5 Bedroom Homes in Key Biscayne, FL

31 listings in Key Biscayne

There are 31 5+ bedroom homes for sale in Key Biscayne, Florida right now, priced from $3.7M to $237M. The median list price is $8,000,000. That puts this segment 221% above the overall Key Biscayne median of $2,490,000 across 151 active listings.

These homes average 5,072 square feet of living area on lots averaging 0.36 acres. Average pricing runs $3,688 per square foot versus $2,424 citywide. The median year built is 2004. 87% of them include a private pool.

This segment averages 146 days on market, 31 days longer than the Key Biscayne average of 115. The median closed-sale price in Key Biscayne is $1,527,500. Deals close at 94.5% of list price. The absorption rate is 12.7%.

The largest concentration is in Biscayne Key Estates, with 7 available listings. The rest is spread across 16 other communities.

María Delgado works the South Florida market daily and can send you the full list with photos, association documents and recent comparables — in English or Spanish.

Market overview

Total active

31

Avg price

$18,701,838.71

Median price

$8,000,000.00

Price range

$3,730,000.00 – $237,000,000.00

Avg $/sqft

$3,687.53

Luxury (1M+)

31

📡

Market Pulse

Based on 86 closed sales in Key Biscayne · last 12 months

💰

Median Sold Price

$1,527,500

from closed sales

📅

Avg. Days on Market

100 days

from list to contract

📊

Absorption Rate

12.7%

of inventory sold per month

🎯

Sale-to-List Ratio

94.5%

of asking price

Source: Spark MLS · Updated every 6h

31 listings in Key Biscayne

24 Grand Bay Estates Circle, Key Biscayne, FL 33149↓ Price drop
Active · Key Biscayne

$4,899,000

24 Grand Bay Estates Circle, Key Biscayne, FL 33149 · Key Biscayne · FL 33149

5 bd · 6 ba · 4,220 sqft

Pool
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315 Cypress Drive, Key Biscayne, FL 33149New
Active · Key Biscayne

$7,599,000

315 Cypress Drive, Key Biscayne, FL 33149 · Key Biscayne · FL 33149

6 bd · 8 ba · 3,980 sqft

PoolFurnished
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550 Harbor Drive, Key Biscayne, FL 33149↓ Price drop
Active · Key Biscayne

$19,450,000

550 Harbor Drive, Key Biscayne, FL 33149 · Key Biscayne · FL 33149

7 bd · 8 ba · 6,497 sqft

WaterfrontPool
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350 Ocean Drive LPH2N, Key Biscayne, FL 33149↓ Price drop
Active · Key Biscayne

$17,900,000

350 Ocean Drive LPH2N, Key Biscayne, FL 33149 · Key Biscayne · FL 33149

5 bd · 6 ba · 4,764 sqft

WaterfrontPool
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571 Glenridge Road, Key Biscayne, FL 33149
Active · Key Biscayne

$7,490,000

571 Glenridge Road, Key Biscayne, FL 33149 · Key Biscayne · FL 33149

5 bd · 7 ba · 3,768 sqft

Pool
View details
685 Harbor Lane, Key Biscayne, FL 33149New
Active · Key Biscayne

$6,950,000

685 Harbor Lane, Key Biscayne, FL 33149 · Key Biscayne · FL 33149

5 bd · 6 ba · 5,421 sqft

Pool
View details
741 Harbor Drive, Key Biscayne, FL 33149↓ Price drop
Active · Key Biscayne

$7,390,000

741 Harbor Drive, Key Biscayne, FL 33149 · Key Biscayne · FL 33149

6 bd · 7 ba · 4,043 sqft

Pool
View details
110 Reef Lane 10, Key Biscayne, FL 33149New
Active · Key Biscayne

$11,750,000

110 Reef Lane 10, Key Biscayne, FL 33149 · Key Biscayne · FL 33149

7 bd · 6 ba · 5,074 sqft

Waterfront
View details
31 Island Drive, Key Biscayne, FL 33149↓ Price drop
Active · Key Biscayne

$9,800,000

31 Island Drive, Key Biscayne, FL 33149 · Key Biscayne · FL 33149

6 bd · 7 ba · 5,826 sqft

Pool
View details
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