Basic Information
- MLS # A12079811
- Type Single Family Residence
- Status Active
- Subdivision/Complex Tropical Isle Homes Sub
- Year Built 2026
- Total Sqft 7,828
- Date Listed 08/29/2026
- Days on Market 33
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.
Exterior Features
- Waterfront No
- Parking Spaces 0
- Pool Yes
- View Garden, Pool
- Construction Type Block
- Parking Description Attached Carport, Driveway, On Street
- Exterior Features Security High Impact Doors, Outdoor Grill, Porch
- Roof Description Concrete
- Style Single Family Residence
Interior Features
- Adjusted Sqft 1,044Sq.Ft
- Cooling Description Central Air, Electric
- Equipment Appliances Gas Range, Ice Maker
- Floor Description Hardwood, Marble, Wood
- Heating Description Electric
- Interior Features Bedroom On Main Level, First Floor Entry, Fireplace, Vaulted Ceilings, Walk In Closets
- Sqft 1,044Sq.Ft
Property Features
- Address 544 Warren Ln
- Aprox. Lot Size 7,828
- Architectural Style Detached, Two Story
- City Key Biscayne
- Community Features Other
- Construction Materials Block
- County Miami- Dade
- Covered Spaces 2
- Direction Faces Southeast
- Furnished Info yes
- Levels Two
- Listing Terms Cash, Conventional, Owner May Carry
- Lot Features Sprinklers Automatic, Less Than Quarter Acre
- Occupant Type Call Agent
- Parking Features Attached Carport, Driveway, On Street
- Patio And Porch Features Open, Porch
- Pool Features In Ground, Pool
- Possession Close Of Escrow
- Postal City Key Biscayne
- Public Survey Section Two
- Public Survey Township 24
- Roof Concrete
- Sewer Description Public Sewer
- Stories 2
- HOA Fees $0
- Subdivision Complex
- Subdivision Info Tropical Isle Homes Sub
- Tax Amount $29,546
- Tax Legal desc 5 55 42 TROPICAL ISLE HOMES SUB PB 50-64 LOT 1 BLK 3 LOT SIZE 77.500 X 101 73R-81592
- Tax Year 2025
- Terms Considered Cash, Conventional, Owner May Carry
- Type of Property Single Family Residence
- View Garden, Pool
- Water Source Public
- Window Features Impact Glass
- Year Built Details New Construction
544 Warren Ln
Key Biscayne, FL 33149Similar Properties ForSale
The multiple listing information is provided by the Miami Association of Realtors® from a copyrighted compilation of listings. The compilation of listings and each individual listing are ©2023-present Miami Association of Realtors®. All Rights Reserved. The information provided is for consumers' personal, noncommercial 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. Listing courtesy of: Duncan Studio Real Estate Division PLLC. tel: 305-979-2520
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