544 Warren Ln, Key Biscayne, FL 33149
For Sale $8,000,000
Request Club Info by Email
Calculate Your Payment
Like this listing?
Contact the Listing Agent directly:
Listing Agent: James S Duncan
Agent Phone:
305-979-2520
Agent Email:
james@james-duncan.com
Share Property
Save Property
View Virtual Tour
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.
Vaulted Ceiling(s)
Walk-In Closet(s)
Other
Taxes: $29,546.00
Tax Year: 2025
Built-in Barbecue
Porch - Open
Porch
Gas Range
Ice Maker
Garden
Pool
Elementary School: Key Biscayne K-8
Middle School: Ponce De Leon
Junior High: Ponce De Leon
High School: Coral Gables
MLS Area: 2520
Total Square Footage: 2,229
Price per Square Feet: $7,662.83
Total Rooms: 1
Total Floors: 2
Water: Public
Construction: Block
Date Listed: 2026-08-29 00:00:00
Pool: Y
Pool Description: In Ground
Private Spa: Y
Furnished: Furnished
Parking: Attached Carport, Driveway, On Street, Carport
Flooring: Marble, Wood
Roof: Concrete
Heating: Electric
Cooling: Central Air, Electric
Fireplace: Y
55+ Community: Y
Restrictions: No Restrictions
Sewer: Public Sewer
Parcel ID: 2452050020160
Amenities: Other
Listing Courtesy Of: Duncan Studio Real Estate Division Pllc
james@james-duncan.com
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.
Property Details
Price: $8,000,000
Sq Ft: 1,044
($7,663 per
sqft)
Bedrooms: 6
Bathrooms: 5
Partial Baths: 1
City: Key Biscayne
County: Miami-Dade
Type: Single Family
Development: Tropical Isle Homes Sub
Acres: 0.1800
Virtual Tour/Floorplan: View
Year Built: 2026
Listing Number: A12079811
Status Code: A-Active
Taxes: $29,546.00
Tax Year: 2025
Garage:
Furnishings: Furnished
Interior Features:
Vaulted Ceiling(s)
Walk-In Closet(s)
Amenities:
Other
Financial Information:
Taxes: $29,546.00
Tax Year: 2025
Exterior Features:
Built-in Barbecue
Porch - Open
Porch
Equipment:
Gas Range
Ice Maker
View:
Garden
Pool
School Information:
Elementary School: Key Biscayne K-8
Middle School: Ponce De Leon
Junior High: Ponce De Leon
High School: Coral Gables
Additional Information:
MLS Area: 2520
Total Square Footage: 2,229
Price per Square Feet: $7,662.83
Total Rooms: 1
Total Floors: 2
Water: Public
Construction: Block
Date Listed: 2026-08-29 00:00:00
Pool: Y
Pool Description: In Ground
Private Spa: Y
Furnished: Furnished
Parking: Attached Carport, Driveway, On Street, Carport
Flooring: Marble, Wood
Roof: Concrete
Heating: Electric
Cooling: Central Air, Electric
Fireplace: Y
55+ Community: Y
Restrictions: No Restrictions
Sewer: Public Sewer
Parcel ID: 2452050020160
Amenities: Other
Map of 544 Warren Ln, Key Biscayne, FL 33149
Listing Courtesy Of: Duncan Studio Real Estate Division Pllc
james@james-duncan.com