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Sold for $4,700,000
  • $4,700,000

    551 S Mashta Dr, Key Biscayne, FL 33149

    6beds
    3,245sqft
    Single Family Residence
    Built in 1961
    10,000 Square Feet Lot
    $5,692,700 Zestimate®
    $1,448/sqft
    $28,029 Estimated rent

    Home value

    $5,692,700

    $4.95M - $6.60M

    $28,029/mo

    Zestimate® history
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    What's special

    Resort-style poolTwo primary suitesCovered porchesGenerous storagePrivate balconiesPrivate cabana guest suiteLush landscaping
    Your tropical private retreat on exclusive Mashta Island. This 6 bed / 5 bath, 3,245 SF Mediterranean villa sits on a spacious 10,000 SF lot with lush landscaping, a resort-style pool, and a private cabana guest suite. Interiors with soaring 10-foot ceilings flow seamlessly to the outdoors, perfect for entertaining and relaxed island living. Intentionally designed with two primary suites (first floor and second floor) enhancing comfort and privacy. The chef’s kitchen features a gas stove, cooking island, and SubZero refrigerator. Enjoy private balconies, a circular driveway, an attached 2-car garage with laundry, covered porches, and generous storage. Key Biscayne offers the ultimate family lifestyle with world-class amenities and a true sense of community.

    Zillow last checked:

    Listing updated:

    Listed by:

    Joan Bruggink 786-332-1781,

    One Sotheby's International Realty

    Bought with:

    Joan Bruggink, 3270204

    One Sotheby's International Realty

    Source: MIAMI,MLS#: A11776724MLS LogoOriginating MLS: A-Miami Association of REALTORS

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 6
    • Bathrooms: 5
    • Full bathrooms: 5
    Heating
    • Central
    Cooling
    • Central Air
    Appliances
    • Included: Dishwasher, Disposal, Dryer, Gas Range, Refrigerator, Washer
    • Laundry: In Garage
    Features
    • Kitchen Island, Pantry, Roman Tub, Split Bedroom, Walk-In Closet(s)
    • Flooring: Marble
    • Windows: Complete Impact Glass, Skylight(s), Blinds
    • Has fireplace: Yes
    Interior area
    • Total structure area: 4,692
    • Total interior livable area: 3,245 sqft

    Property

    Parking
    • Total spaces: 2
    • Parking features: Covered, Driveway, Guest, Garage Door Opener
    • Attached garage spaces: 2
    • Has uncovered spaces: Yes
    Features
    • Stories: 2
    • Entry location: First Floor Entry
    • Patio & porch: Patio
    • Exterior features: Lighting, Balcony
    • Has private pool: Yes
    • Pool features: In Ground, Pool Only
    • Fencing: Fenced
    • Has view: Yes
    • View description: Garden
    Lot
    • Size: 10,000 sqft
    • Features: Less Than 1/4 Acre Lot
    Details
    • Additional structures: Guest House
    • Parcel number: 2452050090350
    • Zoning: 2001

    Construction

    Type & style
    • Home type: SingleFamily
    • Architectural style: Mediterranean
    • Property subtype: Single Family Residence
    Materials
    • CBS Construction
    • Roof: Barrel Roof
    Condition
    • Year built: 1961

    Utilities & green energy

    • Sewer: Public Sewer
    • Water: Municipal Water

    Community & neighborhood

    Community
    • Community features: Beach Club Member Available
    Location
    • Region: Key Biscayne
    • Subdivision: Mashta Island A Replat Of

    Other

    Other facts
    • Listing terms: All Cash,Conventional

    Price history

    DateEventPrice
    7/10/2025Sold$4,700,000-14.5%$1,448/sqft
    Source: MIAMI #A11776724 Report a problem
    4/15/2025Listed for sale$5,495,000+89.5%$1,693/sqft
    Source: MIAMI #A11776724 Report a problem
    1/26/2024Listing removed--
    Source: MIAMI #A11518977 Report a problem
    1/22/2024Listed for rent$19,000-2.6%$6/sqft
    Source: MIAMI #A11518977 Report a problem
    1/16/2024Listing removed--
    Source: MIAMI #A11408816 Report a problem
    11/7/2023Price change$19,500-7.1%$6/sqft
    Source: MIAMI #A11408816 Report a problem
    10/12/2023Listed for rent$21,000-4.5%$6/sqft
    Source: MIAMI #A11408816 Report a problem
    10/12/2023Listing removed--
    Source: Zillow Rentals Report a problem
    9/13/2023Price change$22,000-12%$7/sqft
    Source: MIAMI #A11408816 Report a problem
    7/16/2023Listed for rent$25,000+100%$8/sqft
    Source: MIAMI #A11408816 Report a problem
    8/13/2019Sold$2,900,000-1.3%$894/sqft
    Source: Public Record Report a problem
    1/12/2017Sold$2,937,500-8.1%$905/sqft
    Source: Public Record Report a problem
    12/12/2016Pending sale$3,195,000$985/sqft
    Source: London Real Estate Co. #A10035933 Report a problem
    10/3/2014Listing removed$12,500$4/sqft
    Source: London Real Estate Co. #A1941370 Report a problem
    8/19/2014Price change$12,500-10.7%$4/sqft
    Source: London Real Estate Co. #A1941370 Report a problem
    4/27/2014Listed for rent$14,000$4/sqft
    Source: London Real Estate Co. #A1941370 Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2025$54,871 +7.8%$3,170,313 +10%
    2024$50,907 +3.2%$2,882,103 +10%
    2023$49,328 +19.3%$2,620,094 +10%
    2022$41,335 +12.5%$2,381,904 +10%
    2021$36,734 +2.4%$2,165,368 -0.2%
    2020$35,876 +3.7%$2,170,395 +2.1%
    2019$34,591 -2.4%$2,126,609 -5.5%
    2018$35,430 $2,251,136 -0.3%
    2017$35,430 -2.9%$2,257,502 -0.2%
    2016$36,480 +3.3%$2,261,094 +8.3%
    2015$35,311 +174.2%$2,087,668 +167.3%
    2014$12,876 +3.2%$780,926 +1.5%
    2013$12,472 +0%$769,386 +1.7%
    2012$12,472 +2.4%$756,526 +3%
    2011$12,184 -5.4%$734,492 +1.5%
    2010$12,880 +8%$723,638 +2.7%
    2009$11,923 +3.3%$704,614 +7%
    2007$11,543 -6.6%$658,409
    2006$12,363 --
    2005$12,363 +19.8%--
    2004$10,321 +3.6%--
    2003$9,960 +3.1%--
    2002$9,658 --
    2001$9,658 --

    Find assessor info on the county website

    Neighborhood: 33149

    Nearby schools

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    Estimated market value
    $5,692,700
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    Estimated market value
    $5,692,700