5 Bedroom Homes in Key Biscayne, FL

3 beds

16 listings

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16 Listings

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5 Bedroom Homes in Key Biscayne, FL

16 Listings

Your Key Biscayne agent

Jonathan Alfonso

Portal Real Estate

Lic. #3306632

Call Jonathan

41Active
$5,990,000
5 bd · 5 ba · 4,759 sqft
501 Bay Lane, Key Biscayne, FL
Brigitte Nachtigall · One Sotheby's International Realty
38Active
$19,900,000
5 bd · 4 ba · 3,085 sqft
520 S Mashta Dr, Key Biscayne, FL
Maureen Jauregui · Coldwell Banker Realty
28Active
$3,975,000
5 bd · 5 ba · 3,186 sqft
Address withheld · Key Biscayne, FL
Ana Rodrigues Da Cruz · Coldwell Banker Realty

Listing data & MLS disclosures

BeachesMLS: All listings featuring the BMLS logo are provided by Beaches MLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. 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.
Listing information ©2026 Beaches Multiple Listing Service®. All Rights Reserved. Data Last Updated: 2026-08-26 00:32:56 UTC
MIAMI REALTORS MLS: The multiple listing information is provided by MIAMI Association of Realtors® from a copyrighted compilation of listings. The compilation of listings and each individual listingare ©2026 MIAMI Association of Realtors®. All Rights Reserved.
The information provided is for consumers’ personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Last Updated: 2026-09-03 09:05:00 UTC

Key Biscayne housing market

June 2026

Selling at 94.0% of asking price

Buyers here are paying below asking. MLS · 30 sales · as of Jun 30, 2026

Homes that sold · County records, as of Jun 30, 2026

Median sale price: $1,390,000$843,750–$2,350,000 typical range
Price per sq. ft.: $858
Sales: 28
Paid in cash: 71.4%

Homes on the market · MLS, as of Jun 30, 2026

Median days on market: 31 days

Price trend · Assessor repeat sales, as of Jun 30, 2026

Year-over-year: 3.7%

Key Biscayne, FL community profile

Population: 15,327
Median income: $154,457
Housing units: 7,079
People per sq. mi.: 982.5
Area: 15.6 sq. mi.

Source: HJN community data

Explore Key Biscayne homes

Listing data & MLS disclosures

BeachesMLS: All listings featuring the BMLS logo are provided by Beaches MLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. 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.
Listing information ©2026 Beaches Multiple Listing Service®. All Rights Reserved. Data Last Updated: 2026-08-26 00:32:56 UTC
MIAMI REALTORS MLS: The multiple listing information is provided by MIAMI Association of Realtors® from a copyrighted compilation of listings. The compilation of listings and each individual listingare ©2026 MIAMI Association of Realtors®. All Rights Reserved.
The information provided is for consumers’ personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Last Updated: 2026-09-03 09:05:00 UTC

Your Key Biscayne agent

Jonathan Alfonso

Portal Real Estate

Lic. #3306632

Call Jonathan

Your Key Biscayne agent

Jonathan Alfonso

Portal Real Estate

Lic. #3306632

Call Jonathan

Key Biscayne, FL community profile

Population: 15,327
Median income: $154,457
Housing units: 7,079
People per sq. mi.: 982.5
Area: 15.6 sq. mi.

Source: HJN community data

Key Biscayne housing market

June 2026

Selling at 94.0% of asking price

Buyers here are paying below asking. MLS · 30 sales · as of Jun 30, 2026

Homes that sold · County records, as of Jun 30, 2026

Median sale price: $1,390,000$843,750–$2,350,000 typical range
Price per sq. ft.: $858
Sales: 28
Paid in cash: 71.4%

Homes on the market · MLS, as of Jun 30, 2026

Median days on market: 31 days

Price trend · Assessor repeat sales, as of Jun 30, 2026

Year-over-year: 3.7%

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Your Key Biscayne agent

Listing data & MLS disclosures

Key Biscayne housing market

Homes that sold · County records, as of Jun 30, 2026

Homes on the market · MLS, as of Jun 30, 2026

Price trend · Assessor repeat sales, as of Jun 30, 2026

Key Biscayne, FL community profile

Explore Key Biscayne homes

Listing data & MLS disclosures

Your Key Biscayne agent

Your Key Biscayne agent

Key Biscayne, FL community profile

Key Biscayne housing market

Homes that sold · County records, as of Jun 30, 2026

Homes on the market · MLS, as of Jun 30, 2026

Price trend · Assessor repeat sales, as of Jun 30, 2026