Realty.com
Buy

Start here

  • Homes for sale by state
  • Home buying tips
  • Before you start looking
  • The buying timeline

Afford it

  • Today's mortgage rates
  • Mortgage calculator
  • How much can I afford?
  • Get pre-approved

Make the deal

  • Writing a winning offer
  • Inspections & appraisals
  • Closing costs, itemized
  • Find a buyer's agent
Sell

Selling Options

  • What's my home worth?
  • Compare selling options
  • Get an instant cash offer
  • Buy before you sell

Resources

  • How selling works
  • When should I sell?
  • Home selling tips
  • Pricing your home
  • What's worth fixing first
  • Find a seller's agent
Home Loans
Find an Agent
Save searchAdvertiseSign In
Saved homesSaved searchesYour toursYour inquiriesRecently viewedAccount settings

Safety & registry resources

Review official public-safety information for any area from these government sources:

  • U.S. Dept. of Justice National Sex Offender Public Website (NSOPW)
  • FBI: state sex-offender registry directory
Save search
Co-ops in Key Biscayne, FL
Realty.com
Buy

Start here

  • Homes for sale by state
  • Home buying tips
  • Before you start looking
  • The buying timeline

Afford it

  • Today's mortgage rates
  • Mortgage calculator
  • How much can I afford?
  • Get pre-approved

Make the deal

  • Writing a winning offer
  • Inspections & appraisals
  • Closing costs, itemized
  • Find a buyer's agent
Save searchAdvertiseSign In
Saved homesSaved searchesYour toursYour inquiriesRecently viewedAccount settings
  • Commercial

Safety & registry resources

Review official public-safety information for any area from these government sources:

  • U.S. Dept. of Justice National Sex Offender Public Website (NSOPW)
  • FBI: state sex-offender registry directory
Save search
3 beds
5 listings
Sell

Selling Options

  • What's my home worth?
  • Compare selling options
  • Get an instant cash offer
  • Buy before you sell

Resources

  • How selling works
  • When should I sell?
  • Home selling tips
  • Pricing your home
  • What's worth fixing first
  • Find a seller's agent
Home Loans
Find an Agent
New construction
With a pool

Co-ops in Key Biscayne, FL

Co-ops in Key Biscayne, FL

Hide Map
5 Listings
Map

Co-ops in Key Biscayne, FL

5 Listings

Your Key Biscayne agent

JA

Jonathan Alfonso

Portal Real Estate

Lic. #3306632

Portal Real EstateCall Jonathan
  1. 200 Ocean Lane Dr Pb4 — photo49Active

    $1,400,000

    1 bd · 1 ba · 1,217 sqft

    200 Ocean Lane Dr Pb4, Key Biscayne, FL

    Martine C. Paulin P L · Compass Florida, LLC

  2. 200 Ocean Lane Dr 501 — photo50Active

    $3,850,000

    4 bd · 4 ba · 1,880 sqft

    200 Ocean Lane Dr 501, Key Biscayne, FL

    Alejandro Deane · Luxuri International Real Estate Miami, LLC.

  3. 200 Ocean Lane Drive 409 — photo49Active

    $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

  4. 200 Ocean Lane Dr 401 — photoPrice Reduced26Active

    $3,600,000

    3 bd · 3 ba · 2,412 sqft

    200 Ocean Lane Dr 401, Key Biscayne, FL

    Maria Parra Loughlin · Compass Florida, LLC.

  5. 200 Ocean Lane Dr 407 — photoPrice 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

Explore Key Biscayne homes

By price

  • Under $300K
  • Under $500K
  • Under $700K
  • Luxury

By bedrooms

  • 2 beds
  • 3 beds
  • 4 beds
  • 5 beds

By type

  • Single family
  • Townhomes
  • Condos
  • Manufactured homes
  • Multi-family homes
  • Co-ops
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.

© 2026 Realty.com. All rights reserved.·Privacy·Terms·California Privacy Rights·Accessibility·Licensing

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: 2026-08-24 19:06:47 UTC
  • By feature

    • New construction
    • With a pool

    Your Key Biscayne agent

    JA

    Jonathan Alfonso

    Portal Real Estate

    Lic. #3306632

    Portal Real EstateCall 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

    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%