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544 Warren Ln, Home For Sale

544 Warren Ln, Key Biscayne, FL 33149

Price: $8,000,000 | 2,229 s.f. | 6 Beds | 5½ Baths

 

Property Information 544 Warren Ln

Listing Price: $8,000,000
Price per Square Foot: $7,662.84/s.f.
Beds: 6
Baths:
Interior Space: 1,044 s.f. (97.0 m²)
Total Size: 2,229 s.f. (207.1 m²)
Lot Size: 7,828 s.f.
Taxes (2025): $29,546
Reference: A12079811
 

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Description of 544 Warren Ln

Description of 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.

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The MLS data provided for the property above (MLS#A12079811) is provided courtesy of Duncan Studio Real Estate Division PLLC. Source: Southeast Florida MLS. Data updated 8/30/2026. Information is deemed reliable but not guaranteed. Copyright © 2026. The listing data on this page comes in part from the Internet Data Exchange (IDX), a collaboration between the following REALTOR(R) associations in the South Florida Multiple Listing Service (MLS): Miami Realtor Association, Realtor Association of Greater Ft. Lauderdale and the South Broward Board of Realtors. All rights reserved. The information being 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. Data is believed to be accurate, but is not warranted. Use of search facilities of data on the site, other than a consumer looking to purchase real estate, is prohibited. Federal law prohibits discrimination on the basis of race, color, religion, sex, handicap, familial status or national origin in the sale, rental or financing of housing.
 

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