$8,000,000
544 Warren Lane, Key Biscayne, FL 33149
Tropical Isle Homes Sub
Beds
6 Beds
Baths
5.5 Baths
Living Area
1,044 Sq Ft
Lot
0.18 acres
Built
2026
Days Listed
11
Price Per Sq Ft
$7,663/sqft
Listed
Aug 29, 2026
Garage
0 spaces
Property Type
Single Family Residence
Property Overview
This 6-bedroom single family residence at 544 Warren Lane, Key Biscayne, FL 33149 in the Tropical Isle Homes Sub community on 0.18 acres with 1,044 square feet of living area, built in 2026 is listed for $8,000,000. Notable MLS signals include Pool, New Construction.
MLS Public Remarks
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.
Key Biscayne Property Snapshot
Property Type
Residential
Sub Type
Single Family Residence
Stories
2
Total Baths
5.5
Building Area
2,229 sq ft
Lot Size
7,828 sq ft
New Construction
Yes
Condition
New Construction
MLS #
A12079811
Waterfront, Boating & Outdoor
Private Pool
Yes
Pool Features
In Ground
View
Garden, Pool
Patio / Porch
Porch - Open, Porch
Interior & Construction
Interior Features
Vaulted Ceiling(s), Walk-In Closet(s)
Primary Bedroom
Master Bdrm - Ground
Rooms
Other
Appliances
Gas Range, Ice Maker
Flooring
Marble, Wood
Construction
Block
Heating
Electric
Cooling
Central Air, Electric
Furnished
Furnished
Impact Glass
Partial
Parking, HOA & Rules
Garage Spaces
0
Parking Features
Attached Carport, Driveway, On Street, Carport
Community / Access
Other
Restrictions
No Restrictions
Taxes, Utilities & MLS
Annual Taxes
$29,546
Tax Year
2025
Parcel Number
2452050020160
Zoning
0100
County
Miami-Dade
MLS Area
2520
Sewer
Public Sewer
Water Source
Public
Utilities
Cable Available
Photos
59
Listing courtesy of Duncan Studio Real Estate Division PLLC
Listing Agent: James S Duncan
All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright © 2026 BeachesMLS, Inc.
The data relating to real estate for sale on this website comes in part from the Internet Data Exchange (IDX) program of the BeachesMLS. Real estate listings held by brokerage firms other than Levin Investments, Inc are marked with the IDX logo and detailed information about them includes the name of the listing broker. Data provided is deemed reliable but is not guaranteed. All information is subject to change and should be independently verified.
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