St Mellion is also the location of
Pentillie, a 17th-century castle and estate which has been a seat of the Coryton family since 1698. They additionally owned an estate at Newton Ferrers, also in St Mellion. The manor of Newton Ferrers (
Niuuetona, Niweton, Niwetone) is recorded in the
Domesday Book of 1086. It was held by Reginald from
Robert, Count of Mortain. The house on the New Ferrers estate,
Newton Ferrers House, was built about 1686–95 for Sir William Coryton. Gatepiers carry these dates. It is a plain granite mansion of two storeys: the centre is of seven bays and there are two projecting wings of two bays each. It is the earliest Cornish mansion in the classical style (i.e. with no Tudor survivals). Two thirds of the house were gutted by fire in 1940; of this some was subsequently rebuilt after the fire while the rest remained as ruin. In the 21st century the house was completely restored. Crocadon Quarry, 200 metres east of St Mellion village, is a
Site of Special Scientific Interest for its
geology. The
St Mellion golf course is also in the parish. ==References==