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$8,000,000 Just Listed

  • For Sale
  • Active
  • Single Family
  • 6 Beds
  • 5 Full Baths
  • 1 Partial Bath
  • 1,044 Sq. Ft.
  • Updated 2 days ago
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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.

Full Property Details for 544 Warren Ln

General

  • Price: $8,000,000
  • Taxes: $29,546 (2025)
  • Status: Active
  • Type: Single Family
  • Source: Greater_Miami
  • MLS ID: A12079811
  • Updated: 8/29/2026
  • Added to Site: 3 day(s) ago

Interior

  • Interior Features: First Floor Entry, Vaulted Ceiling(s), Walk-In Closet(s), Other
  • Fireplace: Yes
  • Fireplace(s): Fireplace
  • Appliances: Gas Range, Ice Maker
  • Furnished: Yes
  • Furnishings: Furnished
  • Flooring: Marble, Wood

Rooms

Bathrooms

  • Total Bathrooms: 6
  • Full Bathrooms: 5
  • Half Bathrooms: 1

Bedrooms

  • Total Bedrooms: 6
  • Bedroom Features: At Least 1 Bedroom Ground Level

Other Rooms

  • Living Room: Other Sq. Ft.

Additional Information

  • Pool: Yes
  • Pool Description: In Ground, 30x15
  • Spa: Yes

Exterior

  • Exterior Features: Built-In Grill
  • Deck/Patio: Open Porch

Parking

  • Carports: Yes
  • Carport Spaces: 2
  • Covered Spaces: 2
  • Parking Features: Attached Carport, Driveway, On Street

Location

  • Area: Tropical Isle Homes Sub
  • County: Miami-Dade County
  • Subdivision: TROPICAL ISLE HOMES SUB
  • Building Name: TROPICAL ISLE HOMES SUB
  • Direction Faces: Southeast

School Information

  • Elementary School: Keybiscayne
  • Middle School: Ponce De Leon
  • High School: Mast Academy

Community

  • Community Name: Tropical Isle Homes Sub

Heating & Cooling

  • Air Conditioning: Yes
  • Cooling Type: Central Air, Electric
  • Heating Type: Electric

Utilities

  • Sewer: Public Sewer
  • Water: Municipal Water

Structural Information

  • Architectural Style: Detached, Two Story
  • Structure Type: Pool Only, House
  • Detached/Attached: Detached
  • Construction: Concrete Block Construction
  • Roof: Concrete
  • Windows: Clear Impact Glass
  • Doors: High Impact Doors
  • Building Size: 2229
  • Square Feet: 1,044
  • Living Area: 1,044 Sq. Ft.
  • Year Built: 2026
  • Property Condition: New Construction

Lot Features

  • Property View: Garden, Pool
  • Lot Size (Sq. Ft.): 7,828
  • Lot Features: Less Than 1/4 Acre Lot
  • Zoning: 100

Financial Considerations

  • Price Per Sq. Ft.: $7,662.84
  • Tax Amount: $29,546
  • Tax Year: 2025
  • Terms: All Cash, Conventional, Owner Will Carry

Disclosures and Reports

  • Legal Description: 5 55 42 TROPICAL ISLE HOMES SUB PB 50-64 LOT 1 BLK 3 LOT SIZE 77.500 X 101 73R-81592
  • Restrictions: No Restrictions
  • Property ID: 24-52-05-002-0160

Listed by Duncan Studio Real Estate Division PLLC

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Listing agents

— 544 Warren Ln —

  • Duncan Studio Real Estate Division PLLC

  • Duncan Studio Real Estate Division PLLC

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 544 Warren Ln

School District:Dade County School District
NameGradesDistance
Key Biscayne K-8 Center
150 West McIntyre Street, Key Biscayne, FL 33149
PK-50.1 mi
Ponce De Leon Middle School
5801 Augusto Street, Coral Gables, FL 33146
6-86.6 mi
Coral Gables Senior High School
450 Bird Road, Coral Gables, FL 33146
9-126.5 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 544 Warren Ln Get Price Alerts and Save Property

Date
Details
Price
Change
Source
8/29/2026
Listed
$8,000,000
660.1%
MLS
6/18/2020
Sold
$1,052,500
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 544 Warren Ln

Year
Property Taxes
Change
Tax Assessment
Change
2024
$27,639
—
$1,648,697
-15%
2024
$27,639
5%
$1,928,528
4%
2023
$26,323
34%
$1,855,406
65%
2021
$19,644
-11%
$1,126,648
-22%
2022
$22,150
13%
$1,436,763
41%
2021
$19,644
-1%
$1,021,281
-14%
2019
$19,770
-1%
$1,191,708
-4%
2018
$19,996
-19%
$1,245,683
-19%
2017
$24,834
3%
$1,535,676
10%
2016
$24,145
7%
$1,395,886
10%
2015
$22,498
9%
$1,268,988
10%
2014
$20,706
14%
$1,153,626
10%
2013
$18,093
—
$1,048,751
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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*These costs are estimates, and the interest rates assume exceptional credit standing.

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NMLS#: 1598647

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Listed by Duncan Studio Real Estate Division PLLC

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544 Warren Ln, Key Biscayne, FL 33149 (MLS# A12079811) is a Single Family property with 6 bedrooms, 5 full bathrooms and 1 partial bathroom. 544 Warren Ln is currently listed for $8,000,000 and was received on August 29, 2026. Want to learn more about 544 Warren Ln? Do you have questions about finding other Single Family real estate for sale in Key Biscayne? You can browse all Key Biscayne real estate or contact a Coldwell Banker agent to request more information.

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