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Homes Over $3M in Key Biscayne, FL

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9 of 57 Listings

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9 of 57 Listings

24Active
$6,900,000

Homes Over $3M in Key Biscayne, FL — Page 3

57 listings

Homes Over $3M in Key Biscayne, FL

Hide Map

9 of 57 Listings

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Homes Over $3M in Key Biscayne, FL

9 of 57 Listings

Your Key Biscayne agent

Jonathan Alfonso

Portal Real Estate

Lic. #3306632

Call Jonathan

24Active
$6,900,000

Your Key Biscayne agent

Jonathan Alfonso

Portal Real Estate

Lic. #3306632

Call Jonathan

6 bd · 7 ba · 3,550 sqft

110 Hampton Ln, Key Biscayne, FL

Jacqueline Molina · Fortune Christie's Intl R.E.

60Active

$3,150,000

2 bd · 3 ba · 2,100 sqft

789 Crandon Blvd 1005, Key Biscayne, FL

Victor Florencio Sanchez · Ocean Club Realty, Inc.

24Active

$25,900,000

4 bd · 4 ba · 2,566 sqft

200 Harbor Dr, Key Biscayne, FL

Carlos Mandiola · Coldwell Banker Realty

Your Key Biscayne agent

Jonathan Alfonso

Portal Real Estate

Lic. #3306632

Call Jonathan

Price Reduced67Active

$3,800,000

4 bd · 4 ba · 3,403 sqft

691 Ridgewood Rd, Key Biscayne, FL

Felipe Franco · BHHS EWM Realty

Price Reduced100Active

$7,950,000

5 bd · 5 ba · 4,166 sqft

545 Sabal Palm, Key Biscayne, FL

Brigitte De Langeron · DLS International Realty

Price Reduced82Active

$12,485,000

6 bd · 8 ba · 6,405 sqft

420 Island Dr, Key Biscayne, FL

Elena Chacon · BHHS EWM Realty

39Active

$3,650,000

2 bd · 4 ba · 1,830 sqft

360 Ocean Dr 205S, Key Biscayne, FL

Bruno Ricci · Fortune Christie's International Real Estate

Price Reduced26Active

$9,800,000

6 bd · 7 ba · 5,826 sqft

31 Island Dr, Key Biscayne, FL

Fernando Gimenez · Gimeza A Real Estate Corp.

22Active

$5,450,000

4 bd · 5 ba · 4,200 sqft

785 Crandon Blvd 705/805, Key Biscayne, FL

Douglas Kinsley · Fortune Christie's International Real Estate

1 2 3

Listing data & MLS disclosures

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: 2026-09-30 18:01:31 UTC

Key Biscayne housing market

September 2026 · This period is still settling

Selling at 94.8% of asking price

Buyers here are paying below asking. MLS · 12 sales · as of Sep 25, 2026

Homes on the market · MLS, as of Sep 27, 2026

Median list price: $2,600,000
Homes for sale: 139

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Sep 11, 2026

Median home size: 1,838 sq. ft.

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

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L. Custen Realty, Inc. d/b/a Realty.com/L. Custen Realty CT, LLC d/b/a Realty.com (Tom O’Leary-Broker)(CT properties only), 8323 Southwest Freeway, Suite 900, Houston, Texas 77074

The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Listing data is derived from various Multiple Listing Services; each source MLS and its required disclaimer are shown with the listings on the applicable page. Realty.com is an independently owned and operated brokerage.

Your Key Biscayne agent

Jonathan Alfonso

Portal Real Estate

Lic. #3306632

Call Jonathan

Listing data & MLS disclosures

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: 2026-09-30 18:01:31 UTC

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

September 2026 · This period is still settling

Selling at 94.8% of asking price

Buyers here are paying below asking. MLS · 12 sales · as of Sep 25, 2026

Homes on the market · MLS, as of Sep 27, 2026

Median list price: $2,600,000
Homes for sale: 139

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Sep 11, 2026

Median home size: 1,838 sq. ft.