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$3,599,000

13759 Overseas Highway, MARATHON FL, 33050

Built in1950
Property typeCommercial

Overview

Active

Listed Jun 16, 2026

Updated 6h ago

Rare Florida Keys mixed-use development opportunity with approx. 124,300 sq. ft. of uplands plus additional bay bottom ownership. Property includes 4 verified building rights with Letter of Site Condition on file. Existing improvements include a duplex and single-family home. Mixed Use (MU) zoning allows for a wide range of future possibilities, including commercial, residential, storage facility, marina-related use, workforce housing, market-rate housing, or potential subdivision into multiple parcels. Current zoning allows up to 6 market-rate units per acre or up to 15 affordable units per acre, buyer to verify per City of Marathon. The property offers approximately 216 feet of highway frontage, plus additional east-side access through an access easement, creating multiple entry points and flexibility for future site planning. A neighboring gas station adds convenience and commercial synergy for future development concepts. A unique feature is the sleeper asset of this property which is ownership/control of bay bottom extending behind approximately 12 lots along Cocoplum Drive, creating potential value tied to dockage, marina concepts, water access, assemblage opportunities, or long-term redevelopment. Deep-water access, good depth, multiple boating configurations, and proximity to the marked channel entrance add to the site's appeal. Large mixed-use tracts with water access and verified building rights are increasingly rare in the Florida Keys, making this a strong opportunity for an investor, developer, marina operator, or long-term land holder. Seller states property will be delivered vacant and free of personal belongings before closing. Buyer to verify zoning, density, building rights, permitted uses, dockage, water depth, access easements, permitting, and development potential.

 

Courtesy of Sam Williams

Based on information from DASH - Coldwell Banker (CB) as of 10/21/2026. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. The display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent. 

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Data last updated 5:05 AM UTC, 10/21/2026

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