3742 Seagrape Street, Big Pine Key, FL 33043
$5,390,000
Property Type:
Residential
Bedrooms:
3
Baths:
3
Square Footage:
4,687
Lot Size (sq. ft.):
49,760
Status:
Active
Current Price:
$5,390,000
List Date:
6/06/2025
Last Modified:
3/28/2026
Overview
Description
...
(Read more)
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 Details MLS# 615356
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
- City
- Big Pine
- Off Shore Island
- No
- Mile Marker
- 29
- Marathon Neighborhood
- N/A
- Side
- Bay/Gulf
- Alternate Key #
- 1369187
- Handicap Access
- No
- Add'l Parcel #1
- SEE DOCUMENTS TAB
- Parcel #
- 00297040-000000
- Zoning
- IS - Improved Subivision District
- Deed Restrictions
- Unknown
- Legal
- See Documents Tab
- Taxes
- 28079.22
- Tax Year
- 2024
- Pub Sewer HkUp
- Yes
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
- 3
- Pool
- Yes
- Year Built
- 2014
- Lot SqFt
- 49760
- Lot Sqft Source
- Tax Records
- 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
- Total Units
- 0
Association Info
- Mandatory Home Owners Asc
- No
- Voluntary Home Owners Asc
- Yes
- 1st Right of Refusal
- No
- Association Fee $
- 0
Dockage
- Dock
- Composite
- Seawall
- Concrete
- Basin
- Yes
- Boat Lift
- Yes
- Boat Ramp
- Yes
More Information
Building Style
- Above Flood
- Yes
Pool Info
- Heated
- Yes
- In Ground
- Yes
- Concrete
- Yes
- Decked
- Yes
Remarks & Misc
- Remarks – Consumer
- 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!
- Directions
- From US-1, right on Key Deer Blvd all the way to Kyle Blvd, left onto Kyle, left onto Sea Grape Street. Property is on right side with gated entry.
Fee Includes
- None
- Yes
Tax Exemptions
- None
- Yes
Appliances
- Dishwasher
- Yes
- Disposal
- Yes
- Dryer
- Yes
- Microwave
- Yes
- Oven
- Yes
- Range
- Yes
- Refrigerator
- Yes
- Stainless Steel Appliance(s)
- Yes
- Washer
- Yes
Pets
- Pets Allowed
- Yes
Cooling
- Ceiling Fans(s)
- Yes
Heating
- Propane Stove
- Yes
Waterfront
- Bay Front
- Yes
- Gulf Front
- Yes
- Open Water
- Yes
Waterview
- Bay/Gulf View
- Yes
- Open Water View
- Yes
Floor
- Tile
- Yes
Interior Features
- Built-in Cabinets
- Yes
- Elevator
- Yes
- Granite Counter Top
- Yes
- Security System
- Yes
- Smoke Alarms
- Yes
- Split Bedroom
- Yes
- Tray Ceilings
- Yes
- Walk-in Closet(s)
- Yes
Property Condition
- Updated/Remodeled
- Yes
Specialty Rooms
- Laundry Room
- Yes
- Media Room
- Yes
- Utility Room
- Yes
Windows/Doors
- Impact Rstnce Doors
- Yes
- Impact Rstnce Window
- Yes
Vehicle Storage
- Carport
- Yes
- Covered Parking
- Yes
- Open Parking
- Yes
- Off Street Parking
- Yes
- Trailer Storage
- Yes
Construction
- CBS
- Yes
Land Size
- 1 Less Than 2 Acres
- Yes
Furnished
- Furnished
- Yes
Utilities
- Buyer to Verify
- Yes
- Cable Available
- Yes
- FKAA
- Yes
- Municipal Sewer
- Yes
- Propane
- Yes
- Whole House Generatr
- Yes
Porch/Balcony
- Open Porch/Balcony
- Yes
- Roof Top Deck
- Yes
Exterior Features
- Bar
- Yes
- Built-in Grill
- Yes
- Fencing
- Yes
- Hot Tub
- Yes
- Lighting
- Yes
- Outdoor Kitchen
- Yes
- Privacy Wall/Fence
- Yes
- Rain Gutters
- Yes
- Sprinkler System
- Yes
- Water Display
- Yes
Roof
- Concrete Roof
- 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; Off Street Parking; Open Parking; Trailer Storage
Furnished:
Furnished
Cooling:
Ceiling Fans(s)
Heating:
Propane Stove
Utilities:
Buyer to Verify; Cable Available; FKAA; Municipal Sewer; Propane; Whole House Generatr
Interior Features:
Built-in Cabinets; Elevator; Granite Counter Top; Security System; Smoke Alarms; Split Bedroom; Tray Ceilings; Walk-in Closet(s)
Specialty Rooms:
Laundry Room; Media Room; Utility Room
Appliances:
Dishwasher; Disposal; Dryer; Microwave; Oven; Range; Refrigerator; Stainless Steel Appliance(s); Washer
Exterior Features:
Bar; Built-in Grill; Fencing; Hot Tub; 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 Realty
Last Updated: March - 28 - 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.

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