Key Biscayne Real Estate
Most Popular
240 Galen Dr 302
$3,100
Most Expensive
485 W Matheson Dr
$237,000,000
Least Expensive
100 Sunrise Dr 25
$1400
Key Biscayne Listings Summary
Key Biscayne - Town vs. County Stats
Avg Price in Key Biscayne: $4,860,900 / County Avg $1,319,400
368%
Avg Taxes in Key Biscayne: $34,800 / County Avg $18,900
185%
Avg Sq. Ft. in Key Biscayne: 2,380 / County Avg 2,398
99%
Avg Price per/sqft in Key Biscayne:$2043 / County Avg $550
371%
Avg Year Built in Key Biscayne: 1981 / County Avg 1988
100%
Avg Days on Website in Key Biscayne: 152 / County Avg 160
95%
Key Biscayne Real Estate Market Health
New Listings
Reductions
Foreclosures
Short Sales
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Data Last Updated: September 23, 2026 4:16 PM UTC
