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3742 Seagrape Street, Big Pine Key, FL 33043

Big Pine Key
Local realty services provided by:CENTURY 21 Hansen Realty
3742 Seagrape Street,Big Pine Key, FL 33043
$5,390,000
Virtual Tour
  • 3 Beds
  • 3 Baths
  • 4,687 sq. ft.
  • Single family
  • Active
Listed by: jo ann cook
Office: ocean sotheby's international
MLS#:A11877495
Source:RMLS

Price summary

  • Price:$5,390,000
  • Price per sq. ft.:$1,149.99

About this home

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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Home facts

  • Year built:2014
  • Listing ID #:A11877495
  • Added:4 day(s) ago
  • Updated:June 13, 2026 at 03:14 PM

Rooms and interior

  • Bedrooms:3
  • Total bathrooms:3
  • Full bathrooms:3
  • Flooring:Tile
  • Kitchen Description:Dishwasher, Disposal, Microwave
  • Living area:4,687 sq. ft.

Heating and cooling

  • Cooling:Central Air
  • Heating:Central
  • Central air:Yes

Structure and exterior

  • Roof:Concrete
  • Year built:2014
  • Building area:4,687 sq. ft.
  • Construction Materials:Block
  • Exterior Features:Lighting, Open

Schools

  • High school:Key West
  • Middle school:Marathon
  • Elementary school:Sugarloaf

Utilities

  • Water:Public
  • Sewer:Public Sewer

Finances and disclosures

  • Price:$5,390,000
  • Price per sq. ft.:$1,149.99
  • Tax amount:$28,079 (2024)

Features and amenities

  • Appliances:Dishwasher, Disposal, Microwave
  • Pool features:Concrete, Heated, In Ground

Parking

  • Parking description:Attached Carport, Circular Driveway, Covered, Driveway, Golf Cart Garage, Guest, Paver Block
  • Garage:Yes
  • Garage spaces:4
  • Carport spaces:4
All listings featuring the BMLS logo are provided by BeachesMLS Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright 2026 Beaches Multiple Listing Service, Inc. Information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. RMLS Member Broker: Christine Hansen

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