Homes over $1M in Key Biscayne, FL

110 for sale · 153 homes listed · Updated September 25, 2026 · Page 1 of 4

• 960 mariner drive, Key Biscayne 33149 $19,500,000 · 6 bd · 10 ba · 7,742 sqft
• 360 ocean drive 205s, Key Biscayne 33149 $3,650,000 · 2 bd · 4 ba · 1,830 sqft
• 420 island drive, Key Biscayne 33149 $12,485,000 · 6 bd · 8 ba · 6,405 sqft
• 785 crandon blvd 705 805, Key Biscayne 33149 $5,450,000 · 4 bd · 5 ba · 4,200 sqft
• 31 island drive, Key Biscayne 33149 $9,800,000 · 6 bd · 7 ba · 5,826 sqft
• 545 sabal palm, Key Biscayne 33149 $7,950,000 · 5 bd · 5 ba · 4,166 sqft
• 691 ridgewood road, Key Biscayne 33149 $3,800,000 · 4 bd · 4 ba · 3,403 sqft
• 200 harbor drive, Key Biscayne 33149 $25,900,000 · 4 bd · 4 ba · 2,566 sqft
• 360 ocean drive 304s, Key Biscayne 33149 $4,800,000 · 2 bd · 4 ba · 1,823 sqft
• 251 crandon boulevard 227, Key Biscayne 33149 $1,900,000 · 3 bd · 2 ba · 1,546 sqft
• 177 ocean lane drive 208, Key Biscayne 33149 $1,125,000 · 2 bd · 2 ba · 1,260 sqft
• 110 hampton lane, Key Biscayne 33149 $6,900,000 · 6 bd · 7 ba · 3,550 sqft
• 350 east ocean drive 301n, Key Biscayne 33149 $8,950,000 · 4 bd · 7 ba · 3,798 sqft
• 605 ocean drive 2l, Key Biscayne 33149 $2,490,000 · 3 bd · 3 ba · 1,772 sqft
• 881 ocean drive 20a, Key Biscayne 33149 $3,600,000 · 3 bd · 3 ba · 3,120 sqft
• 350 ocean drive 205n, Key Biscayne 33149 $3,500,000 · 2 bd · 3 ba · 1,830 sqft
• 350 ocean drive 701n, Key Biscayne 33149 $11,495,000 · 4 bd · 6 ba · 3,787 sqft
• 445 grand bay drive ph-1a, Key Biscayne 33149 $18,900,000 · 5 bd · 6 ba · 8,435 sqft
• 799 crandon boulevard 605, Key Biscayne 33149 $3,750,000 · 3 bd · 4 ba · 2,510 sqft
• 600 grapetree dr 11bn, Key Biscayne 33149 $3,599,000 · 3 bd · 3 ba · 3,711 sqft
• 741 harbor drive, Key Biscayne 33149 $7,590,000 · 6 bd · 7 ba · 4,043 sqft
• 199 ocean lane drive 1009, Key Biscayne 33149 $1,299,000 · 2 bd · 2 ba · 1,260 sqft
• 24 grand bay estates circle, Key Biscayne 33149 $4,899,000 · 5 bd · 6 ba · 4,220 sqft
• 430 grand bay drive 801, Key Biscayne 33149 $6,900,000 · 2 bd · 4 ba · 3,950 sqft
• 561 warren lane, Key Biscayne 33149 $5,995,000 · 5 bd · 6 ba · 3,762 sqft
• 430 grand bay drive 307, Key Biscayne 33149 $3,400,000 · 3 bd · 4 ba · 2,840 sqft
• 1121 crandon boulevard e1203, Key Biscayne 33149 $1,350,000 · 2 bd · 2 ba · 1,409 sqft
• 640 south mashta drive, Key Biscayne 33149 $16,800,000 · 4 bd · 4 ba · 3,620 sqft
• 151 crandon boulevard 345, Key Biscayne 33149 $2,450,000 · 3 bd · 3 ba · 2,330 sqft
• 201 crandon boulevard 163, Key Biscayne 33149 $2,865,000 · 3 bd · 4 ba · 2,604 sqft
• 524 warren lane, Key Biscayne 33149 $3,730,000 · 5 bd · 4 ba · 2,700 sqft
• 685 harbor lane, Key Biscayne 33149 $6,950,000 · 5 bd · 6 ba · 5,421 sqft
• 791 crandon boulevard 302, Key Biscayne 33149 $3,340,000 · 3 bd · 3 ba · 2,510 sqft
• 719 crandon boulevard 310, Key Biscayne 33149 $1,950,000 · 2 bd · 2 ba · 1,700 sqft
• 690 warren lane, Key Biscayne 33149 $5,478,000 · 4 bd · 4 ba · 3,549 sqft
• 791 crandon boulevard 404, Key Biscayne 33149 $3,549,000 · 3 bd · 3 ba · 2,510 sqft
• 485 west matheson drive, Key Biscayne 33149 $237,000,000 · 5 bd · 9 ba · 11,528 sqft
• 255 ridgewood road, Key Biscayne 33149 $3,550,000 · 4 bd · 3 ba · 2,177 sqft
• 200 ocean lane drive 407, Key Biscayne 33149 $1,220,000 · 2 bd · 2 ba · 1,580 sqft
• 232 sea view drive 108, Key Biscayne 33149 $1,480,000 · 2 bd · 3 ba · 1,340 sqft
• 737 crandon boulevard 402, Key Biscayne 33149 $2,800,000 · 3 bd · 3 ba · 2,470 sqft
• 50 ocean lane drive 404, Key Biscayne 33149 $1,095,000 · 3 bd · 2 ba · 1,360 sqft
• 209 east enid drive 36, Key Biscayne 33149 $2,600,000 · 4 bd · 4 ba · 2,442 sqft
• 204 sunrise drive 204b, Key Biscayne 33149 $1,690,000 · 3 bd · 3 ba · 1,550 sqft
• 238 buttonwood drive, Key Biscayne 33149 $8,500,000 · 6 bd · 7 ba · 4,190 sqft
• 199 ocean lane drive 413, Key Biscayne 33149 $1,099,000 · 2 bd · 2 ba · 1,260 sqft
• 1111 crandon boulevard b506, Key Biscayne 33149 $1,350,000 · 2 bd · 2 ba · 1,409 sqft
• 571 glenridge road, Key Biscayne 33149 $7,490,000 · 5 bd · 7 ba · 3,768 sqft
• 350 ocean dr lph2n, Key Biscayne 33149 $17,900,000 · 5 bd · 6 ba · 4,764 sqft
• 799 crandon boulevard ph-8, Key Biscayne 33149 $18,500,000 · 5 bd · 6 ba · 4,566 sqft