Key Biscayne, FL - single-family homes for sale

45 of 45 results displayed

$8,250,000Active
6 beds 9 baths3,842 sq. ft.
165 Hampton Ln, Key Biscayne, FL 33149
MLS# A12040744Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY
$5,200,000Active
5 beds 5 baths3,535 sq. ft.
797 Glenridge Rd, Key Biscayne, FL 33149
MLS# A12037837Listed by: SWANN REALTY PARTNERS, LLC.
Open Wed, 12 to 2pm
$5,199,000Active
6 beds 5 baths3,356 sq. ft.
650 Curtiswood Dr, Key Biscayne, FL 33149
MLS# A12035700Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY
$7,450,000Active
7 beds 9 baths4,565 sq. ft.
425 Harbor Dr, Key Biscayne, FL 33149
MLS# A12034564Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY
$7,590,000Active
6 beds 7 baths4,043 sq. ft.
741 Harbor Drive, Key Biscayne, FL 33149
MLS# A11976789Listed by: COLDWELL BANKER REALTY
$3,150,000Active
4 beds 2 baths2,175 sq. ft.
310 Harbor Court, Key Biscayne, FL 33149
MLS# A11959280Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY
$6,750,000Active
6 beds 6 baths3,206 sq. ft.
Address Withheld By Seller, Key Biscayne, FL 33149
MLS# A11918795Listed by: FLORIDA REALTY OF MIAMI CORP
$15,500,000Active
4 beds 5 baths4,290 sq. ft.
591 N Mashta Drive, Key Biscayne, FL 33149
MLS# A11924175Listed by: EXP REALTY LLC
$29,900,000Active
8 beds 9 baths9,159 sq. ft.
241 Cape Florida Drive, Key Biscayne, FL 33149
MLS# A11608943Listed by: CERVERA REAL ESTATE INC.
$14,590,000Active
4 beds 5 baths6,661 sq. ft.
161 Cape Florida Drive, Key Biscayne, FL 33149
MLS# A11621943Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY
$19,500,000Active
6 beds 10 baths7,742 sq. ft.
960 Mariner Drive, Key Biscayne, FL 33149
MLS# A11731927Listed by: THE CORCORAN GROUP
$12,485,000Active
6 beds 8 baths6,405 sq. ft.
420 Island Drive, Key Biscayne, FL 33149
MLS# A11812864Listed by: BHHS EWM REALTY
$5,799,000Active
4 beds 4 baths3,382 sq. ft.
669 S Mashta Dr, Key Biscayne, FL 33149
MLS# A12033340Listed by: COLDWELL BANKER REALTY
$9,200,000Active
5 beds 6 baths4,416 sq. ft.
625 Curtiswood Dr, Key Biscayne, FL 33149
MLS# A12021022Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY
$7,490,000Active
5 beds 7 baths3,768 sq. ft.
571 Glenridge Rd, Key Biscayne, FL 33149
MLS# A12025834Listed by: LUXE LIVING REALTY
$8,500,000Active
6 beds 7 baths4,190 sq. ft.
238 Buttonwood Dr, Key Biscayne, FL 33149
MLS# A12021891Listed by: DOUGLAS ELLIMAN
$3,200,000Active
4 beds 3 baths2,068 sq. ft.
301 Hampton Ln, Key Biscayne, FL 33149
MLS# A12015581Listed by: COLDWELL BANKER REALTY
$3,550,000Active
4 beds 3 baths2,177 sq. ft.
255 Ridgewood Rd, Key Biscayne, FL 33149
MLS# A12002746Listed by: COMPASS FLORIDA, LLC.
$237,000,000Active
5 beds 9 baths11,528 sq. ft.
485 W Matheson Dr, Key Biscayne, FL 33149
MLS# A12005335Listed by: COLDWELL BANKER REALTY
$5,478,000Active
4 beds 4 baths3,549 sq. ft.
690 Warren Ln, Key Biscayne, FL 33149
MLS# A12010108Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY
$19,950,000Active
6 beds 7 baths6,208 sq. ft.
120 Knollwood Dr, Key Biscayne, FL 33149
MLS# A12009875Listed by: CERVERA REAL ESTATE INC.
$5,995,000Active
5 beds 6 baths3,762 sq. ft.
561 Warren Ln, Key Biscayne, FL 33149
MLS# A11985371Listed by: GREAT PROPERTIES INTERNATIONAL LLC
$9,500,000Pending
5 beds 4 baths3,405 sq. ft.
861 Harbor Dr, Key Biscayne, FL 33149
MLS# A12004666Listed by: DLS INTERNATIONAL REALTY
$6,395,000Active
5 beds 6 baths4,003 sq. ft.
760 Woodcrest Rd, Key Biscayne, FL 33149
MLS# A12003163Listed by: COMPASS FLORIDA, LLC
$6,950,000Active
5 beds 6 baths5,421 sq. ft.
685 Harbor Ln, Key Biscayne, FL 33149
MLS# A11997896Listed by: AVANTI WAY REALTY LLC
$3,730,000Active
5 beds 4 baths2,700 sq. ft.
524 Warren Ln, Key Biscayne, FL 33149
MLS# A11999112Listed by: SERHANT
$16,800,000Active
4 beds 4 baths3,620 sq. ft.
640 S Mashta Dr, Key Biscayne, FL 33149
MLS# A11990382Listed by: DLS INTERNATIONAL REALTY
$5,250,000Pending
5 beds 6 baths3,285 sq. ft.
346 Gulf Road, Key Biscayne, FL 33149
MLS# A11991746Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY
$3,980,000Active
5 beds 4 baths2,821 sq. ft.
269 Cranwood Dr, Key Biscayne, FL 33149
MLS# A11986564Listed by: COLDWELL BANKER REALTY
$5,495,000Active
5 beds 6 baths3,476 sq. ft.
140 Hampton Ln, Key Biscayne, FL 33149
MLS# A11987710Listed by: FORTUNE CHRISTIE'S INTERNATIONAL REAL ESTATE
$4,999,999Active
5 beds 6 baths4,220 sq. ft.
24 Grand Bay Estates Circle, Key Biscayne, FL 33149
MLS# B26004621Listed by: ENGEL & VOELKERS VERO BEACH
$5,200,000Active
5 beds 5 baths3,595 sq. ft.
164 W Mashta Dr, Key Biscayne, FL 33149
MLS# A11953262Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY
$11,500,000Active
7 beds 6 baths5,008 sq. ft.
111 Reef Ln, Key Biscayne, FL 33149
MLS# A11928646Listed by: COMPASS FLORIDA, LLC
$19,800,000Active
4 beds 9 baths8,240 sq. ft.
100 Cape Florida Dr, Key Biscayne, FL 33149
MLS# A11934196Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY
$13,250,000Active
5 beds 5 baths4,924 sq. ft.
121 Knollwood Drive, Key Biscayne, FL 33149
MLS# A11936017Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY
$19,450,000Active
7 beds 8 baths6,497 sq. ft.
550 Harbor Dr, Key Biscayne, FL 33149
MLS# A11912105Listed by: THREE BRIDGES REALTY, LLC
$6,900,000Active
6 beds 7 baths3,550 sq. ft.
110 Hampton Ln, Key Biscayne, FL 33149
MLS# A11909334Listed by: FORTUNE CHRISTIE'S INTL R.E.
$29,500,000Active
9 beds 10 baths10,964 sq. ft.
260 Cape Florida Dr, Key Biscayne, FL 33149
MLS# A11883349Listed by: ONE SOTHEBY'S INTERNATIONAL REALTY
$8,300,000Active
5 beds 5 baths4,166 sq. ft.
545 Sabal Palm, Key Biscayne, FL 33149
MLS# A11855412Listed by: DLS INTERNATIONAL REALTY
$2,875,000Active
3 beds 2 baths1,312 sq. ft.
738 Fernwood Rd, Key Biscayne, FL 33149
MLS# A11838855Listed by: FORTUNE CHRISTIE'S INTERNATIONAL REAL ESTATE
$9,800,000Active
6 beds 7 baths5,826 sq. ft.
31 Island Dr, Key Biscayne, FL 33149
MLS# A11782945Listed by: GIMEZA A REAL ESTATE CORP.
$19,500,000Active
6 beds 10 baths7,742 sq. ft.
960 Mariner Dr, Key Biscayne, FL 33149
MLS# A11731927Listed by: THE CORCORAN GROUP
$3,800,000Active
4 beds 4 baths3,403 sq. ft.
691 Ridgewood Rd, Key Biscayne, FL 33149
MLS# A11856342Listed by: BHHS EWM REALTY
$25,900,000Active
4 beds 4 baths2,566 sq. ft.
200 Harbor Dr, Key Biscayne, FL 33149
MLS# A11869417Listed by: COLDWELL BANKER REALTY
$10,500,000Active
6 beds 8 baths5,216 sq. ft.
610 Harbor Cir, Key Biscayne, FL 33149
MLS# A11986880Listed by: AVANTI WAY REALTY LLC

