$5,900,000
$1M PRICE DROP

3742 Seagrape St Big Pine Key, FL 33043

Estimated payment $33,405/month

Total Views 8,927
3 Beds
3 Baths
4,687 Sq Ft
$1,259 Price per Sq Ft

Highlights

  • Property fronts gulf or ocean
  • Boat Lift
  • Concrete Pool
  • Boat Ramp
  • Home Theater
  • 1.14 Acre Lot

About This Home

Breathe in serenity during your escape to the ''The Castle'', a luxurious gated Gulf-front estate gracefully spanning 1.14 acres on Big Pine Key. This extraordinary retreat is a rare 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, including a 2023 Sea Cat, 14.5' skiff, and 2015 Chevrolet Silverado - this is ultimate Keys living without compromise!

Listing Agent

Ally Kelley

Ocean Sotheby's International License #SL3352184 Listed on: 06/06/2025

Ocean Sotheby's International

Co-Listing Agent

Jo Ann Cook

Ocean Sotheby's International License #3330898

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $28,079

Year Built

  • Built in 2014 | Remodeled

Lot Details

  • 1.14 Acre Lot
  • Property fronts gulf or ocean
  • Property Fronts a Bay or Harbor
  • Privacy Fence
  • Fenced
  • Sprinkler System
  • Property is zoned IS - Improved Subivision District

Home Design

  • Concrete Roof

Interior Spaces

  • 4,687 Sq Ft Home
  • Elevator
  • Furnished
  • Bar
  • Tray Ceiling
  • Ceiling Fan
  • Home Theater
  • Utility Room
  • Tile Flooring
  • Gulf Views

Kitchen

  • Oven
  • Range
  • Microwave
  • Dishwasher
  • Stainless Steel Appliances
  • Granite Countertops
  • Built-In or Custom Kitchen Cabinets
  • Disposal

Bedrooms and Bathrooms

  • 3 Bedrooms
  • Split Bedroom Floorplan
  • Walk-In Closet
  • 3 Full Bathrooms
  • Freestanding Bathtub

Laundry

  • Laundry Room
  • Dryer
  • Washer

Home Security

  • Home Security System
  • Impact Glass
  • Fire and Smoke Detector

Parking

  • Carport
  • Open Parking
  • Off-Street Parking

Pool

  • Concrete Pool
  • Heated In Ground Pool
  • Spa
  • Pool Deck

Outdoor Features

  • Seawall
  • Boat Lift
  • Boat Ramp
  • Dock made with Composite Material
  • Balcony
  • Outdoor Water Feature
  • Outdoor Kitchen
  • Exterior Lighting
  • Attached Grill
  • Rain Gutters

Utilities

  • Propane Stove
  • Whole House Permanent Generator
  • Propane
  • Public Hookup Available For Sewer
  • Cable TV Available

Community Details

  • No Home Owners Association
  • Port Pine Heights Subdivision
  • Rental Restrictions

Listing and Financial Details

  • Assessor Parcel Number 00297040-000000

Home Details

Home Type

Single Family

Est. Annual Taxes

$28,079

Year Built

Built in 2014 | Remodeled

Lot Details

0

Listing Details

  • Property Type: Residential
  • Style: Single Family
  • Additional Assessor Parcel Number 1: SEE DOCUMENTS TAB
  • As Is Right To Inspect: Yes
  • First Right of Refusal: No
  • Mandatory HOA: No
  • Voluntary HOA: Yes
  • Dockage Dock: Composite
  • Dockage Seawall: Concrete
  • Fee Includes: None
  • Handicap Access: No
  • Key Island: Big Pine Key
  • Limited Representation: No
  • Marathon Neighborhood: N/A
  • Mile Marker: 29.00
  • Min Rental Days: 28.00
  • M L S Identifier: 20060123165453488875000000
  • Off Shore Island: No
  • Pets: Pets Allowed
  • Property Group I D: 19990816212109142258000000
  • Side: Bay/Gulf
  • State Province: FL
  • Taxes: 28079.22
  • Vehicle Storage: Carport, Trailer Storage, Covered Parking, Off Street Parking, Open Parking
  • Year Built: 2014
  • Alternate Key Number: 1369187
  • Cooling Heating: Ceiling Fans(s)
  • Lot Sq Ft: 49760.00
  • Pool Info: In Ground, Decked, Concrete
  • Pool Info Heated: Yes
  • Porch Balcony: Open Porch/Balcony, Roof Top Deck
  • Species List: Yes
  • Tax Exemptions: None
  • Building Style Above Flood: Yes
  • Estimated Living Sq Ft: 4687.00
  • Property Condition: Updated/Remodeled
  • Sewer Hook Up: Yes
  • Statistical Purposes Only: No
  • Special Features: None
  • Property Sub Type: Detached

