Key Biscayne · 2026
Key Biscayne
Luxury Real Estate
Waterfront Estates · Island Living · Oceanfront Condos · $1.5M to $50M+
$3.5M–$8M
Median Luxury Price
$15M–$50M+
Waterfront Estates
$1,200–$3,000+
Price Per SF
$1.5M–$7M+
Oceanfront Condos
Overview
Miami's Most Exclusive
Island Community
Key Biscayne is one of Miami's most exclusive and private luxury communities — an island paradise known for its pristine beaches, turquoise waters, world-class parks, top-rated schools, and relaxed yet upscale lifestyle. Connected to Miami by the scenic Rickenbacker Causeway, Key Biscayne offers residents a unique blend of tranquility, safety, luxury, and unmatched natural beauty.
This barrier island is home to some of Miami's most desirable luxury properties: waterfront estates with direct ocean or bay access, private gated communities, resort-style condominiums, and boutique oceanfront residences. Key Biscayne is especially popular among high-net-worth families, executives, international buyers, and long-term residents seeking a safe, peaceful environment within minutes of Miami's business and cultural centers.
With gorgeous beaches, marinas, golf, tennis, parks, and a sophisticated village center, Key Biscayne delivers a lifestyle unlike any other in South Florida.
With over 19 years of experience in Miami's luxury market, Julian Acosta provides expert guidance, private showings, and exclusive access to premier homes and estates across Key Biscayne.
Market Data
Key Biscayne
Luxury Market Facts
$3.5M–$8M
Median Luxury Home Price
$15M–$50M+
Ultra-Luxury Waterfront Estates
$1.5M–$7M+
Oceanfront & Bayfront Condos
$1,200–$3,000+
Price Per Sq Ft (Luxury Tier)
UHNW families, international buyers, long-term residents
Buyer Profile
Single-family homes, waterfront estates, luxury condos
Primary Property Types
Top-rated private and public schools
Schools
Beaches, marinas, golf, tennis, nature, safety, and community
Lifestyle
Why Key Biscayne
Why Buy
in Key Biscayne
Exclusive Island Living
A private, safe, and serene environment only accessible through one scenic causeway — unmatched in all of Miami.
World-Class Beaches & Natural Parks
Home to Crandon Park and Bill Baggs Cape Florida State Park — two of the best natural beaches in Florida.
Waterfront & Boating Lifestyle
Key Biscayne offers deep-water canals, private docks, and direct access to Biscayne Bay and the Atlantic Ocean.
Top Schools
Excellent public and private schools attract high-end families from around the world.
High Appreciation & Limited Inventory
Island geography restricts new development — driving long-term price stability and consistent appreciation.
Luxury & Privacy
Exclusive communities, 24/7 security, and a quiet, family-driven environment unlike anywhere else in Miami.
Walkable Island Village
Restaurants, cafés, boutiques, grocery stores, and parks all within minutes of every residence.
Property Types
Types of Luxury Properties
in Key Biscayne
Waterfront Estates
The most coveted homes on the island — private docks, ocean/bay access, and unmatched privacy.
Luxury Single-Family Homes
Mediterranean, contemporary, and tropical modern architecture on quiet residential streets.
Oceanfront Condos
Direct beach access, resort-style amenities, and panoramic ocean views.
Boutique Luxury Residences
Low-density, private buildings catering to high-end buyers seeking exclusivity.
Gated Communities
Family-centric neighborhoods with security, privacy, and community amenities.
Neighborhoods
Micro-Areas &
Luxury Neighborhoods
Mashta Island
One of Key Biscayne's most prestigious enclaves — waterfront mega-estates with wide bay views.
Holiday Colony
Beachside neighborhood steps from the ocean — known for luxury single-family homes.
Grand Bay Estates & Towers
A gated community offering single-family homes and connected luxury residences with resort amenities.
Oceana Key Biscayne
Ultra-luxury oceanfront residential complex with modern architecture and premier services.
The Ocean Club
A private, resort-style community offering condos, villas, pools, tennis, dining, and exclusive amenities.
Key Colony
A collection of luxury residences with ocean access, gardens, and lifestyle-focused amenities.
Cape Florida (Waterfront Estates)
Premier waterfront properties with direct boat access and sweeping bay views.
Top Buildings
Top Luxury Buildings
in Key Biscayne
Oceana Key Biscayne
Modern luxury, direct oceanfront, private residences, and world-class amenities.
The Ocean Club
Multiple luxury towers, villas, club services, tennis center, restaurants, and family-focused amenities.
Grand Bay Towers
Prestigious beachfront living with expansive residences and full-service luxury.
Key Colony
Iconic Key Biscayne community with four buildings — Botanica, Emerald Bay, Oceansound, Tidemark — offering diverse layouts and amenities.
Casa del Mar
Direct beachfront tower known for wide ocean views and spacious floor plans.
Commodore Club
A collection of classic, well-located oceanfront buildings steps from the beach.
Lifestyle
Key Biscayne
Lifestyle
Key Biscayne offers one of the most desirable island lifestyles in South Florida:
White-sand beaches
Marinas & boating access
Golf & tennis clubs
Family-friendly parks
Protected natural reserves
Walkable village center
Restaurants, cafés & boutiques
Highly active outdoor lifestyle
Ultra-safe residential environment
Exclusive community events
Whether as a primary residence, a family home, or a vacation retreat, Key Biscayne offers quiet luxury paired with world-class natural surroundings.
Market Intelligence
Market Insights
2026
Waterfront estates continue to reach record-breaking sale prices.
Ultra-luxury condos see strong domestic and international demand.
Families relocating from NY, CA, and abroad drive premium home sales.
Low inventory boosts long-term value retention.
New modern homes are highly sought after by affluent buyers.
Seasonal rental demand remains extremely strong.
Key Biscayne remains one of Miami's most stable, exclusive, and high-demand luxury markets.
FAQ
Frequently Asked Questions
About Key Biscayne Real Estate
Luxury single-family homes in Key Biscayne range from $3.5M to $8M. Waterfront estates with direct bay or ocean access range from $15M to $50M+. Oceanfront and bayfront condos span $1.5M to $7M+. Price per square foot in the luxury tier runs $1,200 to $3,000+.
Work With Julian
Key Biscayne Requires
a Specialist
Julian Acosta has represented buyers and sellers across Key Biscayne for 19+ years — from Mashta Island waterfront estates to oceanfront condos at Oceana and The Ocean Club. With deep island relationships and off-market access, he provides intelligence most agents cannot match.
19+
Years Experience
$500M+
In Transactions
Top
Compass Agent Miami