MIAMI LUXHomes

New Construction for Sale in Key Biscayne, Florida

4 listings

Newest arrivals first — every matching home in Key Biscayne, refreshed as listings hit the market.

544 Warren Ln, Key Biscayne, FL 33149
$8,000,000
6 bd · 6 ba · 1,044 sqft
544 Warren Ln, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB
238 Buttonwood Dr, Key Biscayne, FL 33149
$8,500,000
6 bd · 7 ba · 4,190 sqft
238 Buttonwood Dr, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 4
571 Glenridge Rd, Key Biscayne, FL 33149
$7,490,000
5 bd · 7 ba · 3,768 sqft
571 Glenridge Rd, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB
110 Hampton Ln, Key Biscayne, FL 33149
$6,900,000
6 bd · 7 ba · 3,550 sqft
110 Hampton Ln, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 4

New Construction for Sale in Key Biscayne — A Local's Guide

Key Biscayne is Miami's island village — past the Rickenbacker tollgate, between two state parks, with a K-8 school and streets where kids bike to the beach. Condo supply is capped by ordinance and the last new building arrived in 2014, so the market trades on genuine scarcity.

New construction in Key Biscayne means current building code, hurricane-rated glass, new roofs the insurers love, and warranties instead of surprises. Known for a family island village between two state parks, fifteen minutes from Brickell, Key Biscayne adds new supply only where land allows — so the new-build premium is really an insurance-and-certainty discount spread over years of ownership.

Key Biscayne Market Snapshot

230
Homes sold, last 12 months
$1.6M
Median sale price
61 days
Median time on market

Frequently Asked Questions

Why does new construction in Key Biscayne insure so much better?

Post-2002 Florida code — and especially recent construction — means impact protection, stronger roof attachment and higher elevations. Insurers price to that: the quote difference against an older home with an aging roof can be dramatic. We obtain quotes during diligence so you compare true carrying costs.

Should I use my own agent when buying from a Key Biscayne developer?

Yes — the sales office represents the developer. Your own representation costs you nothing, and matters on contract terms, deposit structure, completion timelines and the punch-list walk. We've negotiated developer contracts across this market.

How do I tour a home in Key Biscayne?

Every listing on this page has an inquiry form that reaches the broker directly — or call +1 786-370-8570. We arrange private showings around your schedule, including video tours for out-of-town buyers, and there is never an obligation.

Discover Your Perfect Home

Shop Key Biscayne by Home Type
Key Biscayne Homes by Bedroom Count
Show more (1)
Key Biscayne Homes by Budget
Waterfront, Luxury & New Construction in Key Biscayne
Key Biscayne Rentals
Neighborhoods Near Key Biscayne
Show more (10)
Cities Near Key Biscayne
Show more (10)
ZIP Codes Near Key Biscayne
Show more (4)