Sensational Mini-Estate on tranquil country rd in Chappaqua school district. Sequestered on 3+ beautifully landscaped acres w/gated entry; exciting Mid-Century Modern main house w/2-car garage; fabulous Gunite pool/spa & oversized deck & patio; pool house w/kitchen, sauna, steam room & guest quarters; & detached 3-car garage w/studio. Main house features open & airy 4289-sf design w/walls of glass, hardwd flrs, dramatic vaulted ceilings, skylights & effortless flow to pool & outdoor areas. Living rm w/fireplace & wet bar area; window-wrapped sunroom; formal dining rm; family rm w/fireplace; sleek top-of-the-line kitchen w/Carrara marble counters, stainless steel appliances & skylit breakfast rm; & walk-out lower level w/game rm & TV rm (can also be au-pair or office). Four bedrooms & two newly renovated baths on 2nd level includes huge master suite w/dressing area, ample closets, en-suite office & sumptuous spa master bath. Near Chapp Xing, Mt Kisco shops, dining & Chapp train station.