Highcliffe Castle has been described as arguably the most important surviving house of the Romantic and Picturesque style of architecture, which flourished at the end of the 18th century and the beginning of the 19th century. Its significance is recognised nationally by its Grade 1 status on the Statutory List of Buildings of Special Architectural and Historical Interest. The Castle is now a popular tourist attraction, community space and one of the most popular wedding venues in Dorset and Hampshire.