669 S Mashta DriveKey Biscayne, FL 33149Sale Price: $3,465,000

  • Sale Price: $3,465,000
  • 435 Days Since Sale
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Federal 30-year interest rate: 6.71% last updated on Sep 3, 2026
* All Figures are estimates. Check with your bank or proposed mortgage company for actual interest rates.
This product uses the FRED® API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.
  • $3,465,000Sale Price
  • 3Bedrooms
  • 3Full Bath
  • 1Half Baths
  • 3,382Square Feet
  • 10,000Lot Size Square Feet

Listing Tools

A rare chance to own an exceptional Florida style home on prestigious Mashta Island. This residence captures the Florida lifestyle with vaulted ceilings and an open floor plan blending indoor and outdoor spaces.Sliding pocket doors invite natural light and open to a large covered terrace and mosaic pool, ideal for entertaining or relaxing.The home includes a spacious eat-in kitchen, cozy library, and a coral-stone fireplace. Renovated bathrooms and new wood Walnut floors enhance its modern appeal. A separate private living area with a bedroom and bathroom offers flexibility for guests or family. Located on a quiet street. Oversized 10,000.SqFt lot, new impact windows, a two-year-old roof, custom built-ins that add style and function.Tasteful updates and classic Florida charm.

Property Details of 669 S Mashta Drive

Property Details

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Mortgage Calculator


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Est. Mortgage:
$/month over payments
Federal 30-year interest rate: 6.71% last updated on Sep 3, 2026. * The above figures are estimates provided by Union Street Media using the FRED® API, and are not endorsed or certified by the Federal Reserve Bank of St. Louis. Check with your lender for actual interest rates.
Listed by Maureen Jauregui of Coldwell Banker Realty

Listing Sold by One Sotheby's International Realty

The multiple listing information is provided by Miami Association of REALTORS® from a copyrighted compilation of listings. The compilation of listings and each individual listing are © 2026 Miami Association of REALTORS®. All Rights Reserved. The information 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. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Data last updated on September 4, 2026

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