A lavish blend of old-world elegance and modern convenience, 1174 Old Tolson Mill Road epitomizes luxury estate living. Nestled on a private road in prestigious, wooded McLean, this grand home is set behind motorized wrought-iron gates. Its exterior, crafted from brick and stacked stone, exudes timeless refinement, further enhanced by a paver driveway and new landscaping by Charles Owen. The double-height portico, supported by Corinthian columns, welcomes you to opulently curved wood and glass double doors with intricate wrought iron inlays. These doors open to a grand foyer featuring a mezzanine and a bifurcated central staircase inspired by New York’s Four Seasons Hotel. Marble floors, thick moldings, and wrought iron railings set the tone for over 15,000 square feet of meticulously designed living space by Arlene Christos. The main level boasts 12.5-foot ceilings, soaring to 24.5 feet in the great room, which features a floor-to-ceiling fireplace. The great room also includes hidden invisible speakers, adding to the atmosphere without sacrificing the classic design. Formal living and dining rooms, adorned with masterful millwork, flank the grand reception hall. A wood and cloth paneled library overlooks the rear lawn, and a main floor suite offers multigenerational flexibility with a walk-in closet and a spa bath. The kitchen is a chef’s dream, equipped with two islands, furniture-grade cabinetry, and high-end Miele, Sub-Zero, and Wolf appliances. Adjacent to the kitchen is a cozy family room with a gas fireplace, terrace access, and a high-end Meridian surround sound system offering a movie theater-like experience. The home’s advanced Crestron system controls music, cameras, blinds, and lights, all accessible via smartphone app. The upper level features a resplendent primary suite spanning over 38 feet, with a double-tiered tray ceiling, an automated Phantom screened-in balcony, a hot tub, and a spa-inspired bath clad in travertine. Three additional bedrooms, each with ensuite baths and walk-in closets, offer luxurious accommodations. Automated blackout shades, a large laundry room with two sets of appliances complete this floor. The lower level, designed for entertaining, includes a recreation room with a masonry fireplace, a central wet bar flanked by twin wine cellars, a game room, a professional home cinema, and a wellness center with a steam shower and sauna. A generous bedroom suite completes the walkout lower level. The estate features comprehensive security and smart home systems, including 18 outdoor/indoor security cameras, customizable display cameras with sound, and 21 days of recording covering the kitchen, garage, gate, and door. Cell phone boosters are installed on every level. Windows and doors are hardwired to the alarm system for enhanced security. Over $350k has been invested in these systems, ensuring both luxury and peace of mind. Outside, the rear terrace overlooks two acres of private, fully-fenced grounds, featuring a large patio and winding pathways. Behind the scenes, commercial-grade systems include a private elevator serving all three levels, dual garage lifts for five-car parking, four HVAC systems, a central vacuum, and an 80,000-kilowatt Generac generator. 1174 Old Tolson has secured approved permits from Fairfax County for a resort-style pool and a home addition on the lower level, seamlessly extending adjacent to the pool area. The renderings in the gallery showcase these approved plans. With fortress-like construction, unparalleled craftsmanship, and a discreet yet convenient location, 1174 Old Tolson Mill Road epitomizes refined living, offering an unparalleled sanctuary for those who seek the utmost in elegance and exclusivity.