544 Warren Lane
Key Biscayne, FL 33149
6
Bed
6
Bath
1,044Sqft
7,828Sqft(Lot)
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 t
Property Details
Map
Map
What's Nearby
Nearby Areas
Features
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Bedroom Information
Total beds: 6Bathroom Information
Total Baths: 6 Full Baths: 5 Half Baths: 1Room Information
Rooms Total: 1Roofing Information
ConcreteFlooring Information
Marble, Wood -
Interior Features
MainLevelPrimary, VaultedCeilings, WalkInClosetsRoof: ConcreteAppliances: GasRange, IceMaker -
Heating & Cooling
Has Heating: Yes Heating: Electric Has Cooling: Yes Cooling: CentralAir, Electric
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Building Information
Year Built: 2026Building Area Total: 2229Construction Materials: BlockStories: 2Patio And Porch Features: PorchPool Features: InGroundPrivate Pool: YesView: Garden, Pool -
Exterior Features
Exterior Features: BuiltInBarbecue, Barbecue, OutdoorLivingArea
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Lot Information
Main Square Feet: 7828 Lot Size Acres: 0.18 Lot Description: SprinklersAutomaticProperty Information
Subdivision: TROPICAL ISLE HOMES SUB Source Property Type: Residential Postal Code Plus 4: 1827 Property SubType: Single Family Residence Direction Faces: Southeast Levels: Two Property Age: 0
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Listing Price Information
Listing Price: $8000000Cash, Conventional, OwnerWillCarry
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Tax Information
Parcel Number: 2452050020160 Tax Year: 2025 Annual Tax: $29546 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
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Virtual Tour
Parking Information
AttachedCarport, Carport, Driveway, OnStreetHomeowners Association Information
Association Amenities: Other
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School Information
Elementary School: Key Biscayne K-8 Junior High School: Ponce De Leon Senior High School: Coral Gables -
Utility Information
CableAvailable -
Location Information
WaterSource: Public
How much is this property worth?
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Nearby Home Value
| Address | Estimate | Bed | Bath | Sq. Ft | Lot Size |
|---|---|---|---|---|---|
| 24 Grand Bay Estates Ci.., Key Biscayne, FL, 33149 | $4,950,000 | 5 | 6 | 4,220 | 4,220 SqFt |
| 640 S Mashta Dr, Key Biscayne, FL, 33149 | $16,800,000 | 4 | 4 | 3,620 | 3,620 SqFt |
| 110 Hampton Ln, Key Biscayne, FL, 33149 | $6,900,000 | 6 | 7 | 3,550 | 3,550 SqFt |
| 797 Glenridge Rd, Key Biscayne, FL, 33149 | $5,200,000 | 5 | 5 | 3,535 | 3,535 SqFt |
| 200 Ocean Lane Drive #407, Key Biscayne, FL, 33149 | $1,220,000 | 2 | 2 | 1,580 | 1,580 SqFt |
| 200 Ocean Lane Drive #401, Key Biscayne, FL, 33149 | $3,600,000 | 3 | 3 | 2,412 | 2,412 SqFt |
| 200 Ocean Lane Drive #501, Key Biscayne, FL, 33149 | $3,850,000 | 4 | 4 | 1,880 | 1,880 SqFt |
| 200 Ocean Lane Drive #PB4, Key Biscayne, FL, 33149 | $1,400,000 | 1 | 1 | 1,217 | 1,217 SqFt |
| 200 Ocean Lane Drive #409, Key Biscayne, FL, 33149 | $1,499,000 | 2 | 2 | 1,610 | 1,610 SqFt |
| 31 Island Drive, Key Biscayne, FL, 33149 | $9,800,000 | 6 | 7 | 5,826 | 5,826 SqFt |
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ByOwner last updated this listing 08/30/2026 @ 05:06
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