Old Westbury. Imagine living in a sophisticated treehouse in a fairyland forest, and you will understand what it feels like to live in this amazing home. Entered at street level, its upside-down floorplan has the main floor looking out from a balcony in the master suite, a wall of windows in the den, and a huge deck off the kitchen to a mesmerizing tree-high view of a woodland wonderland. Spectacular specimen plantings enfold a beautiful, beckoning outdoor entertainment complex with pool, patio, and tennis court all accessed from both levels. Secluded off a quiet cul-de-sac in the Stone Arches neighborhood of Old Westbury, its two magnificent, country-club-like acres are surprisingly convenient to parks, museums, fine dining, premier shopping, country clubs, miles of public equestrian trails, polo club, yacht clubs and beaches. Only 30 minutes from Manhattan, Old Westburys verdant rolling countryside is dotted with gorgeous residences and grand estates, some dating back over a century. A few now serve as centerpieces to universities, golf courses and equestrian properties. Two entrances to the property intertwine into a double circular drive that offers not only scenic passage to the homes entrance, but ample space for off-street parking when entertaining. The flower-adorned faade belies the true size of this home with five bedrooms and 3 baths, because the home is built into a gentle hillside, with two sprawling floors looking out to the breathtaking rear property. The lower level opens from a family room onto an expansive Tennessee-crab-orchard stone patio. Its style and material are echoed throughout the property from front stoop, steps and walk from the main floor redwood deck, to the spacious surround of the glistening, heated inground pool. Just beyond the pool, trees and shrubs partially veil a nearby tennis court. Upon entering this stunning contemporary, you will be enthralled by the spectacular great room with soaring cedar cathedral ceiling, met at its apex by clerestories, and an imposing crab orchard stone see-through fireplace that separates the large living room area from the inviting den area. The renovated eat-in kitchen is ideal for entertaining on a grand scale with extensive granite-topped cabinetry, stacked-stone backsplash, large center island with seating, high-end stainless-steel appliances, and built-in wine and goblet racks. Terra cotta floors flow into the breakfast area, with planning center and wide sliding-glass doors opening to the deck, ideal for al fresco dining. A striking vaulted, sky-lit, cedar ceiling presides over the dramatic main-floor master suite that overlooks the scenic rear property through sliding-glass-doors to a private balcony. A lavish, renovated, marble master bath provides the perfect retreat with whirlpool tub, roomy shower, water closet, and ample-sized vanities, with huge undermount sinks, flanking a dressing table. A second bedroom, full bath, office, and access to the two-car garage complete this upper level. The lower level, accessed by a spiral staircase and regular staircase, includes three additional bedrooms, a striking full bath, and a spacious family room with double sliding-glass doors to the rear patio. In beautiful condition and offering a dramatic and inviting year-round setting for entertaining on a grand scale, this enchanting home will delight your senses and give you respite from our fast-paced world.