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New construction
  • $2,390,000

    818 39th St, Marathon, FL 33050

    5beds
    2,565sqft
    : 
    $14,941/mo
    Get pre-qualified
    Single Family Residence
    Built in 2025
    5,662 Square Feet Lot
    $-- Zestimate®
    $932/sqft
    $183/mo HOA

    What's special

    Private heated poolStriking waterfall-edge islandMetal roofQuartz countertopsHigh ceilingsSophisticated coastal aestheticOpen-concept layout
    Welcome to Emerald Flats, a gated waterfront enclave in the heart of Marathon where refined coastal design meets the Florida Keys lifestyle. Designed & Built by D'Asign Source, this beautifully furnished 5-bedroom, 4-bath residence was completed in 2025 and offers 2,565 square feet of thoughtfully designed living space, with high ceilings, an open-concept layout, impact-rated windows and doors, and a metal roof. Elevated on concrete pilings, the home is designed for both style and durability while creating generous covered space beneath the residence. Inside, the light-filled living areas showcase a sophisticated coastal aesthetic with seamless flow between the kitchen, dining, and gathering spaces. The kitchen is a true centerpiece, featuring quartz countertops, KitchenAid stainless steel appliances, crisp white cabinetry, a striking waterfall-edge island, and generous seating and prep space. Expansive glass doors open to covered balconies, extending the living space outdoors, while a separate bar and entertainment area adds another polished touch for hosting family and friends. Outdoor living is equally impressive, with a private heated pool, tropical landscaping, expansive paver areas, and multiple covered spaces ideal for relaxing or entertaining. Boaters will appreciate the included Boat Slip #30, reported to measure approximately 45 feet long by 14.75 feet wide, offering convenient private docking within the Emerald Flats Marina community. The slip is separately identified by Monroe County as a marina condominium boat-slip parcel. Fully furnished and move-in ready, this home offers an exceptional combination of luxury, boating access, modern construction, and effortless island living in one of Marathon's desirable waterfront communities.
    4 days
    397
    16

    Likely to sell faster than

    Zillow last checked:

    Listing updated:

    Listed by:

    Samuel Davis Williams 305-289-6559,

    Coldwell Banker Schmitt Real Estate Co.,

    Lisa Silva 305-481-5077,

    Coldwell Banker Schmitt RE Co.

    Source: FLKMLS,MLS#: 621439MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 5
      • Bathrooms: 4
      • Full bathrooms: 4
      Cooling
      • Central Air, Ceiling Fans(s)
      Appliances
      • Included: Washer, Dryer, Dishwasher, Refrigerator, Range, Oven, Microwave, Disposal, Stainless Steel Appliance(s)
      • Laundry: Laundry Room
      Features
      • Built-in Features, Walk-in Closet(s), Bar, Quartz Countertops
      • Flooring: Vinyl
      • Furnished: Yes
      Interior area
      • Total structure area: 2,565
      • Total interior livable area: 2,565 sqft

      Property

      Features
      • Patio & porch: Open Porch/Balcony
      • Has private pool: Yes
      • Pool features: In Ground
      Lot
      • Size: 5,662 Square Feet
      Details
      • Parcel number: 00337391001800
      • Zoning: RH - Residential High

      Construction

      Type & style
      • Home type: SingleFamily
      • Property subtype: Single Family Residence
      Materials
      • CBS
      Condition
      • New Construction
      • New construction: Yes
      • Year built: 2025

      Utilities & green energy

      • Electric: Cat 5
      • Utilities for property: Water Separate Meter, Elect Separate Meter

      Community & HOA

      Community
      • Features: Beach, Bike Paths
      • Security: No Security
      • Subdivision: Marathon Beach (49.0)
      HOA
      • Has HOA: Yes
      • Services included: Common Area Mnt
      • HOA fee: $550 quarterly
      Location
      • Region: Marathon

      Financial & listing details

      • Price per square foot: $932/sqft
      • Tax assessed value: $399,591
      • Annual tax amount: $2,436
      • Date on market: 9/29/2026

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        DateEventPrice
        9/29/2026Listed for sale$2,390,000-1.4%$932/sqft
        Source: FLKMLS #621439 Report a problem
        10/17/2025Listed for sale$2,425,000$945/sqft
        Source: Key West AOR #616906 Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$2,436 +28%$207,064 +10%
        2024$1,902 +3.2%$188,240 +10%
        2023$1,844 +172.1%$171,127 +137.1%
        2022$678 $72,160
        Find assessor info on the county website

        Monthly payment

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        Payment breakdown

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        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
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        Climate risks

        Neighborhood: 33050

        Getting around

        40 / 100
        Car-Dependent
        82 / 100
        Very Bikeable

        Nearby schools

        GreatSchools rating

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