For sale Residential

Listed Sep 29, 2026

$2,390,000 Est. $15,808/mo

818 39th

  • 5

    Beds

  • 4

    Baths

  • 2,565

    Sq ft

The story

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.

Facts & features

Home type

Residential

Year built

2025

Price per sq ft

$932

Mortgage calculator

Estimated monthly payment

$15,808 /mo

7% rate · 30-yr fixed · 20% down

  • Principal & interest $12,721
  • Property tax $2,390
  • Insurance $697

Includes principal, interest, taxes & insurance.

Your Property Journey

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Listing Broker

Coldwell Banker Schmitt Real Estate Co.

Broker Name

Coldwell Banker Schmitt Real Estate Co.

Agent

Samuel Davis Williams