128 Days on Market
House for Sale
$237,000,000
5 bd · 9 ba · 11,528 sqft
485 W Matheson Dr, Key Biscayne, FL 33149
TROPICAL ISLE HOMES RESUB
Bedrooms
Bathrooms
Key Biscayne 5+ Bedroom Homes for Sale
27 listings
13 Days on Market
House for Sale
$27,900,000
8 bd · 9 ba · 9,159 sqft
241 Cape Florida Dr, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 3
92 Days on Market
House for Sale
$19,950,000
6 bd · 7 ba · 6,208 sqft
120 Knollwood Dr, Key Biscayne, FL 33149
CAPE FLA SUB SEC 2
14 Days on Market
House for Sale
$19,900,000
5 bd · 4 ba · 3,085 sqft
520 S Mashta Dr, Key Biscayne, FL 33149
MASHTA ISLAND A REPLAT OF
180 Days on Market
Condo for Sale
$18,900,000
5 bd · 6 ba · 8,435 sqft
445 Grand Bay Drive # PH-1A, Key Biscayne, FL 33149
GRAND BAY
54 Days on Market
Condo for Sale
$18,500,000
5 bd · 6 ba · 4,566 sqft
799 Crandon Blvd # PH-8, Key Biscayne, FL 33149
OCEAN CLUB
135 Days on Market
Condo for Sale
$17,900,000
5 bd · 6 ba · 4,764 sqft
350 Ocean Dr # LPH2N, Key Biscayne, FL 33149
OCEANA KEY BISCAYNE
Newly Listed
House for Sale
$16,500,000
6 bd · 7 ba · 7,103 sqft
131 Cape Florida Dr, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 3
417 Days on Market
House for Sale
$12,485,000
6 bd · 8 ba · 6,405 sqft
420 Island Dr, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 1
Newly Listed
Home for Sale
$11,750,000
7 bd · 6 ba · 5,074 sqft
110 Reef Ln # 10, Key Biscayne, FL 33149
OCEANA KEY BISCAYNE
536 Days on Market
House for Sale
$9,800,000
6 bd · 7 ba · 5,826 sqft
31 Island Dr, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 3
37 Days on Market
House for Sale
$9,200,000
5 bd · 6 ba · 4,416 sqft
625 Curtiswood Dr, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
123 Days on Market
House for Sale
$8,500,000
6 bd · 7 ba · 4,190 sqft
238 Buttonwood Dr, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 4
24 Days on Market
House for Sale
$8,000,000
6 bd · 6 ba · 1,044 sqft
544 Warren Ln, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB
353 Days on Market
House for Sale
$7,950,000
5 bd · 5 ba · 4,166 sqft
545 SABAL PALM, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 2N
110 Days on Market
House for Sale
$7,490,000
5 bd · 7 ba · 3,768 sqft
571 Glenridge Rd, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB
97 Days on Market
House for Sale
$7,450,000
7 bd · 9 ba · 4,565 sqft
425 Harbor Dr, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 3
117 Days on Market
House for Sale
$7,390,000
6 bd · 7 ba · 4,043 sqft
741 Harbor Dr, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
145 Days on Market
House for Sale
$6,950,000
5 bd · 6 ba · 5,421 sqft
685 Harbor Ln, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
293 Days on Market
House for Sale
$6,900,000
6 bd · 7 ba · 3,550 sqft
110 Hampton Ln, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 4
16 Days on Market
House for Sale
$5,990,000
5 bd · 5 ba · 4,759 sqft
501 Bay Lane, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 3
9 Days on Market
House for Sale
$5,785,000
5 bd · 6 ba · 3,495 sqft
335 W Enid Dr, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
10 Days on Market
House for Sale
$5,600,000
5 bd · 5 ba · 3,197 sqft
755 Curtiswood Dr, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
90 Days on Market
House for Sale
$5,199,000
6 bd · 5 ba · 3,356 sqft
650 Curtiswood Dr, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
Talk to a local agent
Looking at Key Biscayne 5+ Bedroom Homes?
Tell us what you're after — we'll send matching homes, off-market options and recent sales, and set up private showings.
Live MLS inventory in Key Biscayne, updated continuously. Showing homes with 5 or more bedrooms. Florida Lux Real Estate currently tracks 27 active listings here. MLS inventory updated October 10, 2026.
5+ Bedroom Homes for Sale in Key Biscayne: What to Know Before You Search
Beyond the Rickenbacker tollgate, tucked between two state parks, Key Biscayne functions as Miami's island village — a K-8 school and streets where children pedal to the beach. Ordinance limits the condo count and no new building has opened since 2014, which means the scarcity driving prices here is entirely real.
Narrowing Key Biscayne to 5+ bedrooms lands you in the large-format end, where homes suit multigenerational households, dedicated home offices and buyers consolidating two residences into one. In a market known for a family island village between two state parks, fifteen minutes from Brickell, bedroom count is the filter that maps cleanly onto real life — and this page keeps every property type on screen, so you can measure a 5-bedroom condo against a townhome or a house at the same price.
Key Biscayne Market Snapshot
229
Homes sold, last 12 months
$1.6M
Median sale price
61 days
Median time on market
Frequently Asked Questions
What does a 5-bedroom home run in Key Biscayne?
The range is wide, because property type moves the price as much as bedroom count — a 5-bedroom condo, townhome and house in Key Biscayne can sit in entirely different bands. The live listings here show today's asking prices across all three; sort by price to bracket the market in seconds.
Do listed bedroom counts include dens and offices?
A legal bedroom needs a window and a closet, and MLS counts follow that rule — dens and offices are noted separately. If a flex room matters to you, tell us: plenty of Key Biscayne floor plans include a den that lives as an extra bedroom without being counted as one.
How do I arrange a showing in Key Biscayne?
Each listing on this page carries an inquiry form that goes straight to our brokerage — or reach us at +1 786-370-8570. We schedule private tours to fit your calendar and run live video walkthroughs for buyers relocating from out of state, with no obligation attached.
Discover Your Perfect Home
5+ Bedroom Homes for Sale in Nearby Cities
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Key Biscayne Condos for Sale by Type & Price
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Homes Nearby Key Biscayne: Neighborhoods
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Homes Nearby Key Biscayne: Cities
Homes Nearby Key Biscayne: ZIP Codes
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