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3742 Seagrape Street, Big Pine Key, FL - photo 1

$4,450,000

3742 Seagrape Street

Big Pine Key, FL 33043

Estimated payment $23,077/month

HOA not listed, not included · estimated tax · estimated insurance · 20% down, 6.5%, 30 yr

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3Beds
3Baths
4,687Sq Ft
$949Price/Sq Ft

Preferred partner

Kinsfolk Realty

Kinsfolk Signature Realty

Powered by Hometrino

(813) 602-0498

Highlights

Built in 2014
49,658 sqft Lot

About This Home

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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Facts & features

Bedrooms & bathrooms

  • •Bedrooms:3
  • •Bathrooms:3
  • •Full bathrooms:3
  • •Half bathrooms:0

Heating

  • •Has Heating:Yes

Interior area

  • •Total structure area:4,687 sqft
  • •Total interior livable area:4,687 sqft

Parking

  • •Parking features:N/A
  • •Garage spaces:0
  • •Has attached garage:No

Lot

  • •Size:49,658 sqft

Details

  • •Parcel number:N/A

Type & style

  • •Home type:Single Family Residence
  • •Property subtype:Residential

Materials

  • • N/A

Condition

  • •Year built:2014

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Price history

DateEventPrice
10/30/2026Listed for sale$4,450,000$949/sqft

Listing Agent

Ally Kelley

Ocean Sotheby's International

Brokerage Phone: 305-735-4447

Source: Florida Keys MLS · MLS #619696

Data Powered by Home Junction, Inc.

Nearby

Dining

Sweet Dreams Specialty Cakes

1.9 mi

Beaches

Long Beach

6.9 mi

Calusa Beach

8.9 mi

Loggerhead Beach

9.0 mi

Nearby amenity locations include data © OpenStreetMap contributors.