HAWTHORNE HILL, Bayard Thayer Estate, amidst 217 totally private acres, designed by architect of Boston Museum of Fine Arts in 1902, located within an hour of Boston, major airports, and commuting routes a few miles away. Built with the finest of materials, a massive brick façade manse with slate roof, corners wrapped in grey stone, extensions from foundation all sides for full support of the brick and slate incorporated in this 62 room Mansion including 31 rooms+16 baths, 3 stunning levels+ basement, plus Middle Wing 11 rooms+6 baths, and Institutional Wing 19 rooms+6 baths with medical/ educational uses. Potential to tie into town sewer for future expansion or development. Scenic distant views. Original horticulturist's famed hobby exhibited through extensive grounds with multitudes of specialized gardens and plantings, sweeping lawns, light forest for hunting his ring necked pheasant, pond, streams. Distant 6680sf stable/carriage barn partly converted to living quarters! Rare!