MIAMI PRIMECondos

Single Family Homes for Sale Across Key Biscayne

34 listings

Current single family homes for sale across Key Biscayne, drawn straight from the MLS feed and ordered largest residence first — open any card for photos, unit details and its spot on the map.

485 W Matheson Dr, Key Biscayne, FL 33149
$237,000,000
5 bd · 9 ba · 11,528 sqft
485 W Matheson Dr, Key Biscayne, FL 33149
TROPICAL ISLE HOMES RESUB
241 Cape Florida Dr, Key Biscayne, FL 33149
$27,900,000
8 bd · 9 ba · 9,159 sqft
241 Cape Florida Dr, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 3
100 Cape Florida Dr, Key Biscayne, FL 33149
$19,800,000
4 bd · 9 ba · 8,240 sqft
100 Cape Florida Dr, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 3
131 Cape Florida Dr, Key Biscayne, FL 33149
$16,500,000
6 bd · 7 ba · 7,103 sqft
131 Cape Florida Dr, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 3
161 Cape Florida Drive, Key Biscayne, FL 33149
$14,490,000
4 bd · 6 ba · 6,661 sqft
161 Cape Florida Drive, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 3
550 Harbor Dr, Key Biscayne, FL 33149
$19,450,000New
7 bd · 8 ba · 6,497 sqft
550 Harbor Dr, Key Biscayne, FL 33149
HURRICANE COVE
420 Island Dr, Key Biscayne, FL 33149
$12,485,000
6 bd · 8 ba · 6,405 sqft
420 Island Dr, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 1
120 Knollwood Dr, Key Biscayne, FL 33149
$19,450,000
6 bd · 7 ba · 6,208 sqft
120 Knollwood Dr, Key Biscayne, FL 33149
CAPE FLA SUB SEC 2
31 Island Dr, Key Biscayne, FL 33149
$9,800,000
6 bd · 7 ba · 5,826 sqft
31 Island Dr, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 3
685 Harbor Ln, Key Biscayne, FL 33149
$6,950,000
5 bd · 6 ba · 5,421 sqft
685 Harbor Ln, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
501 Bay Lane, Key Biscayne, FL 33149
$5,990,000
5 bd · 5 ba · 4,759 sqft
501 Bay Lane, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 3
425 Harbor Dr, Key Biscayne, FL 33149
$7,450,000
7 bd · 9 ba · 4,565 sqft
425 Harbor Dr, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 3
360 Harbor Ln, Key Biscayne, FL 33149
$9,950,000New
6 bd · 6 ba · 4,341 sqft
360 Harbor Ln, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
24 Grand Bay Estates Circle, Key Biscayne, FL 33149
$4,899,000
5 bd · 5.5 ba · 4,220 sqft
24 Grand Bay Estates Circle, Key Biscayne, FL 33149
238 Buttonwood Dr, Key Biscayne, FL 33149
$8,500,000
6 bd · 7 ba · 4,190 sqft
238 Buttonwood Dr, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 4
545 SABAL PALM, Key Biscayne, FL 33149
$7,950,000
5 bd · 5 ba · 4,166 sqft
545 SABAL PALM, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 2N
741 Harbor Dr, Key Biscayne, FL 33149
$7,390,000
6 bd · 7 ba · 4,043 sqft
741 Harbor Dr, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
315 Cypress Dr, Key Biscayne, FL 33149
$7,599,000
6 bd · 8 ba · 3,980 sqft
315 Cypress Dr, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 4
571 Glenridge Rd, Key Biscayne, FL 33149
$7,490,000
5 bd · 7 ba · 3,768 sqft
571 Glenridge Rd, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB
640 S Mashta Dr, Key Biscayne, FL 33149
$16,800,000
4 bd · 4 ba · 3,620 sqft
640 S Mashta Dr, Key Biscayne, FL 33149
MASHTA ISLAND
110 Hampton Ln, Key Biscayne, FL 33149
$6,900,000
6 bd · 7 ba · 3,550 sqft
110 Hampton Ln, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 4
690 Warren Ln, Key Biscayne, FL 33149
$5,378,000
4 bd · 4 ba · 3,549 sqft
690 Warren Ln, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
797 Glenridge Rd, Key Biscayne, FL 33149
$5,100,000
5 bd · 5 ba · 3,535 sqft
797 Glenridge Rd, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
335 W Enid Dr, Key Biscayne, FL 33149
$6,897,000
5 bd · 6 ba · 3,495 sqft
335 W Enid Dr, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES

Single Family Homes for Sale in Key Biscayne: How This Market Works

Cross the Rickenbacker and the market changes character entirely: Key Biscayne caps its condo density by ordinance, no new building has delivered since 2014, and the village between Crandon and Bill Baggs parks runs on bikes, the K-8 school and the beach. Inventory this constrained rewards patient buyers — units in the established oceanfront buildings rarely linger.

A house in Key Biscayne is the one purchase that comes with its own ground — full authority over the structure, the yard and every renovation decision, with no board upstairs voting on your plans. In a setting shaped by ordinance-capped condos on a parkland island, detached homes stay chronically scarce; nobody is platting new lots on this coast, and that scarcity is what buyers are really paying for.

Key Biscayne Market Snapshot

227
Homes sold, last 12 months
$1.6M
Median sale price
63 days
Median time on market

Frequently Asked Questions

Is a house in Key Biscayne cheaper to carry than a condo?

Different rather than cheaper. You skip the tower-scale association fee, but the roof, the windstorm coverage and the upkeep become yours directly. Roof age and construction era drive the insurance quote more than anything else here, so two similar houses can carry very differently — we price the true monthly cost of any house before you commit to it.

What should I look at first when touring houses in Key Biscayne?

The roof, the build year and the flood zone — the three inputs that set your insurance reality in South Florida. Impact windows and a documented recent roof are worth more than cosmetic upgrades ever will be. We bring that checklist to every showing so the pretty kitchens don't distract from the expensive questions.

Can I see a Key Biscayne property before committing to anything?

Of course. Use the inquiry form on any listing or call +1 786-370-8570 and we will set up a private showing around your calendar. Buyers who live elsewhere can request a recorded video walkthrough of any residence. Looking carries no commitment — deciding comes later, on your terms.

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