Introducing 6 Hansen Manor, an exceptional lakefront luxury estate in the gated Spring Mill community. Tucked at the end of a quiet cul-de-sac on an extraordinary 2.15-acre waterfront homesite, this Fischer and Frichtel-built residence offers over 9,600 square feet of refined living space, resort-style outdoor amenities, and a combination of privacy, acreage, and lifestyle that is increasingly difficult to find. For buyers seeking premier homes with gated community appeal, lake views, a pool, a main-floor primary suite, and a thoughtfully designed layout with ample room for entertaining, this property stands in a class of its own. Created for both gracious entertaining and comfortable daily life, the home features a grand foyer, dedicated office, formal dining room, dramatic gathering room, vaulted hearth room, well-appointed kitchen, breakfast room, butler's pantry, and five fireplaces. The beautifully finished kitchen includes premium cabinetry, granite countertops, commercial-grade appliances, and a recently upgraded 6-burner Wolf cooktop. Large windows capture tranquil water views and fill the interior with natural light. The main level also includes a spacious laundry room with abundant cabinetry, generous counter space, and two closets, along with a substantial mudroom featuring floor-to-ceiling cabinetry, a full bath, and direct access to the oversized four-car garage. A powder room adds further convenience. The main-floor primary suite serves as a private sanctuary with a fireplace, bay window, private deck, spa-inspired bath, and two spacious walk-in closets. Upstairs, two ensuite bedrooms with walk-in closets, flexible bonus space, a well-equipped kitchenette with a sink, cabinetry, a built-in microwave, and a dishwasher, plus a finished luggage/storage room, provide comfort and versatility for family, guests, or longer-term stays. The walkout lower level is equally impressive, offering a family room, full kitchen, theater/media room, two en-suite bedrooms with walk-in closets, a crafts room, a library, a second laundry area, a safe room, a powder bath, and ample storage, making it ideal for multigenerational living, gracious entertaining, recreation, or extended stays. Extensively improved and very lightly lived in, this home pairs timeless architecture with thoughtful modern refinement. Recent improvements include hardwood flooring in the primary suite, kitchen, and hearth room; new porcelain flooring in the mudroom, bath, and laundry; carpet in the great room; recently replaced HVAC and two 75-gallon water heaters; quartz countertops, sinks, and faucets in multiple service areas; lighting enhancements, including designer chandeliers; remote window treatments; security with exterior cameras; a refined theater with Sony 4K projection and improved sound; and refreshed pool equipment. Outdoor spaces are equally compelling, with a pool, deck, patio, lush landscaping, LED landscape lighting, and peaceful lakefront surroundings spread across 2.15 acres, creating a serene retreat at home. Spring Mill offers the appeal of a prestigious gated neighborhood with a walkable setting, scenic beauty, and convenient access to shopping, dining, parks, trails, major interstates, airports, hospitals, universities, and the greater St. Louis region. A distinctive opportunity to own a signature home with waterfront views, acreage, flexible living areas, and the elevated lifestyle sought by discerning, executive, and relocation buyers alike.