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3742 Seagrape St
Big Pine, FL, 33043
Active$4,995,000
3742 Seagrape St
Big Pine, FL, 33043
Active$4,995,000
3
Bedrooms
3
Bathrooms
4,687 sqft
Living Area
2014
Year Built
49,760
Lot Size (sqft)
81
Days on Market
Dock Score™
DockOnly90
ExcellentWhat shaped this score
✓Ocean Access
✓Dock with boat lift for up to 30ft
✓Fits boats up to 99ft
✓Bridge-free to bay
Est. waterfront~104 ft
DockOnly.com rating, not provided by the MLS or listing broker.
Dock & Water AccessMLS
Bay FrontGulf FrontOpen Water📝 15K-lb boat lift
AI Aerial Imagery Detection
Dock DetectedBoat Lift DetectedDeep Water Indicators
Detected by AI from open-source aerial mapping imagery and may not reflect current conditions. This information was not provided by the MLS or listing broker. Always verify dock infrastructure with the listing agent.
Canal WidthDockOnly
At the dock
County parcel data225ft
Single measurement at the dock · width variation along the canal not yet available
Measured perpendicular from this parcel's waterfront edge to the parcel directly across the canal, using surveyed county GIS boundaries.
Will it turn around?
Up to 99 ft
Easy
handling
99–132 ft
Fits
with care
132–153 ft
Tight
(back-in)
Boats over 153 ft typically back in/out rather than turning here. Clear channel ≈ 199 ft with boats moored both sides (~13 ft per side for dock + beam). Wide-beam yachts need the upper end of each range.
Navigation RouteDockOnly
Data sources: SFWMD AHED waterway polygons · FHWA National Bridge Inventory 2024 · Not provided by the MLS or listing broker.
Description
Escape to ''The Castle'', a luxurious gated Gulf-front estate rarely spanning 1.14 acres on Big Pine Key. This extraordinary retreat is a graceful blend of architectural grandeur and coastal charm, thoughtfully designed for both relaxation and recreation. Boaters will delight in an unparalleled offering of 235 feet of dockage total: 140 feet of protected canal-front dockage featuring a 15,000 lb lift, cut-in slip, boat ramp, plus a 95-foot open water pier-style dock with additional 15,000 lb lift and cut-in slip, set against a 130-foot concrete seawall for secure, convenient access. Crafted in 2014 with solid poured concrete, impact-rated windows and doors, whole home generator and elevator, the home is built for enduring elegance. With over 4,600 square feet of refined interior space, this 3-bedroom, 3-bathroom estate is an architect's masterpiece with its stately presence, curved openings, and striking double staircase. Step inside to a breathtaking panorama of endless open Gulf waters and nightly sunset performances. The chef's kitchen is a dream for entertaining, featuring 10.5-foot island with seating for 8, dual sinks, refrigerators, and ovens, plus Jenn-Air 6-burner gas cooktop with pot filler, and rich wood cabinetry. Enjoy the grand family room with Gulf views, host movie nights in the private theater, or dine al-fresco under the stars. Nearby, find the full-size laundry room and storage. The top-floor primary suite is a sanctuary, offering sweeping water views, home office, private lounge with kitchenette, spa-like bath with clawfoot tub, tiled shower and generous walk-in closet with additional laundry. Outside, the resort-style pool beckons with a spa, water features, LED lighting, plus heater and chiller. Rooftop deck with 180-degree views, and unrivaled sunsets await. Offered fully furnished, this is ultimate Keys living without compromise!
Schedule a Showing
See the property and tour the dock. A licensed waterfront specialist will arrange your private showing.
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Location
Big Pine, FL, 33043
No price history available for this property.
Displayed by Blue Mar Real Estate Group Inc., Licensed Florida Real Estate Broker (DBPR CQ1018554) · [email protected]
Listing courtesy of Ocean Sotheby's International via Florida Keys MLS
Last checked: July 21, 2026
Listing updated: June 19, 2026
© 2026 Florida Keys Board of REALTORS®, Inc. All rights reserved. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange (IDX) program of the Florida Keys Board of REALTORS®. Information is deemed reliable but not guaranteed and should be independently verified. All properties are subject to prior sale, change, or withdrawal.
IDX information is provided exclusively 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.
Dock Score™
DockOnly90
ExcellentWhat shaped this score
✓Ocean Access
✓Dock with boat lift for up to 30ft
✓Fits boats up to 99ft
✓Bridge-free to bay
Est. waterfront~104 ft
DockOnly.com rating, not provided by the MLS or listing broker.
Nearest Bridge Clearances
Florida Keys, critical for tall/large vessels
No bridge data available for this location.
Loading nearby marinas…
Loading nearby sandbars…
Mortgage Calculator
Estimate your monthly payment for this waterfront property
20%
$999,000 down
%
Principal & Interest$25,918/mo
Property Tax (est. ~1.2%, varies by county)$4,995/mo
Home Insurance (est.)$250/mo
Total Monthly Payment$31,163
Loan Amount: $3,996,000Rate: 6.75%
Get Pre-QualifiedEstimated payments only. Actual rates and terms may vary.
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Navigation note: Navigation routes show the shortest mapped path to open water. A vessel taller than the binding bridge clearance may still reach open water via a longer alternate route that we don't currently map. Verify navigability with a local captain or surveyor before relying on it.