Introducing Arlington's Mid-Century Modern Home.Elevated on a quiet cul-de-sac and nestled into a private, wooded ridge, this extraordinary residence is one of Arlingtons most architecturally significant homes. Known as The Ridgeview House, it was designed in 1952 by Donald Lethbridgea founding voice of modernism in the Washington region and a principal of Keyes, Lethbridge & Condon.Constructed of steel, concrete, brick, and expansive glass, this 6-bedroom, 5.5-bath home has undergone a decade-long transformation. The renovation remained fully faithful to Lethbridges original design while elevating the home for contemporary living. Nearly every elementinside and outwas thoughtfully rebuilt with custom fabrication and hand-selected materials. Highlights include new insulated glass walls, rebuilt patios and floating decks, a digitally fabricated solid-surface kitchen, custom millwork and floating staircases, four fireplaces and a sleek Rais wood stove, and a luminous, south-facing primary suite with an all-glass bath described as jewel-likeInterior spaces are generous yet flexible, with roughly 5100 square feet of living area across two levels, plus a generous 2300 sqft of outdoor living space making indoor-outdoor entertaining easy all year long. The main floor opens to the landscape through walls of sliding glass doors, bringing the outdoors in. Stunning mid-century details are complemented by new millwork, lighting, and design continuity throughout. Five sets of sliding glass doors open to five different outdoor entertaining areas, expanding the home's footprint and blurring the lines between indoor and outdoor living.Lifestyle amenities include a treehouse-style office, a fully outfitted fitness room with a private bath, a discreet lounge and bar area, smart home lighting and spacious formal living and dining rooms. Additional features include a tucked-away two-car garage, a built-in spa, an outdoor firepit, an emergency generator, custom skylights, new electrical service and updated panels, renovated bathrooms, custom window treatments in the bedrooms, and a large laundry room with folding and drying areas.Set on three-quarters of an acre, the property feels secluded yet connectedjust one traffic light from downtown D.C. It offers seasonal skyline views of Washington, D.C., the National Cathedral, and the Rosslyn skyline.Arlingtons Mid-Century Modern isnt just a homeits a rare opportunity to live within a true work of art, where architecture and landscape exist in quiet harmony.