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3742 Seagrape Street, Big Pine Key, FL 33043

$4,650,000
Property Type: Residential Bedrooms: 3 Baths: 3 Square Footage: 4,687 Lot Size (sq. ft.): 49,760 Status: Active
Current Price: $4,650,000 List Date: 4/30/2026 Last Modified: 8/05/2026

Overview

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 wate ...

Listing Details MLS# 619696

Location, Tax & Legal

Street #
3742
Street Name
Seagrape
Street Suffix
Street
Key/Island
Big Pine Key
State/Province
FL
Zip Code
33043
County
Monroe
Subdivision
Port Pine Heights (29.0)
Area
11 - Big Pine Key, No Name Key

Contract Information

Listing Board
Marathon/Lower Keys
As is Rght to Inspct
Yes
Species List
Yes

General Property Description

Realtor.COM Type
Residential - Single Family
Style
Single Family
Waterfront
Yes
Control Depth
4
Pool
Yes
Year Built
2014
Lot SqFt
49760
Acres
1.14
Living Apx SqFt
4687
SqFt Source
Property Data Card
Total Bedrooms
3
Full Baths
3
Total Baths
3
Rentals Allowed
With Restrictions
Min Rental Days
28

Association Info

Mandatory Home Owners Asc
No
1st Right of Refusal
No

Dockage

Dock
Composite
Seawall
Concrete

More Information

Building Style

Above Flood
Yes

Pool Info

Heated
Yes

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: Bay Front; Gulf Front; Open Water Waterview: Bay/Gulf View; Open Water View Dockage: Basin; Boat Lift; Boat Ramp Property Condition: Updated/Remodeled Vehicle Storage: Carport; Covered Parking; Guest Parking; Off Street Parking; Open Parking; RV Parking Open; Trailer Storage Furnished: Furnished Heating: Propane Stove Utilities: Buyer to Verify; Cable Available; FKAA; Municipal Sewer; Propane; Whole House Generatr Interior Features: Built-in Cabinets; Cathedral Ceilings; Drapes/Blinds Incl; Elevator; Entrance Foyer; Granite Counter Top; Storage; Walk-in Closet(s); Window Treatments Specialty Rooms: Laundry Room; Media Room; Theater Room; Utility Room Appliances: Dishwasher; Disposal; Dryer; Microwave; Oven; Refrigerator; Stainless Steel Appliance(s); Washer Exterior Features: Bar; Built-in Grill; Fencing; Lighting; Outdoor Kitchen; Privacy Wall/Fence; Rain Gutters; Sprinkler System; Water Display Pool Info: In Ground; Concrete; Decked Construction: CBS Floor: Tile Roof: Concrete Roof Pets: Pets Allowed Land Size: 1 Less Than 2 Acres
Listing Office: Ocean Sotheby's International
Last Updated: August - 05 - 2026
The data relating to real estate for sale on this web site comes in part from the Florida Keys MLS, Inc. Information provided is deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commeral use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. IDX data is deemed reliable but is not guaranteed accurate by the MLS.