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    Mashta Island 669 S Mashta Dr Sold, A12033340

    669 S Mashta Dr, Key Biscayne, FL 33149

    $5,200,000 sold
    4 beds
    3.5 baths
    3,382 sf
    /sf
    $1,538.00
    Monthly cost
    -/mo
    Maintenance per month$0.000000/
    Taxes per year$22,013
    WaterfrontNo
    TypeSingle Family
    MLSA12033340

    Listing Description

    Located on the exclusive and highly sought-after Mashta Island, this exceptional property offers a rare opportunity to build your dream home or enjoy the existing beautifully refurbished residence. The home features new bathrooms, updated flooring, and...

    Listing information courtesy of Coldwell Banker Realty. Source: A-Miami Association of REALTORS. Data updated 08/12/2026.

    Facts and Features

    Type
    Single Family
    Year Built
    1960
    Heating
    Heat Strip
    Cooling
    Central Air
    Parking
    Driveway
    Swimming pool
    Yes
    HOA
    $0.000000/
    Days on market
    1
    Status
    Closed

    Features

    Bedrooms

    Beds: 4
    Bedroom Description: At Least 1 Bedroom Ground Level
    Design: Attached,Two Story

    Rooms Description:

    Florida Room

    Heating:

    Heat Strip

    Cooling:

    Central Air

    Equipment Appliances:

    Dishwasher, Disposal, Dryer, Gas Range, Refrigerator, Self Cleaning Oven, Wall Oven, Washer

    Windows Treatment:

    Clear Impact Glass, Partial Accordian Shutters, Partial Impact Glass, Hurricane Shutters, Blinds, Impact Glass

    Flooring

    Floor Description: Vinyl

    Interior features:

    Roman Tub, Split Bedroom, Volume Ceilings, Florida Room

    Exterior features:

    Outdoor Shower

    Lot Description

    Lot: 10,000 sqft
    Lot depth: 0 ft
    Lot frontage: 0 ft

    Building

    Parking

    Parking: Detached garage
    Parking description: Driveway

    Security Information:

    Smoke Detector

    Construction

    Construction Type:

    CBS Construction

    Listing Type:

    Exclusive Right To Sell

    Property Type:

    Residential

    Style:

    Pool Only,House

    Roof Description:

    Tar & Gravel Roof

    Finance

    Taxes:

    $22,013

    HOA

    HOA Fee: $0.000000//mo

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    Mashta Island Overview

    Avg. days on market
    81
    SF range
    2,255-3,620sf
    Price range for Sale
    $16.8m - 18.5m
    Price range for Rent
    $21.5k - 75k
    Median Sale price per sqft
    $6.4k
    Median Rent price per sqft
    $8.7
    Avg. Sale price
    $17.7m
    Avg. Rent price
    $42.7k
    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
    Mashta Island - 640 S Mashta Dr, Key Biscayne, FL 33149
    $16,800,000
    640 S Mashta Dr, Key Biscayne FL 33149
    4 bd 4 ba 3,620 sqft
    built in
    1968
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