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About This Home

This 3-bedroom, 3-bathroom single family at 3742 Seagrape Street in Big Pine Key, FL is listed for $4,995,000 ($1,066 per sqft). Built in 2014, the home offers 4,687 sqft of living space on a 1.14 acres lot.

Agent Description

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!

Key Features

  • Built in 2014
  • 1.14 acre lot
  • Private pool
  • Waterfront

Property Details

3 full
2014

Amenities

PoolWaterfrontViewRV Parking

Monthly Cost Estimate

$26,714/mo

20% down · 6.5% · 30 years

Principal$3,612
Interest$21,645
Insurance$1,457

Estimates only. Actual payments may vary.

Location

3742 Seagrape Street

Big Pine Key, FL 33043

Port Pine Heights (29.0)

Features & Amenities

Interior Features

Built-in CabinetsGranite Counter TopElevatorStorageWalk-in Closet(s)Media Room

Exterior Features

BarBuilt-in GrillFencingRain GuttersLightingOutdoor KitchenPrivacy Wall/FenceSprinkler SystemWater Display

Property Details

Flooring

Tile

Construction

CBS

Views

Water

Pool Features

PorchDeck

Parking

OpenRV

Heating

Propane StovePropane (Heating)

Appliances

WasherDryerDishwasherRefrigeratorOvenMicrowaveDisposalStainless Steel Appliance(s)

Questions & Answers

This 3-bedroom, 3-bathroom single family at 3742 Seagrape Street is listed at $4,995,000 ($1,066/sqft). The estimated monthly payment is $21,645 based on 20% down at 6.5% interest.

Key features include: Built in 2014, 1.14 acre lot, Private pool, Waterfront. Interior Features: Built-in Cabinets, Granite Counter Top, Elevator. Exterior Features: Bar, Built-in Grill, Fencing.

This property is listed by Ally Kelley and can be reached at 7274590493 or akelley@oceansir.com.

AK

Ally Kelley

Agent at Ocean Sotheby's International

(727) 459-0493

Listed by Ocean Sotheby's International · View on Broker Site

MLS# 619696· Source: listhub· Updated 32 days ago

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.

3742 Seagrape Street, Big Pine Key, FL 33043

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