Request details
Please complete the form below or give us a call
(786) 751-5111

    –8%
    Based on our stats, a listing price in this community can be reduced by up to 8%.
    Let`s help you!
    View all Mashta Island Homes Mashta IslandMashta Island

    Mashta Island 520 S MASHTA DR Sold, A11502495

    520 S MASHTA DR, Key Biscayne, FL 33149

    Mashta Island # - 01 - photo
    14 images
    • Mashta Island # - 01 - photo
      1/14 images
    • Mashta Island # - 02 - photo
      2/14 images
    • Mashta Island # - 03 - photo
      3/14 images
    • Mashta Island # - 04 - photo
      4/14 images
    • Mashta Island # - 05 - photo
      5/14 images
    • Mashta Island # - 06 - photo
      6/14 images
    • Mashta Island # - 07 - photo
      7/14 images
    • Mashta Island # - 08 - photo
      8/14 images
    • Mashta Island # - 09 - photo
      9/14 images
    • Mashta Island # - 10 - photo
      10/14 images
    • Mashta Island # - 11 - photo
      11/14 images
    • Mashta Island # - 12 - photo
      12/14 images
    • Mashta Island # - 13 - photo
      13/14 images
    • Mashta Island # - 14 - photo
      14/14 images
    14 images
    $16,500,000 sold
    4 beds
    4 baths
    3,085 sf
    /sf
    $5,348.00
    Monthly cost
    -/mo
    Maintenance per month$0.000000/
    Taxes per year$163,377
    WaterfrontYes
    TypeSingle Family
    MLSA11502495
    More info Request details

    Listing Description

    CROWN JEWEL OF KEY BISCAYNE! Captivating wide open Bay vistas on rare sought after S. Mashta Drive. Situated among luxurious multi-million dollar mansions, it offers unparalleled privacy and security. Highlight of this property is its expansive 22...

    Listing information courtesy of Fortune Christie's International Real Estate. Source: A-Miami Association of REALTORS. Data updated 08/11/2026.

    Facts and Features

    Type
    Single Family
    Year Built
    1961
    Heating
    Central
    Cooling
    Central Air
    Parking
    Covered
    Swimming pool
    Yes
    HOA
    $0.000000/
    Days on market
    897
    Status
    Closed

    Features

    Bedrooms

    Beds: 4
    Bedroom Description: Entry Level
    Design: Detached,One Story

    Rooms Description:

    Utility Room/Laundry

    Heating:

    Central

    Cooling:

    Central Air

    Equipment Appliances:

    Dishwasher, Disposal, Dryer, Microwave, Electric Range, Refrigerator

    Windows Treatment:

    Sliding

    Flooring

    Floor Description: Ceramic Floor

    Interior features:

    First Floor Entry, Cooking Island, Pantry, Split Bedroom, Walk-In Closet(s), Utility Room/Laundry

    Exterior features:

    Lighting

    Water Access:

    Private Dock

    Lot Description

    Lot: 22,140 sqft
    Lot depth: 0 ft
    Lot frontage: 0 ft

    Building

    Parking

    Parking: Detached garage
    Parking description: Covered, Guest

    Construction

    Construction Type:

    Concrete Block Construction

    Listing Type:

    Exclusive Right To Sell

    Property Type:

    Residential

    Style:

    House

    Roof Description:

    Barrel Roof

    Finance

    Taxes:

    $163,377

    HOA

    HOA Fee: $0.000000//mo

    Estimated monthly cost

    Use this montgage calculator to calculate your monthly montgage payments quickly and easily
    Home price
    Please enter here the amount you expect to pay for a home.
    Enter a value
    Down payment
    Down payment is cash that you pay upfront for your home.
    Enter a value
    Loan program
    Number of years you have to pay.
    years
    Enter a value
    Interest rate
    The percentage of interest that you will pay on your mortgage for a specific term.
    %
    Enter a value
    Property tax
    Enter your property tax here if you know it.
    per year
    Enter a value
    Home insurance
    Most lenders require home insurance. Enter its price here.
    per year
    Enter a value
    PMI
    PMI is Private Mortgage Insurance which is usually required to pay if your Down payment less than 20%.
    per month
    Enter a value
    HOA clues
    /month
    Enter a value

    $

    P&I
    $
    Insurance
    $
    HOA
    $
    Taxes
    $
    PMI
    $

    *A pre-approval letter from a lender is usually needed to put an offer on a home.

    Mashta Island Overview

    1 for sale1 for rent
    Avg. days on market
    15
    SF range
    2,255-2,255sf
    Price range for Sale
    $18.5m
    Price range for Rent
    $31.5k
    Median Sale price per sqft
    $8.2k
    Median Rent price per sqft
    $9.8
    Avg. Sale price
    $18.5m
    Avg. Rent price
    $31.5k
    Read more

    Mashta Island Homes for Sale

    Mashta Island - 631 N Mashta, Key Biscayne, FL 33149
    $18,500,000
    631 N Mashta, Key Biscayne FL 33149
    4 bd 4.5 ba 2,255 sqft
    built in
    1958
    –8% Based on our stats, a listing price in this community can be reduced by up to 8%. Let`s help you!
    Request more information

      Schedule showing

      Best day

      Hour

      min

      CONTACT US

        Complete the form below or give us a call:
        +1 786 751-5111

        2-minute quiz

        See if you pre-qualify for a Miami home loan

        Answer a few quick questions and a local specialist will send your personalized eligibility & options. No impact on your credit score.

        Free · No obligation · Takes under a minute

          What are you looking to do?

          What type of property?

          When are you looking to buy?

          Estimated price range?

          Down payment available?

          Your estimated credit score?

          Are you a first-time home buyer?

          Great news — you may pre-qualify!

          Enter your details and a Miami specialist will send your personalized eligibility & options.




          Share