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3 Beds
3 Baths
4,687 sqft

$4,650,000

3742 Seagrape St, Big Pine FL, 33043

Price per sqft$992.11
Built in2014
Property size4,687 sqft
Property typeResidential

Overview

Active

Listed Apr 28, 2025

Updated Aug 10

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.

$30,937/mo

Est. mortgage payment based on a $4,650,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
A11877495

Interior Features

Bedrooms
3
Bathrooms
3
Cooling
Yes
Heating
Yes
Basement
No

Exterior Features

Lot Size
0.4 Acres

Other Property Details

Taxes
$28,079
Tax Frequency
Annually
Garage
Yes
View
Yes
Pets Allowed
Yes
Furnished
Yes
Pool
Yes
Waterfront
Yes
MLS provider logo

Based on information from the Miami Association of REALTORS®. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS.  All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent. The listing broker’s offer of compensation is made only to participants of the MLS where the listing is filed. 

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Data last updated 2:54 AM UTC, 8/10/2026.

Listed by:  Ocean Sotheby's International, 305-735-4095

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