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Key Biscayne, FL

Single-Family Homes in Key Biscayne

Detached single-family homes in Key Biscayne, Florida. Browse active MLS listings and communities with List & Sell FL.

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Communities
Key Biscayne
City
1%
Listing Fee
Active Listings

143 active listings

4 bedroom home for sale at 475 Woodcrest, Key Biscayne, FL 33149 — $4,500,000
$4,500,000
Active
6d
$4,500,000
475 Woodcrest
Key Biscayne, FL 33149
4 bd3 ba2,689 sqft
Tropical Isle Homes Sub 1
5 bedroom home for sale at 755 Curtiswood, Key Biscayne, FL 33149 — $5,600,000
$5,600,000
Active
15d
$5,600,000
755 Curtiswood
Key Biscayne, FL 33149
5 bd5 ba3,197 sqft
Biscayne Key Estates
6 bedroom home for sale at 131 Cape Florida, Key Biscayne, FL 33149 — $16,500,000
$16,500,000
Active
16d
$16,500,000
131 Cape Florida
Key Biscayne, FL 33149
6 bd6.5 ba7,103 sqft
Cape Florida Sub Sec 3
3 bedroom home for sale at 119 Harbor, Key Biscayne, FL 33149 — $3,300,000
$3,300,000
Active
21d
$3,300,000
119 Harbor
Key Biscayne, FL 33149
3 bd2 ba1,554 sqft
Tropical Isle Homes Sub 4
6 bedroom home for sale at 544 Warren, Key Biscayne, FL 33149 — $8,000,000
$8,000,000
Active
25d
$8,000,000
544 Warren
Key Biscayne, FL 33149
6 bd5.5 ba1,044 sqft
Tropical Isle Homes Sub
5 bedroom home for sale at 501 Bay, Key Biscayne, FL 33149 — $5,990,000
$5,990,000
Active
30d
$5,990,000
501 Bay
Key Biscayne, FL 33149
5 bd4.5 ba4,759 sqft
Tropical Isle Homes Sub 3
4 bedroom home for sale at 571 Mashta, Key Biscayne, FL 33149 — $6,350,000
$6,350,000
Active
30d
$6,350,000
571 Mashta
Key Biscayne, FL 33149
4 bd3 ba2,761 sqft
Mashta Island A Replat Of
5 bedroom home for sale at 335 Enid, Key Biscayne, FL 33149 — $5,785,000
$5,785,000
Active
42d
$5,785,000
335 Enid
Key Biscayne, FL 33149
5 bd6 ba3,495 sqft
Biscayne Key Estates
5 bedroom home for sale at 520 Mashta, Key Biscayne, FL 33149 — $19,900,000
$19,900,000
Active
42d
$19,900,000
520 Mashta
Key Biscayne, FL 33149
5 bd4 ba3,085 sqft
Mashta Island A Replat Of
8 bedroom home for sale at 241 Cape Florida, Key Biscayne, FL 33149 — $27,900,000
$27,900,000
Active
42d
$27,900,000
241 Cape Florida
Key Biscayne, FL 33149
8 bd8.5 ba9,159 sqft
Cape Florida Sub Sec 3
4 bedroom home for sale at 161 Cape Florida, Key Biscayne, FL 33149 — $14,990,000
$14,990,000
Active
51d
$14,990,000
161 Cape Florida
Key Biscayne, FL 33149
4 bd4.5 ba6,661 sqft
Cape Florida Sub Sec 3
4 bedroom home for sale at 631 Mashta, Key Biscayne, FL 33149 — $18,500,000
$18,500,000
Active
71d
$18,500,000
631 Mashta
Key Biscayne, FL 33149
4 bd4.5 ba2,255 sqft
Mashta Island
6 bedroom home for sale at 650 Curtiswood, Key Biscayne, FL 33149 — $5,199,000
$5,199,000
Active
97d
$5,199,000
650 Curtiswood
Key Biscayne, FL 33149
6 bd4.5 ba3,356 sqft
Biscayne Key Estates
5 bedroom home for sale at 797 Glenridge, Key Biscayne, FL 33149 — $5,100,000
$5,100,000
Active
105d
$5,100,000
797 Glenridge
Key Biscayne, FL 33149
5 bd4.5 ba3,535 sqft
Biscayne Key Estates
7 bedroom home for sale at 425 Harbor, Key Biscayne, FL 33149 — $7,450,000
$7,450,000
Active
103d
$7,450,000
425 Harbor
Key Biscayne, FL 33149
7 bd7.5 ba4,565 sqft
Tropical Isle Homes Sub 3
5 bedroom home for sale at 625 Curtiswood, Key Biscayne, FL 33149 — $9,200,000
$9,200,000
Active
114d
$9,200,000
625 Curtiswood
Key Biscayne, FL 33149
5 bd5.5 ba4,416 sqft
Biscayne Key Estates
5 bedroom home for sale at 571 Glenridge, Key Biscayne, FL 33149 — $7,490,000
$7,490,000
Active
118d
$7,490,000
571 Glenridge
Key Biscayne, FL 33149
5 bd5.5 ba3,768 sqft
Tropical Isle Homes Sub
6 bedroom home for sale at 238 Buttonwood, Key Biscayne, FL 33149 — $8,500,000
$8,500,000
Active
125d
$8,500,000
238 Buttonwood
Key Biscayne, FL 33149
6 bd6.5 ba4,190 sqft
Tropical Isle Homes Sub 4
4 bedroom home for sale at 255 Ridgewood, Key Biscayne, FL 33149 — $3,550,000
$3,550,000
Active
35d
$3,550,000
255 Ridgewood
Key Biscayne, FL 33149
4 bd3 ba2,177 sqft
Tropical Isle Homes Sub 4
5 bedroom home for sale at 485 Matheson, Key Biscayne, FL 33149 — $237,000,000
$237,000,000
Active
142d
$237,000,000
485 Matheson
Key Biscayne, FL 33149
5 bd7.5 ba11,528 sqft
Tropical Isle Homes Resub

Information is provided exclusively 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 deemed reliable but not guaranteed. © 2026 Beaches MLS, Inc.

About Single-Family Homes in Key Biscayne

Single-Family Homes in Key Biscayne, FL

Looking for single-family homes in Key Biscayne? Here is what to know about this part of the County market. Single-family homes in Key Biscayne give buyers a detached house with a yard and more privacy than attached options, across a wide range of neighborhoods in County. They suit families and anyone who wants space, a garage, and room to add a pool.

Decide early whether you want an HOA community or a no-HOA neighborhood, since that shapes both cost and rules. In Florida, pay attention to the roof age and the condition of major systems, because they drive insurance cost and insurability. Lot size, school zoning, and flood zone are the other factors that most affect both livability and resale.

Frequently Asked Questions

Single-Family Homes in Key Biscayne FAQ

Do single-family homes in Key Biscayne have HOA fees?+
Some do and some do not. Newer and gated neighborhoods usually have an HOA, while many established areas do not. We can filter for either based on your preference.
What should I check on a Florida single-family home?+
Roof age, the condition of major systems, and the flood zone matter most, since they affect insurance cost and insurability. A home inspection and insurance quotes early in the process avoid surprises.
Is it better to buy new or resale in Key Biscayne?+
New homes bring modern layouts and warranties, while resale often means mature landscaping, established neighborhoods, and negotiating room. We can compare both for your budget.
How much do single-family homes in County cost?+
Prices span a wide range by neighborhood, size, and age. We can pull current listings and recent sales for the specific Key Biscayne areas you are considering.
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