Luxurious 6.55-acre estate located in prominent Old Westbury. Located near Glen Oaks & Old Westbury Golf Course and within one hour from New York City, this four-bedroom home offers spectacular views of lush property from every room. This expansive estate includes a 3-hole golf course and an exquisitely landscaped backyard & pool designed for outdoor entertainment. Sporting a dramatic spiral staircase emersed in natural light with floor-to-ceiling glass doors, this home has large windows in every room to enrich the ambiance of this must-see property. Also included are generous storage and closets throughout the home and a colorfully finished basement ideal for a home gym or family den. Not to mention a newly constructed 3 bedroom/4 bath cottage with a charming front porch and gas grill, enriching the property for the perfect outdoor experience. This cottage could be suitable for a lavish guest house, caretakers' home, or rental property!