Discover one of Ooltewah's best-kept secrets at 10866 Lost Lake Circle ... a private, gated retreat offering peaceful waterfront living on 5.04 beautiful acres. Tucked away in a serene setting that feels far from everything yet remains remarkably convenient to town, this custom home offers the perfect balance of seclusion, luxury, and everyday practicality. Inside, the current owners have thoughtfully enhanced the home with fresh interior paint throughout, and professionally refinished hardwood floors, giving the entire home a crisp, refreshed feel from the moment you enter. An immediate view straight through to the water sets the tone, highlighting the natural beauty surrounding the property. The main level features an open-concept living space centered around a soaring vaulted ceiling and a striking floor-to-ceiling stone fireplace. The chef's kitchen is outfitted with high-end Thermador appliances, built-in oven, an 84-inch built-in refrigerator, induction cooktop with pot filler, custom pull-outs, and an oversized walk-in pantry—designed to impress both the home chef and the entertainer. A dedicated office, two spacious guest bedrooms with walk-in closets and a Jack-and-Jill bath, and a dining area overlooking the water round out the thoughtful main-level layout. The primary suite is a peaceful haven with water views, a vaulted ceiling, and private access to the covered back porch. The luxurious ensuite includes heated tile floors, a freestanding soaking tub, a large walk-in tile shower, and a generous walk-in closet connecting directly to the laundry room for added convenience. Upstairs, a versatile bonus room with its own full bath and walk-in closet offers ideal space for guests, recreation, or a private retreat. Outdoors, enjoy 204 feet of level water frontage on the 10 acre private pond, a custom Connect-A-Dock, and a scenic backdrop ideal for paddle-boarding, fishing, or relaxing by the water. The expansive covered back porch includes custom steel and stainless railings, concrete-on-steel flooring, a gas fireplace, grill-ready gas line, and custom metal stepsdesigned for year-round enjoyment. Mature woods across the road offer peaceful trails where deer and turkeys are often spotted. Additional features include custom window treatments, UV protection film on south windows, tankless water heater with recirculating pump, high-efficiency HVAC, LED lighting, invisible pet fencing, AT&T fiber internet, and a walk-in full encapsulated crawl space (installed by the current owners) for extra storage. With unparalleled privacy, premium updates, stunning water frontage, and surprising convenience to town, this exceptional property is truly a rare find. Schedule your private tour today.