Complex sentence: The Home Farm, open to the public, has a barn built in 1694 and is the largest working rare breeds farm in Europe, and only one of 16 nationally approved by the Rare Breeds Survival Trust.
Split into simpler sentences: The Home Farm, open to the public, includes a barn which was built in 1694. It is the largest working rare breeds farm in Europe and the only one of 16 nationally approved farms by the Rare Breeds Survival Trust.