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Luxury Homes in Key Biscayne, FL

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24 of 104 Listings

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24 of 104 Listings

50Active

Luxury Homes in Key Biscayne, FL — Page 3

104 listings

Luxury Homes in Key Biscayne, FL

Hide Map

24 of 104 Listings

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Luxury Homes in Key Biscayne, FL

24 of 104 Listings

Your Key Biscayne agent

Jonathan Alfonso

Portal Real Estate

Lic. #3306632

Call Jonathan

50Active

Your Key Biscayne agent

Jonathan Alfonso

Portal Real Estate

Lic. #3306632

Call Jonathan

$7,450,000

7 bd · 9 ba · 4,565 sqft

425 Harbor Dr, Key Biscayne, FL

Mark Chatburn · One Sotheby's International Realty

26Active

$1,790,000

3 bd · 3 ba · 1,550 sqft

202 Sunrise Dr 202B, Key Biscayne, FL

Maria Alejandra Alfonzo · Serhant

49Active

$1,499,000

2 bd · 2 ba · 1,610 sqft

200 Ocean Lane Drive 409, Key Biscayne, FL

Martine C. Paulin P L · Compass Florida, LLC

Your Key Biscayne agent

Jonathan Alfonso

Portal Real Estate

Lic. #3306632

Call Jonathan

37Active

$6,900,000

4 bd · 5 ba · 4,200 sqft

785 Crandon Blvd 205/305, Key Biscayne, FL

Kaila Mardoyan · Douglas Elliman

Price Reduced25Active

$1,059,000

2 bd · 2 ba · 1,260 sqft

199 Ocean Lane Dr 911, Key Biscayne, FL

Melissa Llaury · One Sotheby's International Realty

48Active

$9,200,000

5 bd · 6 ba · 4,416 sqft

625 Curtiswood Dr, Key Biscayne, FL

Jennifer Molina · One Sotheby's International Realty

33Active

$3,799,000

2 bd · 4 ba · 1,727 sqft

350 Ocean Dr 405N, Key Biscayne, FL

Lucas Boccheciampe · Vantage Real Estate LLC

Open house Wed, Oct 14 · 12:00 PM45Active

$7,490,000

5 bd · 7 ba · 3,768 sqft

571 Glenridge Rd, Key Biscayne, FL

Dora Puig · Luxe Living Realty

47Active

$18,500,000

5 bd · 6 ba · 4,566 sqft

799 Crandon Blvd Ph-8, Key Biscayne, FL

Natalia Anda · Coldwell Banker Realty

Price Reduced93Active

$17,900,000

5 bd · 6 ba · 4,764 sqft

350 Ocean Dr Lph2N, Key Biscayne, FL

Giulietta Ulloa · BHHS EWM Realty

4Active

$1,350,000

2 bd · 2 ba · 1,409 sqft

1111 Crandon Blvd B506, Key Biscayne, FL

Stephanny Sommers · Florida Capital Realty

22Active

$8,500,000

6 bd · 7 ba · 4,190 sqft

238 Buttonwood Dr, Key Biscayne, FL

Fernanda Moreno · Douglas Elliman

Price Reduced13Active

$1,099,000

2 bd · 2 ba · 1,260 sqft

199 Ocean Lane Dr 413, Key Biscayne, FL

Fernando Echeverri PA · Great Properties International LLC

26Active

$1,690,000

3 bd · 3 ba · 1,550 sqft

204 Sunrise Dr 204B, Key Biscayne, FL

Angel Nicolas · Serhant

Price Reduced69Active

$2,600,000

4 bd · 4 ba · 2,442 sqft

209 E Enid Dr 36, Key Biscayne, FL

Susana Medrano Roth · BHHS EWM Realty

Price Reduced5Active

$1,095,000

3 bd · 2 ba · 1,360 sqft

50 Ocean Lane Dr 404, Key Biscayne, FL

Gabriela Toledo · Green Street Realty

Price Reduced41Active

$2,800,000

3 bd · 3 ba · 2,470 sqft

737 Crandon Blvd 402, Key Biscayne, FL

Claudine Coto · One Sotheby's International Realty

Price Reduced27Active

$1,400,000

2 bd · 3 ba · 1,340 sqft

232 Sea View Dr 108, Key Biscayne, FL

Juanita Lopez · BHHS EWM Realty

82Active

$237,000,000

5 bd · 9 ba · 11,528 sqft

485 W Matheson Dr, Key Biscayne, FL

Jill Eber · Coldwell Banker Realty

30Active

$3,550,000

4 bd · 3 ba · 2,177 sqft

255 Ridgewood Rd, Key Biscayne, FL

Maria Parra Loughlin · Compass Florida, LLC.

Price Reduced40Active

$1,220,000

2 bd · 2 ba · 1,580 sqft

200 Ocean Lane Dr 407, Key Biscayne, FL

Martine C. Paulin P L · Compass Florida, LLC

85Active

$3,549,000

3 bd · 3 ba · 2,510 sqft

791 Crandon Blvd 404, Key Biscayne, FL

Victor Florencio Sanchez · Ocean Club Realty, Inc.

39Active

$5,478,000

4 bd · 4 ba · 3,549 sqft

690 Warren Ln, Key Biscayne, FL

Brigitte Nachtigall · One Sotheby's International Realty

50Active

$3,340,000

3 bd · 3 ba · 2,510 sqft

791 Crandon Blvd 302, Key Biscayne, FL

Elena Chacon · BHHS EWM Realty

1 2 3 4 5

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: 2026-10-05 06:03:04 UTC

Key Biscayne housing market

September 2026 · This period is still settling

Selling at 94.7% of asking price

Buyers here are paying below asking. MLS · 15 sales · as of Sep 30, 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

By price

Homes Under $900K
Homes Under $1M
Homes Under $1.25M
Homes Under $1.5M
Homes Under $1.75M
Homes Under $2M
Homes Under $2.25M
Homes Under $2.5M
Homes Under $2.75M
Homes Under $3M
Homes Over $3M
Luxury 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: 2026-10-05 06:03:04 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 94.7% of asking price

Buyers here are paying below asking. MLS · 15 sales · as of Sep 30, 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.