House in Key Biscayne, FL 33149Tropical Isle Homes, 238 Buttonwood Dr
$8,500,000
6
Beds61/2
Baths4,190
SqFt$2,029
$/SqFtUltra Luxury HouseProperty Type
2026Year Built
$2,029/SqFtPrice per sq ft
2 carsParking Spaces
GardenView
Two StoryStyle
PRECONSTRUCTION ~Est. 2026
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!Pre-Construction listings in the subdivision are those that you are buying before or while it is being built.
Listing Courtesy Of: Douglas Elliman
Local Realty Services Provided By: Best of Luxury Realty
On Site: 158 DaysUpdated: 35 Days agoPage Views: 0
Features
MLS Number: A12021891
Bedrooms
- Bedrooms: 6
Bathrooms
- Bathrooms: 6
- Half Bathrooms: 1
Exterior and Lot Features
- Exterior Features: Balcony, Fence, FruitTrees, SecurityHighImpactDoors, OutdoorGrill, Patio
- View: Garden
Interior, Heating and Cooling
- Interior Features: BuiltInFeatures, BedroomOnMainLevel, Bathtub, ClosetCabinetry, EntranceFoyer, EatInKitchen, FamilyDiningRoom, FirstFloorEntry, Pantry, SeparateShower, WalkInClosets
- Equipment / Appliances: Dryer, Dishwasher, ElectricRange, Microwave, Refrigerator, TrashCompactor, WineCooler, Washer
- Heating Description: Central
- Cooling Description: CentralAir
Building and Construction
- Floor Description: Hardwood,Wood
- Year Built: 2026
- Year Built Description: New Construction
- Style: TwoStory
Waterfront and Water Access
- Waterfront Frontage: No info
School Information
- Elementary School: Keybiscayne
- Middle School: Ponce De Leon
- Senior High School: Coral Gables
Other Property Info
- Garage: 2
- Listing Date: 2026-05-21T11:06:20.000-00:00
- Directions: East
- Pets Allowed: No,Yes
Taxes, Fees & More
- Taxes: 12000
- Parking Description: Covered
Apples-to-Apples Comparables
Price History
Date
Event
Price
Change
Price Per
05/19/2026
Listed
$8.5M
 $2,029 ft2
$21,836 m2
05/19/2026
$8.5M
Event
Listed
Price Per
$2,029 ft2
$21,836 m2
Price per square foot and days on website are not provided values and are calculated by Subdivisions.
Listed by Fernanda Moreno • Douglas Elliman • Buyer Agency Compensation .
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Community Snapshot
3 – 7 BR
Bedrooms
$3.3M – $25.9M
Price Tier
1,044 - 10,574
SqFt Range
1963
Year Build
2
Total Floors
612
Total Units
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