Ashridge is a country estate and stately home in Hertfordshire, England. It is situated in the Chiltern Hills, an Area of Outstanding Natural Beauty, about 2 miles (3.2 km) north of Berkhamsted and 23 miles (37 km) north west of London. The estate comprises 5,000 acres (20 km2) of woodlands, commons and chalk downland which supports a rich variety of wildlife.