544 Warren Ln, Key Biscayne, FL 33149
Days Listed
24
Beds
6
Baths
5
Interior
1044 ft2 (97m2)
Market
Key Biscayne
Direction
Southeast
Description
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.
| Floor Plans
- Days On Market:24Listed:Aug 29, 2026
- Size:1044 ft2 (97m2)Rooms:6
- Bathrooms:5Baths Half:1
- Terms:All Cash, Conventional, Owner Will CarryProperty Facing:Southeast
- Last Modification:1 month ago
Property Taxes and Assessment
- Annual Tax$29,546
- Tax Year2025
- Maintenance FeeN/A
- Association FeeN/A
- TermsAll Cash, Conventional, Owner Will Carry
Property Features
| Facts and features |
|---|
| Views Garden Pool |
| Interior Features First Floor Entry Vaulted Ceiling(s) Walk-In Closet(s) |
| Exterior Features Built-In Grill |
| Appliances Gas Range Ice Maker |
| Parking Attached Carport Driveway On Street |
| Other Facts |
|---|
| Heating Electric |
| Cooling Central Air Electric |
| Flooring Marble Wood |
| Window Features Clear Impact Glass |
| Door Features High Impact Doors |
| Fireplace Features Fireplace |
| Roof Concrete |
| Water Source Municipal Water |
| Sewer Public Sewer |
| Amenities |
|---|
| Pool Features In Ground |
| Patio And Porch Features Open Porch |
| Community Features Additional Amenities |
| Architectural Style Detached Two Story |
| Construction Materials Concrete Block Construction |
| Structure Type Pool Only House |
| Schools |
|---|
| Elementary School Keybiscayne |
| Middle Or Junior School Ponce De Leon |
| High School Mast Academy |
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