Homes in Key Biscayne

544 Warren Ln

544 Warren Ln, Key Biscayne FL 33149

Presented by Christopher Johnson, Broker, Johnson Homes LLC

Price
$8,000,000
Bedrooms
6
Baths
6
Interior
1,044 sq ft
Taxes
$29,546 a year
Year built
2026
MLS
A12079811
Schedule a private showing
544 Warren Ln, Key Biscayne

About the home

New construction, this extraordinary custom Cape Dutch residence is a masterwork of timeless design, brought to life by Duncan and Heuser Design and Development, with interiors curated by James Duncan. Every detail, from the graceful gabled facade to the refined finishes within, reflects a rare devotion to craftsmanship and enduring elegance. Offering six generously proportioned bedrooms and six and a half beautifully appointed bathrooms, this home balances gracious scale with warm, livable comfort. Soaring ceilings, thoughtfully placed windows, and an effortless flow between rooms create a sense of light and openness throughout, while curated materials and bespoke millwork lend a distinctly luxurious character to every space. This is more than a house; it is a legacy residence, designed to be lived in beautifully for generations. A truly rare offering for the discerning buyer seeking timeless architecture, exceptional interiors, and uncompromising quality throughout.

Christopher Johnson

Presented by

Christopher Johnson

Broker, Johnson Homes LLC · License #BK3248478

Licensed since 2012, with more than 700 transactions and over $250 million in sales. I'll give you a candid read on this home: what it costs to own, how it compares, and whether it is worth the price.

More about Christopher

Listing courtesy of Duncan Studio Real Estate Division PLLC. The multiple listing information is provided by the MIAMI REALTORS® MLS from a copyrighted compilation of listings. The compilation of listings and each individual listing are © MIAMI REALTORS® MLS. All rights reserved. The information provided is for consumers' personal, non-commercial 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. Data last updated October 10, 2026 at 12:09 PM ET.