Ad #7650598
MLS #619696
Escape to ''The Castle'', a luxurious gated Gulf-front estate
3742 Seagrape St, Big Pine Key, Florida, 33043
$4,995,000
3Beds
3Baths
4,687Sqft
1.140Acres
About this property
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!
Property Features
3 Beds
3 Baths
4,687 Sqft
Built in 2014
1.140 Acres
Open, RV
Siding: CBS
Concrete Roof
Has Swimming Pool
Propane Stove, Propane (Heating)
$30,568 / yr property tax
Monroe County
Port Pine Heights (2) Community
Additional Photos
Contact Information
Ally Kelley
Ocean Sotheby's International Realty
727-459-0493
Location
Listing Agent: Ally Kelley (License #: SL3352184) 727-459-0493
Broker: Ocean Sotheby's International Realty 305-735-4447 Listing Site
Copyright © 2026 Marathon and Lower Keys Association of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Broker: Ocean Sotheby's International Realty 305-735-4447 Listing Site
Copyright © 2026 Marathon and Lower Keys Association of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
BarrierFreeHome.com
Printed Jun 9, 2026
Photo Gallery
$4,995,000
3
Beds
3
Baths
4,687
Sqft
3742 Seagrape St, Big Pine Key, Florida, 33043
By contacting this agent you agree to these Terms and Conditions.
MLS# 619696
Escape to ''The Castle'', a luxurious gated Gulf-front estate
$4,995,000
3742 Seagrape St, Big Pine Key, Florida, 33043
3
Beds
3
Baths
4,687
Sqft
1.140
Acres
$4,995,000
3742 Seagrape St, Big Pine Key, Florida, 33043
3 Beds
3 Baths
4,687 Sqft
1.140 Acres
Accessibility Features
Accessible Elevator Installed
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!
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Property Details
HOME DETAILS
3 Beds
3 Baths
4,687 Sqft
Built in 2014
1.140 Acres
EXTERIOR
Open, RV
Siding: CBS
Concrete Roof
Has Swimming Pool
INTERIOR
Propane Stove, Propane (Heating)
FINANCIAL & COMMUNITY
$30,568 / yr property tax
Monroe County
Port Pine Heights (2) Community
See More Details
Location
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Ad Statistics
Ad Number
7650598
Viewed
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Listing Status
Active
Added
Apr 30, 2026
Last Refresh
Jun 08, 2026 09:04:43 PM
Listing Information
Data Source
Marathon and Lower Keys Association of Realtors
Source Property ID
619696
Listing Agent: Ally Kelley (License #: SL3352184) 727-459-0493
Broker: Ocean Sotheby's International Realty 305-735-4447 Listing Site
Copyright © 2026 Marathon and Lower Keys Association of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Broker: Ocean Sotheby's International Realty 305-735-4447 Listing Site
Copyright © 2026 Marathon and Lower Keys Association of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
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