Single Family Residence / Key Biscayne
544 Warren Lane, Key Biscayne, FL 33149
Key Biscayne / TROPICAL ISLE HOMES SUB
$8M544 Warren Lane, Key Biscayne, FL 33149
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Property Overview
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.
Gallery
Photography
Location
Location
The neighborhood
Area insights
Lifestyle
Beaches, Crandon Park, Bill Baggs Cape Florida State Park and a close-knit island community.
Transport
Single causeway to Brickell, about 15 to 20 minutes without traffic.
Schools
Island public schools and private options on the mainland.
Safety & environment
Quiet island setting; review flood zone and elevation for each property.
Buyer profile
Buyers looking for beaches, privacy and a small-town feel near the city.
Key facts
Features
Private showing
Request a private visit.
Listing courtesy of Duncan Studio Real Estate Division PLLC (James S Duncan). Source: BeachesMLS. Information deemed reliable but not guaranteed; verify independently.