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Sold for $1,200,000
  • $1,200,000

    699 N Mashta Dr, Key Biscayne, FL 33149

    4beds
    3,241sqft
    SingleFamily
    Built in 1965
    0.34 Acres Lot
    $1,197,900 Zestimate®
    $370/sqft
    $46,717 Estimated rent

    Home value

    $1,197,900

    $1.05M - $1.37M

    $46,717/mo

    Zestimate® history
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    $46,717/mo

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    Rent Zestimate®

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    $8,286/mo

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    $8,286/mo

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    What's special

    Welcome to an extraordinary opportunity to own a rare waterfront gem on the prestigious Mashta Island in Key Biscayne. This single-family home offers direct access to the crystal-clear waters of Biscayne Bay and comes complete with its own private boat slip—making it a dream come true for boating enthusiasts and water lovers alike. Sitting on an impressive 0.34-acre lot, this property also presents an unparalleled opportunity for those looking to build their dream home. The generous land size, prime waterfront location, and private boat slip provide the perfect foundation to design and create a custom estate tailored to your vision—making this an ideal investment for developers or buyers seeking a truly personalized residence. The home’s location on Mashta Island ensures unmatched exclusivity while being just minutes away from the world-class beaches, dining, and amenities of Key Biscayne. Opportunities like this are incredibly rare—own a piece of paradise where waterfront living and luxury lifestyle meet. Whether you choose to enjoy the existing residence or build the custom home of your dreams, this is your chance to secure one of the few available homes on Mashta Island with direct water access and a private boat slip. Schedule your private showing today!

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 4
    • Bathrooms: 5
    • Full bathrooms: 4
    • 1/2 bathrooms: 1
    Interior area
    • Total interior livable area: 3,241 sqft

    Property

    Parking
    • Total spaces: 5
    • Parking features: Carport
    Features
    • Exterior features: Other
    • Has view: Yes
    • View description: Water
    • Has water view: Yes
    • Water view: Water
    Lot
    • Size: 0.34 Acres
    Details
    • Parcel number: 2452050080050

    Construction

    Type & style
    • Home type: SingleFamily
    Materials
    • special
    • Roof: Other
    Condition
    • Year built: 1965

    Community & neighborhood

    Location
    • Region: Key Biscayne

    Price history

    DateEventPrice
    6/5/2026Sold$1,200,000-94.7%$370/sqft
    Source: Public Record Report a problem
    1/2/2026Listing removed$22,500,000$6,942/sqft
    Source: BHHS EWM Realty #A11815194 Report a problem
    10/15/2025Price change$22,500,000-10%$6,942/sqft
    Source: MIAMI #A11815194 Report a problem
    6/5/2025Listed for sale$25,000,000+25.2%$7,714/sqft
    Source: MIAMI #A11815194 Report a problem
    5/2/2025Listing removed--
    Source: Owner Report a problem
    2/23/2025Listed for sale$19,975,000+66.5%$6,163/sqft
    Source: Owner Report a problem
    11/30/2007Listing removed$12,000,000$3,703/sqft
    Source: Obeo #M1047050 Report a problem
    11/14/2007Listed for sale$12,000,000+841.2%$3,703/sqft
    Source: Obeo #M1047050 Report a problem
    9/16/1997Sold$1,275,000$393/sqft
    Source: Public Record Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2025$112,329 +13.3%$6,509,817 +10%
    2024$99,176 +7.7%$5,918,016 +10%
    2023$92,112 +7.6%$5,380,015 +10%
    2022$85,578 +15.2%$4,890,923 +10%
    2021$74,268 +1.1%$4,446,294 -0.1%
    2020$73,490 -0.3%$4,448,643 -0.1%
    2019$73,712 +3.3%$4,450,993 -0.1%
    2018$71,331 $4,453,343 -18.3%
    2017$71,331 -23.8%$5,449,089 +10%
    2016$93,574 +7.3%$4,953,718 +10%
    2015$87,183 +9.5%$4,503,380 +10%
    2014$79,643 +31.9%$4,093,982 +10%
    2013$60,363 0%$3,721,802 +10%
    2012$60,364 +12.4%$3,383,457 +10%
    2011$53,703 -2.3%$3,075,870 +5%
    2010$54,977 -18.4%$2,928,150 -22.3%
    2009$67,348 -3.7%$3,769,367 -5.7%
    2007$69,930 +32.2%$3,999,093
    2006$52,878 --
    2005$52,878 +43.7%--
    2004$36,788 +12.9%--
    2003$32,576 +16.7%--
    2002$27,926 --
    2001$27,926 --

    Find assessor info on the county website

    Neighborhood: 33149

    Nearby schools

    GreatSchools rating
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    Estimated market value
    $1,197,900
    Get a cash offer in 3 minutes
    Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
    Estimated market value
    $1,197,900