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510 S Mashta Dr
Key Biscayne, FL 33149
$19,000,000
Active
58+
$19,000,000
Active
5
Bedrooms
6
Bathrooms
1
Half Baths
5,226 
Size Sq. Ft.
6
DOM
510 S Mashta Dr Key Biscayne, FL 33149
5 Beds, 6 Baths, 1 (Half Baths), Single Family Residence 5,226 Sq.Ft.
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Waterfront. Located on Mashta Island and island within an island in Key Biscayne. The minute you walk into the house the most breathtaking Biscayne Bay views welcomes you. Breathtaking sunsets.Oversized Lot:18,300-sq.ft. 2 story home with excellent floor plan,Large living room area w/double height ceilings, family room adjacent to Kitchen area. Large dining area w/direct water views & access to pool area. 2nd floor: Master suite & 3 additional bedrooms en suite Master suite w/balcony & large walk in closet .1st floor Guest suite.Water views from every room, dining & reception area.Gazebo by the water.Open kitchen. staff area.powder room.oversized pool w/Cabana room &cabana bath.Double access ( service access &main access) Lush garden offers total privacy . Enclosed two car garage.

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Listing Summary
  • Address 510 S Mashta Dr
  • City Key Biscayne
  • County Miami-Dade
  • Zip 33149
  • Price $19,000,000 ($3,636 / SqFt)
  • Status Active
  • Subdivision Mashta Island A Replat Of
  • Pets Allowed Yes
  • MLS® # A11782312
  • Property Type Residential
  • Property Sub TypeSingle Family Residence
  • Status Active
  • Square Feet 5,226
  • Lot Size 18,300 SqFt
  • Year Built 1981
  • Waterfront Yes
  • Maintenance Fees No Info Provided
  • Taxes $172,413
  • Tax Year 2024
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510 S Mashta Dr
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$19,000,000
 
5 Beds | 6 Baths | 5,226 sf ($3,636 / SqFt)
510 S Mashta Dr
Key Biscayne, FL 33149
 
Active
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$18,900,000
-5.50% (-$1,100,000)  
5 Beds | 4 Baths | 3,085 sf ($6,126 / SqFt)
520 S Mashta Dr
Key Biscayne, FL 33149
1 Price Changes / 43 Days Ago  
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The data relating to real estate for sale on this web site comes in part from the participating Associations of the Miami Multiple Listing Service. The MLS data provided for the property above (A11782312) is provided courtesy of (DLS International Realty). The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. Data last updated on 04-23-2025. IDX powered by Realty Net Media
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(+1) 305-776-2174
Michellehalfon@compass.com
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Miami Beach, FL 33139
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Michelle Halfon is a real estate agent affiliated with Compass. Compass Florida, LLC d/b/a Compass is a licensed real estate broker and abides by equal housing opportunity laws. All material presented herein is intended for informational purposes only. Information is compiled from sources deemed reliable but is subject to errors, omissions, changes in price, condition, sale, or withdrawal without notice. No statement is made as to accuracy of any description. All measurements and square footages are approximate. This is not intended to solicit property already listed. Nothing herein shall be construed as legal, accounting or other professional advice outside the realm of real estate brokerage.
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