Skip main navigation
For sale
  • Price cut: $100K (6/8)
    $1,300,000

    574-576 99th St, Marathon, FL 33050

    4beds
    1,854sqft
    : 
    $7,594/mo
    Get pre-qualified
    Duplex
    Built in 1959
    -- sqft lot
    $-- Zestimate®
    $701/sqft
    $-- HOA

    What's special

    Solar-lit dock pilingsGranite countertopsCovered parkingTile flooring throughoutImpact windows and doorsString lightingStainless steel appliances
    Beautifully renovated and fully turnkey duplex located on a deep-water canal in the heart of Marathon. This rare income-producing property features TWO spacious homes, 2BD/2BA on each side, each unit offers approximately 927 sq. ft. of updated coastal living with impact windows and doors, granite countertops, stainless steel appliances, tile flooring throughout, and covered parking. Renovated in 2020, the property blends modern finishes with the relaxed Florida Keys boating lifestyle. A true boater's dream, each side offers its own 30' concrete dock and seawall (60' total) complete with 30-amp shore power and fresh water hookups. Enjoy quick ocean access and easy Gulf access via Vaca Cut, making this an exceptional setup for anglers and boating enthusiasts alike. The waterside outdoor spaces are designed for entertaining and enjoying the Keys lifestyle, featuring string lighting, solar-lit dock pilings, under-dock fish lights that attract snapper and tarpon, and frequent manatee visits along the canal. Located directly next door to Oceanfront Park, owners and guests enjoy immediate access to one of Marathon's premier waterfront parks offering pickleball courts, a dog park, kayak launch, open green space, waterfront walking trails, playgrounds, exercise equipment and community events. Conveniently located 4 miles from Sombrero Beach, and 1.5 miles from Coco Plum Beach. Currently tenant occupied with both units rented month-to-month. This property also has strong vacation rental potential. Ideal opportunity to live in one side while renting the other, or maximize income potential with a fully turnkey investment property in one of the Florida Keys' most desirable boating communities. Current Insurances are very reasonable: $3,841 Flood (Covers both sides) 576 - $4,303 Wind 574 - $4,129 Wind 576 - $860 HO/Liability 574 - $721 HO/Liabilty (Pictures are of 576 99th, 574 is the same layout/finishes. Access can be arranged
    103 days
    |
    317
    |
    20
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Alexia Mann 404-988-2259,

    Seafarer Realty LLC

    Source: FLKMLS,MLS#: 619866MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 4
      • Bathrooms: 4
      • Full bathrooms: 4
      Heating
      • Has Heating (Unspecified Type)
      Cooling
      • Central Air
      Appliances
      • Included: Washer, Dishwasher, Refrigerator, Range, Microwave, Disposal, Stainless Steel Appliance(s)
      Features
      • Granite Counters
      • Flooring: Tile
      • Furnished: Yes
      Interior area
      • Total structure area: 1,854
      • Total interior livable area: 1,854 sqft

      Property

      Features
      • Patio & porch: Patio
      • On waterfront: Yes
      Lot
      • Size: 5,220 Square Feet
      Details
      • Parcel number: 00351980000100
      • Zoning: RH - Residential High

      Construction

      Type & style
      • Home type: MultiFamily
      • Architectural style: Conch
      • Property subtype: Duplex
      Materials
      • CBS
      Condition
      • Updated/Remodeled
      • New construction: No
      • Year built: 1959

      Community & HOA

      Community
      • Features: Bike Paths
      • Subdivision: Coral Colony (52.0)
      HOA
      • Has HOA: No
      • Services included: None
      Location
      • Region: Marathon

      Financial & listing details

      • Price per square foot: $701/sqft
      • Annual tax amount: $6,476
      • Date on market: 5/12/2026
      • Listing terms: No Seller Finance,Cash,Conventional,FHA

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        DateEventPrice
        6/8/2026Price change$1,300,000-7.1%$701/sqft
        Source: MLKAR #619866 Report a problem
        5/12/2026Listed for sale$1,400,000-15.2%$755/sqft
        Source: Key West AOR #619866 Report a problem
        4/1/2026Listing removed$1,650,000$890/sqft
        Source: FLKMLS #617878 Report a problem
        2/2/2026Price change$1,650,000-2.9%$890/sqft
        Source: FLKMLS #617878 Report a problem
        12/31/2025Listed for sale$1,700,000+106.1%$917/sqft
        Source: Key West AOR #617878 Report a problem
        3/26/2021Sold$825,000$445/sqft
        Source: FLKMLS #589125 Report a problem

        Public tax history

        Tax history is unavailable.

        Monthly payment

        Est. payment

        Payment breakdown

        Explore the cost of this home by adjusting the details. Changes won't be saved.
        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
        See how much you could borrow to make a competitive offer.

        Climate risks

        Neighborhood: 33050

        Getting around

        28 / 100
        Car-Dependent
        53 / 100
        Bikeable

        Nearby schools

        GreatSchools rating

        A local agent can set up tours, give advice and negotiate with sellers.

        Browse local experts

        Similar homes