Sizergh Castle is a stately home with garden and estate at Helsington in Cumbria, England, about 4 miles (6 km) south of Kendal. Located in historic Westmorland, the castle is a Grade I listed building.[1] While remaining the home of the Hornyold-Strickland family, the castle with its garden and estate is in the care of the National Trust.
In 2016 the Sizergh estate was included in the newly extended Lake District National Park.[2]