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Home > Key Biscayne > A11990382

A11990382, Home in Key Biscayne for Sale

640 S Mashta Dr, Key Biscayne, FL, 33149
SALE
$16,800,000
Est. Mortgage: $75,543/mo Get pre-qualified
34 of 41 for Sale
4Beds
4 Baths
3,620 ft2 (336 m2)
Lot Size 15,000 ft2 (1,394 m2)
Listed on: Apr 2, 2026
Days on Market: 0
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Description

Welcome to your own slice of paradise! Enjoy breathtaking sunsets from your private dock on this waterfront property boasting 100 feet of direct Biscayne Bay frontage. Ideally located on Mashta Island. Set on a 15,000 SF lot, the home features 5 beds, 5 baths, including 2 bayfront primary suites with stunning views, impact windows and doors throughout. The open-concept layout flows seamlessly from the living and dining areas to the modern kitchen and out to the pool and entertainment patio, with floor-to-ceiling glass doors that open to blend indoor and outdoor living. Tranquil guest suite upstairs offering privacy and views. It also features an oversized 2-car garage, covered parking, and a spacious driveway for guests. Perfect to move in, renovate, or build your dream waterfront estate

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A11990382 Condo # for Sale in Key Biscayne, Key Biscayne
  • Listed on:

    Apr 2, 2026
  • Days on Market:

    0
  • Taxes:

    $155,651 per year
  • Tax Year:

    2025
  • Year Built:

    1968
  • Occupancy:

    n/a
  • Parking:

    • Garage Spaces

      2
    • Open Parking

      Yes
    • Covered Spaces

      2
    • Parking Features

      Driveway, Guest
    • Attached Garage

      Yes
  • Interior:

    • Flooring

      Other
    • Appliances

      Dishwasher
    • Cooling

      Central Air
    • Heating

      Other
    • Interior Features

      First Floor Entry, Entrance Foyer, Pantry, Split Bedroom, Vaulted Ceiling(s), Walk-In Closet(s), Garage Converted
    • Other Equipment

      Automatic Garage Door Opener
  • Exterior:

    • View

      Bay, Garden
    • Architectural Style

      Attached, Other
    • Construction Materials

      Concrete Block Construction
    • Exterior Features

      Other
    • Direction Faces

      East
    • Waterfront Features

      Ocean Access, Ocean Front
    • Pool Features

      In Ground
    • Roof

      Barrel Roof
  • Community:

    • Subdivision Name

      MASHTA ISLAND
    • Typeof Association

      None
    • Community Features

      Public Road
    • Elementary School

      Keybiscayne
    • Middle Or Junior School

      Ponce De Leon
    • High School

      Coral Gables
  • LOT:

    • Lot Features

      Less Than 1/4 Acre Lot
    • Lot Size Square Feet

      15,000
    • Lot Size Units

      Square Feet

Description

Welcome to your own slice of paradise! Enjoy breathtaking sunsets from your private dock on this waterfront property boasting 100 feet of direct Biscayne Bay frontage. Ideally located on Mashta Island. Set on a 15,000 SF lot, the home features 5 beds, 5 baths, including 2 bayfront primary suites with stunning views, impact windows and doors throughout. The open-concept layout flows seamlessly from the living and dining areas to the modern kitchen and out to the pool and entertainment patio, with floor-to-ceiling glass doors that open to blend indoor and outdoor living. Tranquil guest suite upstairs offering privacy and views. It also features an oversized 2-car garage, covered parking, and a spacious driveway for guests. Perfect to move in, renovate, or build your dream waterfront estate
Any questions about Key Biscayne?
Contact our Key Biscayne Real Estate Specialist today.
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