Virtually Staged. ?Luxury Waterfront Estate on the Matanzas River - 3,880 SF with Direct River Access & Transferable Dock Permit! ?RIVERFRONT LUXURY REFINED - Set on just under half an acre with 81 feet of direct Matanzas River frontage, this fully updated 3,880 sq. ft. coastal estate delivers rare architectural flexibility, high-end modern finishes, and elevated living on coveted Lambert Avenue. ?ELEVATED MAIN LIVING & MEDIA WING (2nd Floor): Spanning the second floor, the main living hub is designed to capture panoramic water views through dramatic 24-foot sliding glass doors that open to a massive covered deck. The designer kitchen is outfitted with luxury quartz countertops, full tile backsplash, shaker cabinetry, LG stainless steel appliances, and a dedicated coffee bar with custom shelving. This floor offers 4 bedrooms, 2 custom-tiled spa bathrooms with rainfall showerheads, a sun-drenched sunroom, and an expansive media/flex room-ideal for a private executive home office, media retreat, or secondary family wing with its own direct access from the oversized garage. ?GROUND-FLOOR IN-LAW SUITE (1st Floor): With its own private exterior entrance and river views, the fully updated 2-bedroom ground-floor suite features a coastal style with a full kitchen, dining area, living room, full bath, and laundry setup-perfect for extended family, hosted guests, or flexible living. ?BONUS FLEX STUDIO & SUNROOM: Expanding the lower level is a crisp, bright flex studio with its own attached sunroom. Complete with fresh paint, brand-new doors, and custom-finished floors, this versatile space offers endless possibilities as a quiet executive home office, private fitness studio, game room, or extra storage retreat. ?FULL STRUCTURE RENEWAL & WATERFRONT LIFESTYLE: Turnkey from top to bottom featuring a new roof, new Hardie board siding, updated windows and doors, new luxury flooring, three HVAC systems, a new concrete driveway, and an oversized 3-car garage with an integrated half bath. Step into your backyard to fish, launch kayaks, or build your custom deep-water dock with an active transferable permit. No HOA. Just minutes from downtown Flagler Beach's shops, dining, and beaches. ?Schedule your private tour to experience this rare riverfront sanctuary in person.