Key Biscayne Real Estate
240 Galen Dr 302
$3,100
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: $4,713,900 / County Avg $1,308,700
Avg Taxes in Key Biscayne: $34,600 / County Avg $18,800
Avg Sq. Ft. in Key Biscayne: 2,384 / County Avg 2,454
Avg Price per/sqft in Key Biscayne:$1978 / County Avg $533
Avg Year Built in Key Biscayne: 1981 / County Avg 1988
Avg Days on Website in Key Biscayne: 153 / County Avg 160
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Data Last Updated: September 17, 2026 7:11 AM UTC