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121 Knollwood Drive, 
Key Biscayne, FL 33149

$13,850,000


5

Beds


5

Baths


4,924

Sq Ft


Single Family

Active

Listed by

Brigitte Nachtigall

Mark Chatburn

One Sotheby'S International Realty

Last updated:

January 14, 2026, 11:12 AM

MLS#

A11936017

Source:

SEFMLS

About This Home

121 Knollwood Drive

Designed for those who value privacy, space, and a true connection to the water, this exceptional waterfront residence offers a rare boater’s retreat and a warm, inviting setting for family living. Tucked away on a quiet street and set on an expansive nearly 14,000-square-foot lot, the home impresses from the moment you arrive with its generous front yard and gated entry, offering both presence and privacy. Inside, a bright two-story layout unfolds with an open, airy feel, thoughtfully designed for both everyday comfort entertaining. The residence features five bedrooms, four full bathrooms, plus a cabana bath, all flowing seamlessly enhanced by abundant natural light and tranquil water views. Renovated in 2019, the home includes impact windows and doors, a beautifully updated kitchen and appliances, lighting throughout, gas generator, and a pool heater and chiller for year-round enjoyment. The outdoor living experience is truly exceptional…enjoy direct water access with a private dock, boat lift, and two dry jet-ski docks, allowing you to step straight from your backyard to open water and fully embrace the waterfront lifestyle. A detached, enclosed two-car garage adds versatility, while the gated property offers abundant parking for up to six vehicles, a rare and valuable amenity in Key Biscayne. Homes of this caliber which offer privacy, boating infrastructure, generous land, and modern upgrades are increasingly rare and best appreciated in person.

Home Facts

Single Family

5 Baths

5 Bedrooms

Built in 1972

Price Summary

13,850,000

$2,812 per Sq. Ft.

MLS #:

A11936017

Last Updated:

January 14, 2026, 11:12 AM


Rooms & Interior

Bedrooms

Total Bedrooms:

5

Bathrooms

Total Bathrooms:

5

Full Bathrooms:

4

Interior

Living Area:

4,924 Sq. Ft.


Structure

Structure

Architectural Style:

Two Story

Building Area:

5,775 Sq. Ft.

Year Built:

1972


Lot

Lot Size (Sq. Ft):

13,947


Finances & Disclosures

Finances

Price:

$13,850,000

Price per Sq. Ft:

$2,812 per Sq. Ft.

Source:SEFMLS
Information deemed reliable but not guaranteed. Information is provided, in part, by Greater Miami MLS. This information being provided is for consumer's personal, non-commercial use and may not be used for any other purpose other than to identify prospective properties consumers may be interested in purchasing.

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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.