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6 Beds
7 Baths
4,190 sqft

$8,500,000

238 Buttonwood Dr, Key Biscayne FL, 33149

Price per sqft$2,028.64
Built in2026
Property size4,190 sqft
Property typeResidential

Overview

Active

Listed May 21, 2026

Updated 3 days ago

A unique architectural masterpiece in the heart of Key Biscayne, this brand-new contemporary residence by Praxis Architecture blends modern tropical luxury with exceptional craftsmanship and bespoke European finishes. Set on an oversized 9,000 SF lot, the residence offers 6 bedrooms, 6 full bathrooms, 1 half bath, and over 4,190 SF of curated living space designed around natural light, privacy, and seamless indoor-outdoor living. Imported Spanish porcelain and ceramic surfaces, Italian-engineered wood flooring, Portuguese interior doors, and refined finishes sourced from the United Kingdom create a warm and sophisticated architectural atmosphere throughout. Custom millwork — including the kitchen, bar, wardrobes, and integrated TV units — was exclusively crafted by a French maison specializing in ultra-luxury bespoke cabinetry. The residence highly designed kitchen is equipped with Wolf, Sub-Zero, and Miele appliances, smart-home automation, and integrated security. Outdoor spaces feature a spectacular 36-foot swimming pool, expansive terraces, summer kitchen, lush private garden patio, and multiple entertaining areas designed for effortless resort-style living. Located moments from tennis courts and the Key Biscayne Yacht Club, beaches, marinas, top-rated schools, and the best of island living, this residence represents one of Key Biscayne’s most thoughtfully designed brand new-construction homes - Expected to be finished in July 2026. Easy to Show!

$56,551/mo

Est. mortgage payment based on a $8,500,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
A12021891

Interior Features

Bedrooms
6
Bathrooms
7
Cooling
Yes
Heating
Yes
Basement
No

Exterior Features

Lot Size
0.2 Acres

Other Property Details

Taxes
$12,000
Tax Frequency
Annually
Garage
Yes
View
Yes
Pets Allowed
Yes
New Construction
Yes
Pool
Yes
MLS provider logo

Based on information from the Miami Association of REALTORS®. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS.  All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent. The listing broker’s offer of compensation is made only to participants of the MLS where the listing is filed. 

©2026 Miami Association of REALTORS® all rights reserved. 

Data last updated 6:50 AM UTC, 9/22/2026.

Listed by:  Douglas Elliman, 305-677-5000

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