Views - Seller Financing
Address
544 Warren Ln, Key Biscayne, FL
Price
$ 8,000,000
Property Attributes
- MLS#A12079811
- TypeSingle Family
- Listing Status Active
- CountyMiami-Dade
- CityKey Biscayne
- Area52
- NeighborhoodTROPICAL ISLE HOMES SUB
- Zip33149
- Style
- Year Built2026
- Taxes$ 29546
- Price$ 8,000,000
- Bedrooms6
- Full Bathrooms5
- Half Bathrooms1
- Sqr Footage1044
Data Source:
Southeast Florida MLS (SEFMLS)
Property Description
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.
| Elementary School | Middle School | High School |
|---|---|---|
| Keybiscayne Elementary School | Ponce De Leon Middle School | Mast Academy High School |
| Price History | |
|---|---|
| 8/29/2026 | Listed $8,000,000 |
General Features
| Sewer | Public Sewer |
|---|---|
| Heating | Electric |
| Cooling | Central Air,Electric |
| Utilities | Cable Available |
| Possession | Close Of Escrow |
| Roof | Concrete |
| Appliances | Gas Range,Ice Maker |
| Patio/Porch Features | Open,Porch |
| Architectural Style | Detached,Two Story |
| Pool Features | In Ground,Pool |
| Restrictions | No Restrictions |
| Construction Materials | Block |
| Year Built | 2026 |
| View | Garden,Pool |
| Stories Count | 2 |
| Levels | Two |
| Property Subtype | Single Family Residence |
| Tax Year | 2025 |
| Community Features | Other |
| County | Miami-Dade |
| Property Type | Residential |
| Subdivision Name | TROPICAL ISLE HOMES SUB |
| Facing Direction | Southeast |
| Garage Y/N | false |
| Full Baths | 5 |
| Status | Active |
| High School | Mast Academy |
| City | Key Biscayne |
| Disclosures | Flood Plain Disclosure |
| Senior Community Y/N | false |
| Zoning Description | 0100 |
| MLS Area | 52 |
| Lot Size Units | Square Feet |
| Lot Size Square Feet | 7828 |
| Carport Spaces | 2 |
| Carport Y/N | true |
| Listing Terms | Cash,Conventional,Owner May Carry |
| Elementary School | Keybiscayne |
| Year Built Details | New Construction |
| Tax Annual Amount | 29546 |
| Middle/Junior High School | Ponce De Leon |
| Lease Considered Y/N | false |
| Virtual Tour | https://www.propertypanorama.com/instaview/mia/A12079811 |
| Standard Status | Active |
| Occupancy Type | Call Agent |
| Property Sub Type Additional | Single Family Residence |
| PostalCity | Key Biscayne |
| Legal Description | 5 55 42 TROPICAL ISLE HOMES SUB PB 50-64 LOT 1 BLK 3 LOT SIZE 77.500 X 101 73R-81592 |
Interior Features
| Interior Amenities | Bedroom on Main Level,First Floor Entry,Fireplace,Vaulted Ceiling(s),Walk-In Closet(s) |
|---|---|
| Flooring | Hardwood,Marble,Wood |
| Furnished Y/N | Furnished |
| Air Conditioning Y/N | true |
| Heating Y/N | true |
| Window Features | Impact Glass |
| Fireplace Y/N | true |
| Half Baths | 1 |
| Total Bedrooms | 6 |
| Total Baths | 6 |
Exterior Features
| Exterior Amenities | Security/High Impact Doors,Outdoor Grill,Porch |
|---|---|
| Parking Features | Attached Carport,Driveway,On Street |
| Lot Features | Sprinklers Automatic,< 1/4 Acre |
| Water Source | Public |
| Lot Size Area | 7828 |
| Spa | true |
| Building Area Total | 2229 |
| Private Pool | true |
| Waterfront Y/N | false |
| Covered Spaces | 2 |
Amenities
- Foreclosure
- Views
- Short Sale
- New Construction
- Adult 55+
- Lease To Own
- No HOA Fees
- Furnished
- Primary On Main
- Air Conditioning
- Seller Finance
- Green
- Fixer Upper
- Horse
- Golf
- Fireplace
- Deck
- Garage
- Basement
- Pool
Property vs Single Family Average in 33149
Price
Taxes
Year Built
Copyright Southeast Florida Multiple Listing Service © 2026. Accuracy of listing information is not guaranteed. Listing information is provided for personal consumer, non-commercial use, solely to identify potential properties for potential purchase. All other use is strictly prohibited, is a violation of the terms of use, and may violate federal and state law.
Data Last Updated: September 14, 2026 11:10 PM UTC
All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data relating