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Information deemed reliable but not guaranteed. Information is provided, in part, by Greater Miami MLS. This information being provided is for consumer's personal, non-commercial use and may not be used for any other purpose other than to identify prospective properties consumers may be interested in purchasing. SEFMLS Member Broker: David Cates

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©2026 Century 21 Real Estate LLC. All rights reserved. CENTURY 21®, the CENTURY 21 Logo and C21® are service marks owned by Century 21 Real Estate LLC. Century 21 Real Estate LLC fully supports the principles of the Fair Housing Act and the Equal Opportunity Act. Each office is independently owned and operated. Listing information is deemed reliable but not guaranteed accurate.

Terms of use Accessibility DMCA notice Fraud alert Privacy policy Fair housing Do not sell info NY reasonable accommodation Submit agent or broker complaint

Protect your home and budget from life's surprises with an Assurant Home Warranty, backed by a partner that supports you through every step of homeownership. Explore Plans.

©2026 Century 21 Real Estate LLC. All rights reserved. CENTURY 21®, the CENTURY 21 Logo and C21® are service marks owned by Century 21 Real Estate LLC. Century 21 Real Estate LLC fully supports the principles of the Fair Housing Act and the Equal Opportunity Act. Each office is independently owned and operated. Listing information is deemed reliable but not guaranteed accurate.