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Home > Key Biscayne > A11896953

A11896953, Home in Key Biscayne for Sale

640 S Mashta Dr, Key Biscayne, FL, 33149
SALE
$19,500,000
Est. Mortgage: $87,684/mo Get pre-qualified
37 of 47 for Sale
5Beds
5 Baths
3,620 ft2 (336 m2)
Lot Size 15,000 ft2 (1,394 m2)
Listed on: Oct 16, 2025
Days on Market: 59
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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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A11896953 Condo # for Sale in Key Biscayne, Key Biscayne
  • Listed on:

    Oct 16, 2025
  • Days on Market:

    59
  • Taxes:

    $81,859 per year
  • Tax Year:

    2024
  • Year Built:

    1968
  • Occupancy:

    n/a
  • Parking:

    • Garage Spaces

      2
    • Open Parking

      Yes
    • Covered Spaces

      2
    • Parking Features

      Circular Driveway, Covered, Driveway
  • Interior:

    • Flooring

      Tile, Wood
    • Appliances

      Dishwasher, Dryer, Microwave, Washer
    • Cooling

      Central Air
    • Heating

      Central
    • Interior Features

      First Floor Entry, Built-in Features, Other
  • Exterior:

    • View

      Bay, Ocean
    • Architectural Style

      Detached, Two Story
    • Construction Materials

      Concrete Block Construction, CBS Construction
    • Direction Faces

      East
    • Waterfront Features

      Ocean Access, Ocean Front
    • Frontage Type

      Bay
    • Pool Features

      In Ground
    • Roof

      Flat Tile
  • Community:

    • Subdivision Name

      MASHTA ISLAND
    • Typeof Association

      None
    • Community Features

      None
    • 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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