Key Biscayne Real Estate
631 N Mashta Drive
$18,500,000
631 N Mashta Drive
$18,500,000
24 Grand Bay Estates Circle
$4899000
Key Biscayne Listings Summary
Key Biscayne - Town vs. County Stats
Avg Price in Key Biscayne: $5,742,700 / County Avg $929,900
Avg Taxes in Key Biscayne: $41,800 / County Avg $15,900
Avg Sq. Ft. in Key Biscayne: 2,688 / County Avg 1,670
Avg Price per/sqft in Key Biscayne:$2136 / County Avg $557
Avg Year Built in Key Biscayne: 1984 / County Avg 1983
Avg Days on Website in Key Biscayne: 1855 / County Avg 1078
Copyright © MFRMLS.com All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided 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 on this site was last updated Last updated on November 6, 2026 10:46 PM UTC The listing information on this page last changed on Last updated on November 6, 2026 10:46 PM UTCd. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of MFR MLS.
All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided 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.
Updated on November 6, 2026 10:46 PM UTC
All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data relating