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
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
The time to sell is now! THE TIME TO SELL IS NOW!
View 5 Harbor Pt Key Biscayne, FL MLS# A11921513
  • Virtual Tour
1 of 90
OPEN HOUSE: Wednesday 1/21 12:30 PM - 2:30 PM
$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
$23,500,000
7

Beds

7.1

Baths

6,240

Sq.Ft.

230 Harbor Drive

Key Biscayne, FL

Courtesy of ONE SOTHEBY'S INTERNATIONAL REALTY
View 631 N Mashta Drive Key Biscayne, FL MLS# RX11060323
$23,500,000
4

Beds

4.1

Baths

2,255

Sq.Ft.

631 N Mashta Drive

Key Biscayne, FL

BeachesMLS
View 180 Cape Florida Dr Key Biscayne, FL MLS# A11762225
$23,500,000
6

Beds

6.2

Baths

8,031

Sq.Ft.

180 Cape Florida Dr

Key Biscayne, FL

Courtesy of LUXE LIVING REALTY
View 550 Harbor Dr Key Biscayne, FL MLS# A11912105
  • Virtual Tour
1 of 66
$21,950,000
7

Beds

7.1

Baths

6,497

Sq.Ft.

550 Harbor Dr

Key Biscayne, FL

Courtesy of THREE BRIDGES REALTY, LLC
View 481 S Mashta Drive Key Biscayne, FL MLS# A11779615
$20,900,000
5

Beds

6.1

Baths

5,940

Sq.Ft.

481 S Mashta Drive

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
$20,300,000
6

Beds

8.2

Baths

7,192

Sq.Ft.

960 Mariner Dr

Key Biscayne, FL

Courtesy of THE CORCORAN GROUP
View 100 Cape Florida Dr Key Biscayne, FL MLS# A11934196
  • Recently Listed with Virtual Tour
1 of 68
$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 640 S Mashta Dr Key Biscayne, FL MLS# A11896953
  • Virtual Tour
1 of 46
$19,500,000
5

Beds

5.0

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
$16,950,000
4

Beds

4.1

Baths

4,290

Sq.Ft.

591 N Mashta Dr

Key Biscayne, FL

Courtesy of EXP REALTY LLC
View 161 Cape Florida Dr Key Biscayne, FL MLS# A11621943
$15,390,000
4

Beds

4.1

Baths

6,661

Sq.Ft.

161 Cape Florida Dr

Key Biscayne, FL

Courtesy of ONE SOTHEBY'S INTERNATIONAL REALTY
View 420 Island Dr Key Biscayne, FL MLS# A11812864
  • Virtual Tour
1 of 84
$14,000,000
6

Beds

6.2

Baths

6,405

Sq.Ft.

420 Island Dr

Key Biscayne, FL

Courtesy of BHHS EWM REALTY
View 121 Knollwood Drive Key Biscayne, FL MLS# A11936017
  • Recently Listed
1 of 46
$13,850,000
5

Beds

4.1

Baths

4,924

Sq.Ft.

121 Knollwood Drive

Key Biscayne, FL

Courtesy of ONE SOTHEBY'S INTERNATIONAL REALTY
View 365 Gulf Rd Key Biscayne, FL MLS# A11862357
  • Virtual Tour
1 of 29
$11,990,000
6

Beds

6.1

Baths

5,960

Sq.Ft.

365 Gulf Rd

Key Biscayne, FL

Courtesy of ONE SOTHEBY'S INTERNATIONAL REALTY
View 111 Reef Ln Key Biscayne, FL MLS# A11928646
  • Recently Listed with Virtual Tour
1 of 26
$11,500,000
7

Beds

5.1

Baths

5,008

Sq.Ft.

111 Reef Ln

Key Biscayne, FL

Courtesy of COMPASS FLORIDA, LLC
View 610 Harbor Cir Key Biscayne, FL MLS# A11766300
  • Virtual Tour
1 of 71
$11,300,000
6

Beds

6.2

Baths

5,216

Sq.Ft.

610 Harbor Cir

Key Biscayne, FL

Courtesy of AVANTI WAY REALTY LLC

About Key Biscayne

Listings in Key Biscayne, FL

191

Estimated median home price

$2,000,000
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 7
$100K - 200K 0
$200K - 300K 0
$300K - 400K 1
$400K - 500K 4
$500K - 600K 8
$600K - 700K 4
$700K - 800K 7
$800K - 900K 4
$900K - 1M 8
$1M - Max 148

Homes for Sale by Type in Key Biscayne, FL

Property Type Count
Single Family 56
Townhouse 5
Condo 125
Commercial 0
Rental 206
Lots and Land 0
Condo/Town/CoOp 0
CoOp 5
Multi Family 0
Mobile Home 0
Farms 0

(Data as of 1/16/2026)

Information deemed reliable but not guaranteed.

Copyright 2026 BeachesMLS, Inc. All rights reserved.

All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed.

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

Data is updated as of 1/21/2026.

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