For those seeking luxurious coastal living, welcome to your new secluded haven at 16449 Ladona Circle! This breathtaking 4-bedroom, 3.5-bath waterfront retreat on highly coveted Humboldt Island offers an inviting open floor plan in one of Huntington Harbour's most awe-inspiring locations. Upon entrance from the front, you're greeted by a captivating lush tropical water garden, complete with a meticulously maintained koi pond. Inside, the estate boasts a gourmet kitchen with granite countertops and stainless steel appliances, flooded with natural light from numerous dual-pane windows. The butler's pantry, kitchen dining area, and living room, featuring a charming fireplace, create an ideal space for both relaxation and entertaining. Take in the stunning waterfront views from the kitchen, living room, and upper-level patio, perfect for family dinners or cocktails. A formal dining room and luxurious main floor primary bedroom with en-suite provide additional comfort and elegance. Transversing to the lower level, discover a meticulously maintained great room meant for entertaining family and friends, an indoor laundry room with a sink, alluring wine cellar, optimized office, two thoughtfully conceived spacious bedrooms, and the tailored to perfection second primary bedroom with breathtaking water views. The attached 2-car garage boasts epoxy flooring, granite countertops/workbench, and luxurious solid wood cabinets with ample storage. Additionally, a brand new Tesla charger installed. Step outside to the impressive and expansive 50 ft waterfront patio, leading to a brand new dock and an extraordinary private extra-wide boat slip accommodating up to a 38' boat. Moments from PCH, dining, and entertainment, residents of Humboldt Island also benefit from community sports courts, private beaches, and playgrounds. A study in sophisticated coastal living, this spectacular residence really does have it all.