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9300 Overseas Highway, 
Marathon, FL 33050

$21,000,000

5

Beds

9

Baths

8,573

Sq Ft

Single Family

Active

Listed by

Brian Schmitt
Coldwell Banker Schmitt Real Estate Co.

Last updated:

January 28, 2026, 10:52 AM

MLS#

A11720611

Source:

SEFMLS

About This Home

9300 Overseas Highway

This breathtaking five-acre oceanfront estate, with 244 feet of private ocean frontage, is the crown jewel of the Florida Keys. From the moment you pass through the gates, you'll be captivated by a world of elegance, privacy, and unparalleled amenities. At the heart of this premier estate lies a resort-style pool oasis. The custom-designed 5,600+/- square foot main residence showcases exquisite craftsmanship. A separate 2,999 sq.ft. guest house offers a private retreat. A marina provide direct access to the world-famous waters of the Keys. Enjoy the gourmet kitchen, guest suites, movie theater and even the potential for a private hangar. This estate isn't just a home; it's a lifestyleyour personal resort blending tropical serenity, architectural excellence, and unmatched prestige.

Home Facts

Single Family

9 Baths

5 Bedrooms

Built in 2007

Price Summary

21,000,000

$2,449 per Sq. Ft.

MLS #:

A11720611

Last Updated:

January 28, 2026, 10:52 AM

Rooms & Interior

Bedrooms

Total Bedrooms:

5

Bathrooms

Total Bathrooms:

9

Full Bathrooms:

6

Interior

Living Area:

8,573 Sq. Ft.

Structure

Structure

Architectural Style:

Detached, Two Story

Building Area:

18,482 Sq. Ft.

Year Built:

2007

Lot

Lot Size (Sq. Ft):

216,901

Finances & Disclosures

Finances

Price:

$21,000,000

Price per Sq. Ft:

$2,449 per Sq. Ft.

9300 Overseas Highway

Brian Schmitt

(305) 289-6482

(305) 289-6482

Contact
Source:SEFMLS
Information deemed reliable but not guaranteed. Information is provided, in part, by Greater Miami MLS. This information being provided is for consumer's personal, non-commercial use and may not be used for any other purpose other than to identify prospective properties consumers may be interested in purchasing.

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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.