3742 Seagrape Street
Escape to “The Castle”, a luxurious gated Gulf-front estate spanning 1.14 acres on Big Pine Key. Built in 2014 with poured concrete, impact windows/doors, elevator, and generator, this 4,600+ sq. ft. masterpiece offers 3 bedrooms, 3 baths, and breathtaking Gulf views. Boaters enjoy 235’ of dockage: 140’ protected canal dock with lift, ramp, and slip, plus 95’ open-water pier dock with lift and seawall. Inside, a chef’s kitchen with 10.5’ island, dual sinks, Jenn-Air gas range, and wood cabinetry flows to a grand family room, theater, and rooftop deck. The top-floor primary suite boasts water views, office, lounge, spa bath, and custom closet. Outside, a resort-style pool with spa, heater/chiller, and LED lighting completes this rare Florida Keys retreat.
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Listed by Ocean Sotheby's International · 305-735-4095
Listing data comes from the participating MLS and is provided for consumers’ personal, non-commercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Properties shown may be listed by brokerages other than Pure Equity Realty LLC, and are marked with the listing office’s name. Information is deemed reliable but is not guaranteed accurate by the MLS or by Pure Equity Realty LLC, and should be independently verified. Data last updated September 17, 2026.