Interior Features

  • Interior Amenities: Split Bedroom, Built-in Cabinets, Tray Ceilings, Walk-in Closet(s), Smoke Alarms, Security System, Elevator, Granite Counter Top
  • Total Bathrooms: 3.00
  • Full Bathrooms: 3
  • Appliances: Washer, Stainless Steel Appliance(s), Disposal, Microwave, Oven, Range, Refrigerator, Dishwasher, Dryer
  • Floor: Tile
  • Specialty Rooms: Laundry Room, Utility Room, Media Room
  • Windows/Doors: Impact Rstnce Window, Impact Rstnce Doors
  • Total Bedrooms: 3

Exterior Features

  • Dockage: Boat Lift, Basin, Boat Ramp
  • Waterfront: Bay Front, Open Water, Gulf Front
  • Waterfront: Yes
  • Construction: CBS
  • Exterior Features: Bar, Water Display, Sprinkler System, Privacy Wall/Fence, Outdoor Kitchen, Lighting, Hot Tub, Rain Gutters, Fencing, Built-in Grill
  • Roof: Concrete Roof
  • Waterview: Bay/Gulf View, Open Water View
  • Pool: Yes

Utilities

  • Utilities: FKAA, Propane, Cable Available, Whole House Generatr, Buyer to Verify, Municipal Sewer
  • Heating: Propane Stove

Lot Info

  • Deed Restrictions: Unknown
  • Parcel Number: 00297040-000000
  • Land Size: 1 Less Than 2 Acres
  • Acres: 1.14

Rental Info

  • Rentals Allowed: With Restrictions
  • Furnished: Furnished

Tax Info

  • Tax Year: 2024

Map

Range of Values:

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Value Increase
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Percent Increase
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Adjusted for Inflation
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Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2024 $23,601 $3,292,836 $1,255,536 $2,037,300
2023 $23,601 $3,036,096 $1,381,879 $1,654,217
2022 $21,448 $2,707,955 $1,031,803 $1,676,152
2021 $19,742 $2,085,231 $531,694 $1,553,537
2020 $19,855 $2,076,078 $505,373 $1,570,705
2019 $18,494 $1,960,891 $0 $0
2018 $18,669 $1,924,329 $485,524 $1,438,805
2017 $18,617 $1,934,751 $0 $0
2016 $16,300 $1,643,627 $0 $0
2015 $14,306 $1,402,884 $0 $0
2014 $2,963 $212,810 $0 $0
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft
11/10/2025 11/10/25 Price Changed $5,900,000 -8.5% $1,259 / Sq Ft
07/17/2025 07/17/25 Price Changed $6,450,000 -7.2% $1,376 / Sq Ft
06/06/2025 06/06/25 For Sale $6,950,000 -- $1,483 / Sq Ft
Source: Marathon and Lower Keys Association of REALTORS®

Purchase History

Date Type Sale Price Title Company
Special Warranty Deed $560,000 Attorney
Certificate Of Transfer $100 --
Warranty Deed -- Keys Title Abstract Company
Warranty Deed $59,200 --
Source: Public Records

Mortgage History

Date Status Loan Amount Loan Type
Previous Owner $780,000 Purchase Money Mortgage
Source: Public Records

Source: Marathon and Lower Keys Association of REALTORS®

MLS Number: 615356

APN: 00297040-000000