Deene Park is a wonderfully eclectic mix of architectural styles that have evolved over the centuries. Before the Norman Conquest and 150 years after Dean was a manor belonging to Westminster Abbey and was occasionally used by the abbot. In 1514 Sir Robert Budenell took over the yearly lease of £18 and the house has been in the family of the Earls of Cardigan and Brudenells ever since. The house was built over his six centuries and developed into a Stately Home during the Tudor and Georgian eras. Most of the rooms that the family now use on a daily basis are open to the public.

Curated by many volunteer guides during open days. At least fifteen rooms are open to the public on Open House Days, each with its own style. Deene Park is a mix of furniture and family heirlooms collected by the fourteen generations over the years and is full of sentimental value. The unique mixture offers visitors an impressive yet intimate atmosphere. Tickets are available to purchase online until midnight the night prior to an event. Once the online ticket portal closes, tickets will be available to purchase in person at the admissions hut from 1pm.