Home›544 Warren Lane, Key Biscayne, FL 33149

Residential in Key Biscayne

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 Highlights

Roof

  • Concrete

View

  • Garden
  • Pool

Sewer

  • Public Sewer

Levels

  • Two

Cooling

  • Central Air
  • Electric

Heating

  • Electric

Flooring

  • Marble
  • Wood

Amenities

  • Other

Utilities

  • Cable Available

Appliances

  • Gas Range
  • Ice Maker

Possession

  • Close Of Escrow

Room Types

  • Other

WaterSource

  • Public

PoolFeatures

  • In Ground

Restrictions

  • No Restrictions

Water Source

  • Public

Listing Terms

  • Cash
  • Conventional
  • Owner Will Carry

Pool Features

  • In Ground

Porch Details

  • Porch - Open

ParkingFeatures

  • Attached Carport
  • Carport
  • Driveway
  • On Street

Tax Information

  • New Construction

ExteriorFeatures

  • Built-in Barbecue

InteriorFeatures

  • Vaulted Ceiling(s)
  • Walk-In Closet(s)

Parking Features

  • Driveway
  • On Street
  • Attached Carport
  • Carport

Exterior Features

  • Built-in Barbecue

Interior Features

  • Vaulted Ceiling(s)
  • Walk-In Closet(s)

Master BedroomBath

  • Master Bdrm - Ground

Property Condition

  • New Construction

Special Information

  • Flood Zone

AssociationAmenities

  • Other

Showing Requirements

  • 24 Hour Notice

Outdoor Living Spaces

  • Porch

PatioAndPorchFeatures

  • Porch - Open
  • Porch

Sprinkler Description

  • Auto Sprinkler

Construction Materials

  • Block

Property Details

Property TypeResidential
StyleSingle Family Residence
Year Built2026
CountyMiami-Dade
SubdivisionTROPICAL ISLE HOMES SUB
Living Area1,044 sq ft
Bedrooms6
Baths6
Half Baths1
Private PoolYes
Annual Tax$29,546 (2025)
Listing OfficeDuncan Studio Real Estate Division PLLC
Listing AgentJames S Duncan
Office Phone305-979-2520

544 Warren Lane, Key Biscayne, FL 33149, Key Biscayne, FL 33149