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238 Buttonwood Dr, Key Biscayne, FL 33149

NEW CONSTRUCTION

$8,500,000

· $2,029/sqft · Est. $48,177/mo

6 bd · 6.5 ba · 4,190 sqft · MLS# A12021891

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Seller's Disclosure

Property Survey

Floor Plan

Comparative Market Analysis

About 238 Buttonwood Dr, Key Biscayne, FL 33149

Listing details for 238 Buttonwood Dr, Key Biscayne, FL 33149: 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!

Bedrooms

6

Bathrooms

6.5

6 full · 1 half

Square Feet

4,190

Year Built

2026

Garage

2 spaces

HOA

No

Taxes

—

Property Details for 238 Buttonwood Dr, Key Biscayne, FL 33149

MLS# A12021891 · Source: MIAMI + RWorld

Interior

Bedrooms & Bathrooms

  • Bedrooms: 6
  • Full Baths: 6
  • Half Baths: 1

Heating & Cooling

  • Heating: Central
  • Cooling: Central Air

Interior Features

  • Flooring: Hardwood, Wood
  • Has Fireplace: No

Interior Area

  • Total Interior Livable Area: 4,190 sqft

Property

Parking

Garage Spaces
2

Features

View Description
Garden

Details

Zoning
0100

Construction

Type & Style

Property Type
Residential
Architectural Style
Single Family Residence

Materials

Construction Materials
Block
Roof
Concrete

Condition

New Construction
Yes
Year Built
2026

Utilities & Green Energy

Water Source
Public
Sewer
Public Sewer

Community & HOA

Community

Subdivision
Tropical Isle Homes Sub 4

Financial & Listing Details

Price per Sq Ft
$2,029/sq ft
Date on Market
May 21, 2026
MLS Number
A12021891
Listed By
Douglas Elliman

Tropical Isle Homes Sub 4

Tropical Isle Homes Sub 4 is a neighborhood in Key Biscayne.

Location of 238 Buttonwood Dr, Key Biscayne, FL 33149

Street Address
238 Buttonwood Dr
City
Key Biscayne
ZIP Code
33149
Neighborhood
Tropical Isle Homes Sub 4
County
Miami-Dade County
In Tropical Isle Homes Sub 4

Map unavailable for this listing

Estimated monthly

30-yr fixed

$48,177

/mo

$8,500,000 · 20% down · 7.25%

Principal & interest

$46,406

Home insurance

$1,771

Home price

$8,500,000

Down payment

$1,700,000 · 20%

Interest rate

7.25%

Estimates only. Actual costs vary by lender, credit score, and market conditions.

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Frequently Asked Questions About 238 Buttonwood Dr

How much is 238 Buttonwood Dr, Key Biscayne, FL 33149 listed for?

238 Buttonwood Dr, Key Biscayne, FL 33149 is currently listed at $8,500,000. That works out to approximately $2,029 per square foot.


This property features 6 bedrooms, 6.5 bathrooms, 4,190 sq ft of living space.


Based on current MLS data, no HOA fee is listed for this property. We recommend confirming with the seller's disclosure or your agent, as some communities charge fees not reflected in MLS.


238 Buttonwood Dr, Key Biscayne, FL 33149 is located in Key Biscayne, FL 33149. School assignments are set by the county school board and can change. Verify with the county school district before enrolling.


238 Buttonwood Dr, Key Biscayne, FL 33149 is situated in the Tropical Isle Homes Sub 4 neighborhood of Key Biscayne, Florida. Scroll to the Location section on this page for a map and nearby places.

Information is provided for general guidance only and is subject to change. Always verify with your agent or licensed professional.

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Listing Information & Disclaimer

Listed By: Douglas Elliman

MLS #: A12021891MLS Source: MIAMI + RWorldListing Last Updated: Sep 21, 2026

MIAMI + RWorld

All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright ©2026 BeachesMLS, Inc.

Listing information is provided in part by the MIAMI + RWorld Internet Data Exchange program. IDX information is provided exclusively 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. Data is deemed reliable but is not guaranteed accurate by the MLS. Data last updated Nov 14, 2026 6:58 AM. Equal Housing Opportunity.

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238 Buttonwood Dr, Key Biscayne, FL 33149$8,500,000