Welcome to an extraordinary oceanfront opportunity on the exclusive island of Duck Key. Set across three lots totaling just under one acre, 341 E. Seaview is a rare sanctuary defined by privacy, scale, and commanding water presence offering seldom found in the Florida Keys. Surrounded by mature, swaying palms and uninterrupted ocean views, this protected estate boasts approximately 200 feet of deep-water dockage, safely positioned behind a breakwater--an exceptional advantage for owners of large yachts or sportfishing vessels seeking effortless access and peace of mind. The dockage alone places this property in a category of its own, offering the depth, frontage, and protection discerning boaters demand. Whether you choose to enjoy the existing residence or envision the construction of a bespoke private estate, the canvas here is unmatched. Expansive lot size, premier oceanfront positioning, and premier dockage combine to create a legacy-level property, ideal for those who value exclusivity, serenity, and the refined island lifestyle. Looking to build a community of friends? Join Club Duck Key and take advantage of the pool, tennis courts, pickleball, bocce ball and enjoy one of the many social events throughout the year. Jump in the golf cart and hit up one of the great restaurants on the island like Salt + Ash or Angler and Ale. This is not simply a home; it is an opportunity to own one of Duck Key's most distinguished waterfront holdings--where luxury meets latitude, and privacy meets open water.