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Active - House for sale
544 Warren Ln, Key Biscayne FL 33149
Facts & features
Why you’ll love it
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.
Listings courtesy of Duncan Studio Real Estate Division PLLC.
Listed by: James Duncan • 305-979-2520 • Duncan Studio Real Estate Division PLLC
Co-listed by: Rocio Figueroa • 305-979-2520 • Duncan Studio Real Estate Division PLLC
Source: Miami MLS, MLS#: A12079811
Based on info available as of Nov 12, 2026 at 7:10 PM EST.
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Affordability
$42,915/mo
- Mortgage$40,452
- Property tax$2,462
- HOA fee
- Homeowners insurance
Beycome estimates only. Actual amounts and terms vary by lender and location.
$160,000 Credit back
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About Tropical Isle Homes Sub
This local overview has been generated by Artur AI, for informational purposes only. Please verify all details independently before relying on it.
Disclaimer
No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements.
Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions.
Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided.
Copyright ©2026.
Based on information as of Nov 12, 2026 at 07:10pm EST.
Make a winning offer, and get up to
$160,000 Credit back
