Key Biscayne houses for sale
As of , 36 houses for sale are listed in Key Biscayne. The median asking price is about $7,450,000, or $1,909 per sq ft.
Live MLS data from MIAMI MLS and BeachesMLS. Updated .
- Houses for sale
- 36
- Median asking price
- $7,450,000
- Median per sq ft
- $1,909
- On the water
- 27%
- $6,950,0005 bd · 5 full + 1 half ba · 5,421 sq ft685 Harbor LnAvanti Way Realty LLC
- $3,730,0005 bd · 4 ba · 2,700 sq ft524 Warren LnSerhant
- $16,800,0004 bd · 4 ba · 3,620 sq ft640 S Mashta DrDLS International Realty
- $4,899,0005 bd · 5 full + 1 half ba · 4,220 sq ft24 Grand Bay Estates CirEngel & Voelkers Vero Beach
- $7,390,0006 bd · 4 full + 3 half ba · 4,043 sq ft741 Harbor DrColdwell Banker Realty
- $19,800,0004 bd · 5 full + 4 half ba · 8,240 sq ft100 Cape Florida DrOne Sotheby's International Realty
- $19,450,0007 bd · 7 full + 1 half ba · 6,497 sq ft550 Harbor DrThree Bridges Realty, LLC
- $6,900,0006 bd · 6 full + 1 half ba · 3,550 sq ft110 Hampton LnFortune Christie's Intl R.E
- $3,800,0004 bd · 3 full + 1 half ba · 3,403 sq ft691 Ridgewood RdBHHS EWM Realty
- $7,950,0005 bd · 4 full + 1 half ba · 4,166 sq ft545 Sabal PalmDLS International Realty
- $12,485,0006 bd · 6 full + 2 half ba · 6,405 sq ft420 Island DrBHHS EWM Realty
- $9,800,0006 bd · 6 full + 1 half ba · 5,826 sq ft31 Island DrGimeza A Real Estate Corp
Listings from MIAMI MLS and BeachesMLS. The listing office is shown on every listing page. Information is deemed reliable but not guaranteed.
Houses for sale compared with all homes in Key Biscayne
| Houses for sale | All homes for sale | |
|---|---|---|
| Listings for sale | 36 | 149 |
| Share of homes for sale | 24% | 100% |
| Median asking price | $7,450,000 | $2,265,000 |
| Median per sq ft | $1,909 | $1,141 |
Questions about houses for sale
How much are houses for sale in Key Biscayne?
As of October 22, 2026, the median asking price is $7,450,000, or $1,909 per sq ft, across 36 listings for sale.
How many houses for sale in Key Biscayne are on the water?
As of October 22, 2026, 27% of the listings for sale in Key Biscayne say they are on the water.
Are pets allowed in Key Biscayne?
As of October 22, 2026, 89% of the 19 listings that state a pet policy say pets are allowed. Each building or community sets its own rules.
How long do houses for sale stay on the market in Key Biscayne?
As of October 22, 2026, the median listing for sale has been on the market for 147 days.
What do houses for sale in Key Biscayne cost by number of bedrooms?
As of October 22, 2026, asking prices are: 4 bedrooms: from $3,550,000 to $19,800,000; 5 bedrooms: most from $4,899,000 to $9,200,000; 6 bedrooms: most from $5,199,000 to $16,500,000.
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