#613730, Lynn O Goodwin, P.A., Listing Office: Coldwell Banker Schmitt Real Estate Co.
Property details
About Gulf Of Mexico Blvd
Discover unparalleled privacy and luxury on SeaWatch Island, a breathtaking 13.2-acre private island in the heart of the Florida Keys. This one-of-a-kind property offers a rare opportunity with building entitlement in hand to build a custom 9,500 sq. ft. estate. In addition to the main residence, the property allows for the construction of a stand-alone garage and pool house, offering ample space for vehicles, recreational amenities, and more.Boating enthusiasts, take note! The island is a true boater's paradise, featuring a protected marina with a concrete bulkhead and multiple deep-water slip configurations. Designed for big boat dockage, the marina accommodates Vikings, sportfishers, catamarans, and other large vessels. Whether you're a passionate yachtsman or a fishing aficionado, this property provides a safe, convenient harbor for your fleet. Inquire for more details on this unparalleled dockage opportunity.Fully equipped with a Development Agreement and Building Right, SeaWatch Island simplifies the process of creating your dream sanctuary. The island's concrete bridge ensures easy access while maintaining the ultimate seclusion.The property offers expansive open water views and immediate access to the Atlantic Ocean and Gulf of Mexico, placing world-class fishing, boating, and diving at your fingertips. For additional convenience, MARATHON International Airport is just a short distance away, ensuring seamless connectivity to the rest of the world.This private oasis is more than a property--it's an exceptional lifestyle. Don't miss the chance to build your legacy on SeaWatch Island, where luxury and tranquility come together like nowhere else.
Highlights
Summary
- MLS Number: 613238
- MLS Name: Marathon
- Office Name: Coldwell Banker Schmitt Real Estate Co.
- Office Phone: (305) 743-5181
Information is deemed to be reliable, but is not guaranteed. © 2025 MLS. Based on information from the Marathon and Lower Keys Association of REALTORS®. The information on this sheet has been made available by the MLS and may not be the listing of the provider. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commercial 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.
Data displayed may be a portion of, and not a complete set of all listings published in the MLS.
Last updated on: 3/14/2025, 1:15:58 PM Eastern. If you have any questions regarding the accuracy of this data, please contact us at help@rockethomes.com.
Get an agent. Get a mortgage. Save big.¹

$9,999,999
Gulf Of Mexico Blvd
Sell your home with Rocket and save even more!
Seller rebate
0.5% sale price²
Price information
Property sales
We're sorry, we currently don't have property sales data for this listing.
Tax history
We're sorry, we currently don't have tax history data for this listing.
Nearby schools
5
Stanley Switlik Elementary School
Public District PK-5
4.3 mi
•3400 Overseas Hwy
9
Big Pine Academy
Public Charter PK-5
21.2 mi
•30220 Overseas Hwy
School ratings are a score out of 10, where 10 is the highest and 1 is the lowest.
Neighborhood
The neighbors living near this home have an average income of $63,026. The most common annual income of people living in Marathon, FL is between $35k-100k. The most common type of family is single, no kids. The majority of residents in this area have post secondary degree education.
Similar homes for sale
Frequently asked questions
About Gulf Of Mexico Blvd
This home is located at Gulf Of Mexico Blvd in Marathon, FL and zip code 33050. Features: 0 bathroom. It has been listed on Rocket Homes since February 20, 2025 and is currently priced at $9,999,999.
In February 2025, from all listings sold in Marathon, FL there were more than 1 sold above asking price, over 21 sold below and more than 4 were sold right at the asked price. In February 2025 in Marathon, FL there were 14.7% more homes for sale than in January. While the average time on the market in February 2025 was 99 days, the median list price was $954,312.