544 Warren Ln
Key Biscayne, FL
Listing Details
- $8,000,000
- MLS# A12079811
- Type Residential - Single Family
- Status Active
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... Read more
Key Features
- Built-In Grill
- First Floor Entry
- Vaulted Ceiling(s)
- Walk-In Closet(s)
- Other
- Additional Amenities
Gallery
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Contact the Agent
Luxury Homes Specialist
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Disclaimer: 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 consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information on this site was last updated 10/07/2026. The listing information on this page last changed on 10/07/2026. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of Delta Media Group MLS (last updated Wed 10/07/2026 12:05:47 AM EST) or Miami MLS (last updated Tue 10/06/2026 11:58:48 PM EST) or Stellar MLS (last updated Tue 10/06/2026 11:54:58 PM EST) or SPC MLS (last updated Tue 10/06/2026 11:20:21 PM EST) or Martin MLS (last updated Tue 10/06/2026 11:38:13 PM EST) or Indian River MLS (last updated Tue 10/06/2026 11:30:07 PM EST) or Northeast Florida MLS (last updated Tue 10/06/2026 11:58:48 PM EST) or Beaches MLS (last updated Tue 10/06/2026 11:57:56 PM EST) or Naples MLS (last updated Tue 10/06/2026 11:40:17 PM EST) or PBI MLS (last updated Tue 10/06/2026 11:21:24 PM EST) or Florida Keys MLS (last updated Tue 10/06/2026 8:31:34 PM EST). Real estate listings held by brokerage firms other than Illustrated Properties may be marked with the Internet Data Exchange logo and detailed information about those properties will include the name of the listing broker(s) when required by the MLS. All rights reserved.
Privacy Policy / DMCA Notice / ADA Accessibility
Disclaimer: 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 consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information on this site was last updated 10/07/2026. The listing information on this page last changed on 10/07/2026. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of Delta Media Group MLS (last updated Wed 10/07/2026 12:05:47 AM EST) or Miami MLS (last updated Tue 10/06/2026 11:58:48 PM EST) or Stellar MLS (last updated Tue 10/06/2026 11:54:58 PM EST) or SPC MLS (last updated Tue 10/06/2026 11:20:21 PM EST) or Martin MLS (last updated Tue 10/06/2026 11:38:13 PM EST) or Indian River MLS (last updated Tue 10/06/2026 11:30:07 PM EST) or Northeast Florida MLS (last updated Tue 10/06/2026 11:58:48 PM EST) or Beaches MLS (last updated Tue 10/06/2026 11:57:56 PM EST) or Naples MLS (last updated Tue 10/06/2026 11:40:17 PM EST) or PBI MLS (last updated Tue 10/06/2026 11:21:24 PM EST) or Florida Keys MLS (last updated Tue 10/06/2026 8:31:34 PM EST). Real estate listings held by brokerage firms other than Illustrated Properties may be marked with the Internet Data Exchange logo and detailed information about those properties will include the name of the listing broker(s) when required by the MLS. All rights reserved.
Privacy Policy / DMCA Notice / ADA Accessibility
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All Property Features
- Property Type: Residential - Single Family
- Appliances: Gas Range, Ice Maker
- Community Features: Additional Amenities
- Cooling: Central Air, Electric
- Crops Included Y/N: No
- Days on Site: 38
- Door Features: High Impact Doors
- Exterior: Concrete Block Construction
- Exterior Features: Built-In Grill
- Fireplace: Fireplace
- Flooring: Marble, Wood
- Heating: Electric
- Home Style: Detached, Two Story
- Home Warranty Y/N: No
- Interior Features: First Floor Entry, Vaulted Ceiling(s), Walk-In Closet(s), Other
- Lease Considered Y/N: No
- Listing Terms: All Cash, Conventional, Owner Will Carry
- Lot Description: Less Than 1/4 Acre Lot
- Lot Size: 0.18 Acres
- Parcel#: 24-52-05-002-0160
- Parking: Attached Carport, Driveway, On Street
- Parking Notes: Attached Carport, Driveway, On Street
- Patio/Porch: Open Porch
- Pool: In Ground
- Property Attached Y/N: No
- Property Sub-Type: Single Family Residence
- Roof Type: Concrete
- Sewer: Public Sewer
- Spa: Yes
- Special View Info: Garden, Pool
- Taxes: $29,546
- Water: Municipal Water
- Window: Clear Impact Glass
- Year Built: 2026