Haulfryn Group Ltd, founded in 1935, operates holiday and residential mobile home parks in England and Wales. The holiday parks are mainly in North Wales and include The Warren, one of the best known and highest quality parks in the UK. Others are in South Devon and on the East Sussex coast. Residential home parks are situated in the Home Counties, Cheltenham, Dorset, Hampshire and Wiltshire. The business includes substantial redevelopment and upgrading of parks. Haulfryn is one of the industry leaders, particularly in raising the standards both of the parks and of the homes provided on them.