the possession of James I in exchange for nearby Hatfield House. The palace has long since been demolished but the park retains key historical value.

Work has been undertaken on the restoration of historic pathways to reveal the archaeology of the palace and its grounds, repair of historic brick walls and improved screening of the park with new woodland planting along the major highway boundaries. Improved interpretation, signage, a website and events have all been designed to encourage greater community use and enjoyment of the park. The café has been relocated to the previously unused conservatory, while the former site houses a meeting, education room, and toilets for community use. New play facilities and features that illustrate the park’s landscape and history, including sculptures of exotic animals kept by James I and two new bocce courts, have been introduced at the request of the local community.