In 1954 this original mid century concrete block home was custom built by a Harvard professor of Geology. This land was once part of the Habitat located on Juniper Road which was designed by the famous landscape architect Frederick Law Olmsted. In 2007 the current owner completed an elaborate addition intentionally hidden from the street doubling the size of the home and designed to blend into the surrounding nature with its glass walls, and vast open spaces. The owner a Harvard Professor of design collaborated with a Pritzker Prize Spanish Architect named Rafael Moneo once chairman of The Harvard Design School. This visionary 6 room modern addition features an incredible double story family room with glass walls, patio access, imported marble fireplace from Tinos Island Greece, and beautiful custom builtins. The addition also features 2 new staircases to marry the original home and boasts a beautiful glass office with deck access, marble wood burning fireplace, handsome built-ins and overlooks the grand family room. Accessible from the office, hallway and the yard is the most incredible 1000+ square foot deck made from Ipe iron wood and is organically shaped into the trees with glass railings. This incredible space perched in the trees will make you feel as if you are in a massive treehouse overlooking the grounds and brook. The unique and well planned 3 bedroom sleeping wing is designed around a central lounge area that opens to a rock terrace. The secluded owners suite features cherry built ins, custom cedar closet, marble bath and a private sunken jetted tub in its own private nature room. The 2 additional bedrooms also offer custom cherry & cedar closets, and share a marble bath. The lower walkout level of the mid century wing has a second kitchen, guest room with full bath, recreation room, cedar closet, laundry, 2 storage rooms and a book cased library with brick fireplace that opens to a covered patio and the yard which once held the rock collection of the original owner. This newer addition also features radiant heat, custom cherry doors and windows from northern Greece, Penteli marble sourced from the Parthenon quarries, central AC with dual fuel heat and 200 amp electrical. A garage, carport and 2 driveways offer ample parking. This is a unique nature lovers home evokes the essence of California with a European blend, its a one of a kind property and offers tremendous potential to grow or use as is.  All this in an A+ location providing a short stroll to town, 80+ acres of trails, The Belmont Hill Club and 2 top private schools.