View 485 W Matheson Dr Key Biscayne, FL MLS# A12005335
  • Virtual Tour
1 of 82
$237,000,000
5

Beds

7.2

Baths

11,528

Sq.Ft.

485 W Matheson Dr

Key Biscayne, FL

Courtesy of COLDWELL BANKER REALTY
View 241 Cape Florida Dr Key Biscayne, FL MLS# A11608943
  • Virtual Tour
1 of 100
$29,900,000
8

Beds

8.1

Baths

9,159

Sq.Ft.

241 Cape Florida Dr

Key Biscayne, FL

Courtesy of CERVERA REAL ESTATE INC.
View 260 Cape Florida Dr Key Biscayne, FL MLS# A11883349
$29,500,000
9

Beds

8.2

Baths

10,964

Sq.Ft.

260 Cape Florida Dr

Key Biscayne, FL

Courtesy of ONE SOTHEBY'S INTERNATIONAL REALTY
The time to sell is now! THE TIME TO SELL IS NOW!
View 260 Cape Florida Drive Key Biscayne, FL MLS# A11883349
  • Recently Listed with Virtual Tour
1 of 24
$29,500,000
9

Beds

8.2

Baths

10,964

Sq.Ft.

260 Cape Florida Drive

Key Biscayne, FL

View 430 Grand Bay Dr PH-1AN Key Biscayne, FL MLS# A11915787
$26,000,000
4

Beds

4.2

Baths

9,600

Sq.Ft.

430 Grand Bay Dr PH-1AN

Key Biscayne, FL

Courtesy of THE CORCORAN GROUP
View 5 Harbor Pt Key Biscayne, FL MLS# A11921513
  • Virtual Tour
1 of 90
$26,000,000
3

Beds

4.2

Baths

10,926

Sq.Ft.

5 Harbor Pt

Key Biscayne, FL

Courtesy of BHHS EWM REALTY
View 200 Harbor Dr Key Biscayne, FL MLS# A11869417
  • Virtual Tour
1 of 24
$25,900,000
4

Beds

4.0

Baths

2,566

Sq.Ft.

200 Harbor Dr

Key Biscayne, FL

Courtesy of COLDWELL BANKER REALTY
View 230 Harbor Drive Key Biscayne, FL MLS# A11657338
  • Virtual Tour
1 of 56
$21,800,000
7

Beds

7.1

Baths

6,240

Sq.Ft.

230 Harbor Drive

Key Biscayne, FL

Courtesy of ONE SOTHEBY'S INTERNATIONAL REALTY
View 550 Harbor Dr Key Biscayne, FL MLS# A11912105
  • Virtual Tour
1 of 66
OPEN HOUSE: Sunday 6/14 10:30 AM - 12:30 PM
$20,450,000
7

Beds

7.1

Baths

6,497

Sq.Ft.

550 Harbor Dr

Key Biscayne, FL

Courtesy of THREE BRIDGES REALTY, LLC
View 550 Harbor Drive Key Biscayne, FL MLS# A11912105
  • Recently Listed with Virtual Tour
1 of 66
OPEN HOUSE: Sunday 6/14 10:30 AM - 12:30 PM
$20,450,000
7

Beds

7.1

Baths

6,497

Sq.Ft.

550 Harbor Drive

Key Biscayne, FL

View 120 Knollwood Dr Key Biscayne, FL MLS# A12009875
  • Virtual Tour
1 of 45
$19,950,000
6

Beds

6.1

Baths

6,208

Sq.Ft.

120 Knollwood Dr

Key Biscayne, FL

Courtesy of CERVERA REAL ESTATE INC.
View 100 Cape Florida Dr Key Biscayne, FL MLS# A11934196
$19,800,000
4

Beds

5.4

Baths

8,240

Sq.Ft.

100 Cape Florida Dr

Key Biscayne, FL

Courtesy of ONE SOTHEBY'S INTERNATIONAL REALTY
View 960 Mariner Dr Key Biscayne, FL MLS# A11731927
  • New Construction with Virtual Tour
1 of 79
$19,500,000
6

Beds

8.2

Baths

7,742

Sq.Ft.

960 Mariner Dr

Key Biscayne, FL

Courtesy of THE CORCORAN GROUP
View 960 Mariner Drive Key Biscayne, FL MLS# A11731927
  • Recently Listed with Virtual Tour
1 of 79
$19,500,000
6

Beds

8.2

Baths

7,742

Sq.Ft.

960 Mariner Drive

Key Biscayne, FL

View 445 Grand Bay Drive PH-1A Key Biscayne, FL MLS# A11954185
$18,900,000
5

Beds

5.1

Baths

8,435

Sq.Ft.

445 Grand Bay Drive PH-1A

Key Biscayne, FL

Courtesy of ONE SOTHEBY'S INTERNATIONAL REALTY
View 350 Ocean Dr LPH2N Key Biscayne, FL MLS# A12027002
  • Recently Listed with Virtual Tour
1 of 93
$18,500,000
5

Beds

5.1

Baths

4,764

Sq.Ft.

350 Ocean Dr LPH2N

Key Biscayne, FL

Courtesy of BHHS EWM REALTY
View 799 Crandon Blvd PH-8 Key Biscayne, FL MLS# A12027629
  • Recently Listed with Virtual Tour
1 of 47
$18,500,000
5

Beds

5.1

Baths

4,566

Sq.Ft.

799 Crandon Blvd PH-8

Key Biscayne, FL

Courtesy of COLDWELL BANKER REALTY
View 350 Ocean Drive LPH2N Key Biscayne, FL MLS# A12027002
  • Recently Listed with Virtual Tour
1 of 372
$18,500,000
5

Beds

5.1

Baths

4,764

Sq.Ft.

350 Ocean Drive LPH2N

Key Biscayne, FL

View 640 S Mashta Dr Key Biscayne, FL MLS# A11990382
  • Virtual Tour
1 of 38
$16,800,000
4

Beds

4.0

Baths

3,620

Sq.Ft.

640 S Mashta Dr

Key Biscayne, FL

Courtesy of DLS INTERNATIONAL REALTY
View 591 N Mashta Dr Key Biscayne, FL MLS# A11924175
  • Virtual Tour
1 of 40
$15,500,000
4

Beds

4.1

Baths

4,290

Sq.Ft.

591 N Mashta Dr

Key Biscayne, FL

Courtesy of EXP REALTY LLC

About Key Biscayne

Listings in Key Biscayne, FL

281

Estimated median home price

$1,900,000
Key Biscayne FL Homes for Sale & Properties

Weichert Realtors is one of the nation's leading providers of Key Biscayne, Florida real estate for sale and home ownership services. Contact Weichert today to buy or sell real estate in Key Biscayne, FL.

Homes for Sale by Price in Key Biscayne, FL

Price Count
$0 - 100K 34
$100K - 200K 1
$200K - 300K 0
$300K - 400K 1
$400K - 500K 5
$500K - 600K 5
$600K - 700K 4
$700K - 800K 11
$800K - 900K 7
$900K - 1M 3
$1M - Max 210

Homes for Sale by Type in Key Biscayne, FL

Property Type Count
Single Family 100
Townhouse 10
Condo 164
Commercial 2
Rental 244
Lots and Land 0
Condo/Town/CoOp 0
CoOp 5
Multi Family 0
Mobile Home 0
Farms 0

(Data as of 6/13/2026)

Information deemed reliable but not guaranteed.

The data relating to the real estate for sale on this web site comes in part from the Realtor Association of Greater Miami and the Beaches.

The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective consumers may be interested in purchasing