29128 Jefferson Avenue Known as "The Castle on the Lake, " this iconic Lake St. Clair waterfront estate is a rare and unforgettable offering. Set on approximately 0.71 acres with an impressive 113 feet of lake frontage, this remarkable property offers an exceptional waterfront lifestyle with captivating lake views from almost every room. Rich in architectural character and timeless appeal, the estate features a carriage house, attached two-car garage, widow's walk, turret, Juliet balconies, and a grandfathered-in boathouse. A dramatic 2-story glass Palladian window fills the home with natural light and enhances the stunning waterfront setting, while a gated motor court leads to beautifully landscaped grounds and creates a grand approach to the residence. Inside, this home stands apart from today's newer construction with its old-world craftsmanship, memorable architectural details, and layout designed to showcase the beauty of the lake. The atrium connects the main residence to the carriage house, which includes its own kitchen, living room, breakfast room, bedroom, pantry, and separate entrance. The main home offers a finished basement with a spacious rec room anchored by a fantastic stone fireplace, along with a large laundry room, abundant storage, a workroom, and a half bath. Exterior and waterfront improvements noted in prior public records include slate roof repairs, updated sunroom windows, steel grating at the dock, electrical service to the boat hoist, steel seawall, boathouse, hoist, and dock. New boiler installed in 2026. From its sunrise water views to its rare combination of scale, frontage, and architectural presence, this is a truly one-of-a-kind waterfront estate offering historic charm, exceptional features, and unmatched appeal on Lake St. Clair.