Key Biscayne Real Estate
1121 Crandon Blvd D301
$9,500
485 W Matheson Dr
$237,000,000
100 Sunrise Dr 25
$1400
Key Biscayne Listings Summary
Key Biscayne - Town vs. County Stats
Avg Price in Key Biscayne: $4,661,900 / County Avg $1,281,900
Avg Taxes in Key Biscayne: $36,100 / County Avg $18,900
Avg Sq. Ft. in Key Biscayne: 2,434 / County Avg 2,592
Avg Price per/sqft in Key Biscayne:$1915 / County Avg $495
Avg Year Built in Key Biscayne: 1981 / County Avg 1988
Avg Days on Website in Key Biscayne: 159 / County Avg 163
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Data Last Updated: September 12, 2026 3:06 AM UTC