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3742 Seagrape Street

Big Pine Key, FL 33043

3 beds
3 baths
4,687 sqft
~1 acre lot
$1,482 per sqft
2014 build
– on site

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 courtesy of FLKMLS / Ocean Sotheby's International

Last checked: Checking… • Last updated Jun 7, 2025 •

MLS# 615356 —

The Building

Year Built:

2014
Construction:

CBS
Style:

Single Family
Exterior Features:

Bar, Water Display, Sprinkler System, Privacy Wall/Fence, Outdoor Kitchen, Lighting, Hot Tub, Rain Gutters, Fencing, Built-in Grill
Windows/Doors:

Impact Rstnce Window, Impact Rstnce Doors
Roof:

Concrete Roof
Porch/Balcony:

Open Porch/Balcony, Roof Top Deck

Interior

Specialty Rooms:

Laundry Room, Utility Room, Media Room
Furnished:

Furnished
Interior Features:

Split Bedroom, Built-in Cabinets, Tray Ceilings, Walk-in Closet(s), Smoke Alarms, Security System, Elevator, Granite Counter Top
Floor:

Tile

Location

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.

The Property

Parcel #:

00297040-000000
Property Condition:

Updated/Remodeled
Lot SqFt:

49760.00
Acres:

1.14
Land Size:

1 Less Than 2 Acres
Waterfront:

Bay Front, Open Water, Gulf Front
Zoning:

IS - Improved Subivision District
Waterfront:

Yes
Waterview:

Bay/Gulf View, Open Water View

Listing Agent

Contact info:

Taxes

Tax Year:

2024
Taxes:

28079.22
Tax Exemptions:

None

Beds

Total Bedrooms:

3

Baths

Total Baths:

3.00
Full Baths:

3

The Listing

UnBranded Virtual Tour:

https://bcove.video/4kwJCEk

Heating & Cooling

Heating:

Propane Stove
Cooling:

Ceiling Fans(s)

Utilities

Utilities:

FKAA, Propane, Cable Available, Whole House Generatr, Buyer to Verify, Municipal Sewer
Pub Sewer HkUp:

Yes

Appliances

Appliances:

Washer, Stainless Steel Appliance(s), Disposal, Microwave, Oven, Range, Refrigerator, Dishwasher, Dryer

The Community

Subdivision:

Port Pine Heights (29.0)
Pool Info:

In Ground, Decked, Concrete
Pool Info: Heated:

Yes
Dockage:

Boat Lift, Basin, Boat Ramp
Dockage: Dock:

Composite
Dockage: Seawall:

Concrete
Pets:

Pets Allowed
Fee Includes:

None
Association Info: Mandatory Home Owners Asc:

No
Association Info: Voluntary Home Owners Asc:

Yes

Parking

Vehicle Storage:

Carport, Trailer Storage, Covered Parking, Off Street Parking, Open Parking

Monthly cost estimate

Asking price

$6,950,000

Expense	Monthly cost
Mortgage	$37,215
Taxes	$2,339
Insurance	$1,911
Utilities	$197 See report
Total	$41,662/mo.^*
	^*This is an estimate

Explore the Area

My Commute

From

Walk Score®

Provided by WalkScore® Inc.

Bike Score®

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Air Pollution Index

Provided by ClearlyEnergy

Sale history

Date	Event	Source	Price	% Change
6/6/25 Jun 6, 2025	Listed / Active	FLKMLS	$6,950,000	612.8% (29.6% / YR)
9/23/04 Sep 23, 2004		FLKMLS	$975,000

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This house located in Big Pine Key, FL 33043 is currently for sale for $6,950,000. 3742 Seagrape Street is a 4,687 square foot house with 3 beds and 3 baths that has been on Estately for 12 days. This house is in the attendance area of Marathon Middle High School.

Listing Courtesy of: FLKMLS and Ocean Sotheby's International.

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