3742 Seagrape Street, Big Pine Key, FL 33043

Big Pine Key
Local realty services provided by:Better Homes and Gardens Real Estate Florida 1st
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.

Contact an agent

contact an agent

Yes, I would like more information. Please use and/or share my information with a BHGRE®  affiliated agent to contact me about my real estate needs. By clicking Send message, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a BHGRE®  affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (CENTURY 21® , Coldwell Banker® , Corcoran® , ERA® , Sotheby's International Realty® ). I acknowledge that I have read and agree to theTerms of useandPrivacy notice

Home facts

  • Year built:2014
  • Listing ID #:A11877495
  • Added:1 day(s) ago
  • Updated:June 09, 2026 at 02:52 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: Gene Whiddon III <gwhiddon@bhgfirst.com>

New listings near 3742 Seagrape Street