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Buy

Start here

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  • Before you start looking
  • The buying timeline

Afford it

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  • Mortgage calculator
  • How much can I afford?
  • Get pre-approved

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  • Closing costs, itemized
  • Find a buyer's agent
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Sell

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3 bedsNew constructionWith a pool
4 Bedroom Homes in Key Biscayne, FL
5 listings

4 Bedroom Homes in Key Biscayne, FL

4 Bedroom Homes in Key Biscayne, FL

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5 Listings
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4 Bedroom Homes in Key Biscayne, FL

5 Listings

  1. 785 Crandon Blvd 205/305 — photo37Active

    $6,900,000

Your Key Biscayne agent

JA

Jonathan Alfonso

Portal Real Estate

Lic. #3306632

Portal Real EstateCall Jonathan

4 bd · 5 ba · 4,200 sqft

785 Crandon Blvd 205/305, Key Biscayne, FL

Kaila Mardoyan · Douglas Elliman

  • 199 Ocean Lane Dr 401 — photo38Active

    $4,500,000

    4 bd · 4 ba · 2,825 sqft

    199 Ocean Lane Dr 401, Key Biscayne, FL

    Florencia Yagodnik · Swann Realty Partners, LLC.

  • 350 Ocean Dr 701N — photoPrice Reduced52Active

    $11,495,000

    4 bd · 6 ba · 3,787 sqft

    350 Ocean Dr 701N, Key Biscayne, FL

    Lucia Marin · One Sotheby's International Realty

  • 350 E Ocean Dr 301N — photoPrice Reduced41Active

    $8,950,000

    4 bd · 7 ba · 3,798 sqft

    350 E Ocean Dr 301N, Key Biscayne, FL

    Kinga Konsorska · Douglas Elliman

  • 785 Crandon Blvd 705/805 — photo22Active

    $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

  • Explore Key Biscayne homes

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    • With a pool
    Realty.com

    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

    Equal Housing OpportunityEqual Housing Lender

    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.

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    Your Key Biscayne agent

    JA

    Jonathan Alfonso

    Portal Real Estate

    Lic. #3306632

    Portal Real EstateCall 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: 2026-08-26 22:26:00 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

    June 2026

    Key Biscayne 12-month median sale price trend

    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%