MIAMI PRIMECondos

Key Biscayne New Construction for Sale

6 listings

Live MLS inventory in Key Biscayne, updated continuously.

960 Mariner Dr, Key Biscayne, FL 33149
$19,500,000
6 bd · 10 ba · 7,742 sqft
960 Mariner Dr, Key Biscayne, FL 33149
CAPE FLA SUB SEC 2
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
165 Hampton Ln, Key Biscayne, FL 33149
$8,250,000
6 bd · 9 ba · 3,842 sqft
165 Hampton Ln, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 4
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
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: How This Market Works

Cross the Rickenbacker and the market changes character entirely: Key Biscayne caps its condo density by ordinance, no new building has delivered since 2014, and the village between Crandon and Bill Baggs parks runs on bikes, the K-8 school and the beach. Inventory this constrained rewards patient buyers — units in the established oceanfront buildings rarely linger.

Buying new in Key Biscayne means the current building code did the worrying for you — impact glazing, engineered roof connections, modern elevations and systems still under warranty. Land constraints in a place recognized for ordinance-capped condos on a parkland island keep fresh supply tight, and the practical payoff arrives monthly: insurers treat recent construction as a different risk class from the older stock surrounding it.

Key Biscayne Market Snapshot

226
Homes sold, last 12 months
$1.6M
Median sale price
60 days
Median time on market

Frequently Asked Questions

What is different about the contract when buying from a Key Biscayne developer?

Nearly everything — developer contracts are drafted by the seller's counsel, with deposit schedules, completion windows and finish substitutions defined on the seller's terms. Bringing your own representation costs you nothing and changes what actually gets negotiated, from deposit protection to the pre-closing walk-through. We negotiate these agreements regularly across this market.

Are there trade-offs to buying new construction in Key Biscayne?

A few worth naming: nearby construction activity can continue for a while in emerging districts, first-year association budgets are estimates that sometimes rise once the developer hands over control, and delivery dates can slide. None are disqualifying — but each belongs in the decision, and we make sure it gets there.

Can I see a Key Biscayne property before committing to anything?

Of course. Use the inquiry form on any listing or call +1 786-370-8570 and we will set up a private showing around your calendar. Buyers who live elsewhere can request a recorded video walkthrough of any residence. Looking carries no commitment — deciding comes later, on your terms.

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