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Ocean AccessCanal Width 81-120 FeetSeawall
3742 Seagrape St
Big Pine, FL, 33043
$5.4M
3
Bedrooms
3
Bathrooms
4,687 sqft
Living Area
2014
Year Built
Dock & Water Access
↔ Canal Width
Canal Width 81-120 Feet
Dock Amenities
Waterfront Features
Ocean AccessCanal Width 81-120 FeetSeawall
Description
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.
Location
Big Pine, FL, 33043
Listing courtesy of Ocean Sotheby's International
Last updated: 3/21/2026
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Dock Score™
70
Based on dock amenities, ocean access, and waterfront features
Dock Score is a DockOnly.com rating. Not provided by or affiliated with the MLS or listing broker.
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Estimate your monthly payment for this waterfront property
20%
$1,078,000 down
%
Principal & Interest$27,968/mo
Property Tax (est. 1.2%)$5,390/mo
Home Insurance (est.)$250/mo
Total Monthly Payment$33,608
Loan Amount: $4,312,000Rate: 6.75%
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Nearest Bridge Clearances
Florida Keys — critical for tall/large vessels
No bridge data available for this location.
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Lot Size17,260 sqft
Days on Market309