MIAMI NEIGHBORHOOD GUIDE

Key Biscayne Condos for Sale

Key Biscayne is Miami’s most exclusive barrier island — a self-contained residential village south of downtown accessible only via the Rickenbacker Causeway, offering oceanfront luxury, village atmosphere, and a finite inventory that commands trophy-tier pricing.

Quick Answer: Key Biscayne is a barrier-island luxury market south of Downtown Miami, known for oceanfront condominiums, bayfront residences, village atmosphere, and limited island inventory. Buyers compare Key Biscayne for privacy, schools, beaches, and access to Crandon Park and Bill Baggs Cape Florida State Park.

By Anthony Guerriero, Manhattan Miami Real Estate | Updated May 2026

Key Biscayne is Miami’s most exclusive barrier island — a self-contained residential village south of downtown Miami accessible only via the Rickenbacker Causeway, offering oceanfront luxury, two state parks, top-rated schools, and a quiet village atmosphere unlike any mainland corridor. Buyers compare Key Biscayne for island privacy, direct ocean beaches, family community character, and a finite inventory that trades at trophy-tier pricing within Miami-Dade County.
KEY BISCAYNE

Key Biscayne Real Estate Map

Key Biscayne occupies a barrier island approximately 5 miles south of downtown Miami, connected via the Rickenbacker Causeway. The island runs north-south with oceanfront condominium towers along the eastern (Atlantic) shore and bayfront residences along the western (Biscayne Bay) side. Crandon Park anchors the northern end; Bill Baggs Cape Florida State Park occupies the southern tip.

Key Biscayne Condos for Sale

Browse current condos for sale in Key Biscayne, including oceanfront residences, resort-style condominium communities, bayfront buildings, and luxury properties near Crandon Park, Bill Baggs Cape Florida State Park, Ocean Drive, and the Key Biscayne Village core.

Key Biscayne at a Glance

LocationExclusive barrier island south of Miami, accessible via Rickenbacker Causeway
ZIP Code33149
Price Range$1M–$30M+
CharacterVillage atmosphere, gated island community, family-oriented
InventoryOceanfront towers, bayfront residences, single-family estates
DistinctionOne of Miami’s most private residential enclaves with two state parks

Market Overview

Key Biscayne operates as a trophy-tier island market with dynamics distinct from mainland Miami:

  • Limited supply — finite island land constrains new development; most inventory is resale from established towers
  • Strong international buyer base, particularly Latin American families and European seasonal residents
  • Village governance and height restrictions prevent over-development, preserving residential character
  • Two state parks and protected shoreline create permanent amenity value that cannot be replicated
  • Rickenbacker Causeway is the sole vehicle access — an infrastructure constraint that simultaneously provides island security
  • Pre-construction opportunities are rare; most acquisition is resale or estate-condition renovation

Notable Buildings & Residences

Key Biscayne’s condominium inventory concentrates along the island’s oceanfront and bayfront corridors. The most sought-after addresses include:

  • Oceana Key Biscayne — Designed by Arquitectonica with interiors by Piero Lissoni; the island’s most contemporary oceanfront tower with flow-through residences and a private beach club
  • Ritz-Carlton Key Biscayne — Hotel-branded residences with full resort service programs, direct beach, and marina access
  • Grand Bay Residences — Bayfront towers on the western shore with sunset views over Biscayne Bay and downtown Miami skyline
  • Ocean Club — Four oceanfront towers along Crandon Boulevard with direct beach access and resort-style amenities
  • Key Colony — Mid-island community with a mix of villas and towers, tennis, marina, and a private island atmosphere

Price Ranges by Property Type

Property TypeTypical Price Range
1-Bedroom / Studio$500K–$1.5M
2-Bedroom$1M–$4M
3-Bedroom$2.5M–$8M
Penthouse / Full-Floor$5M–$20M+
Oceanfront Trophy (Oceana, Ritz-Carlton)$8M–$30M+

Pricing varies by building, floor height, view orientation (ocean vs. bay), and vintage. Oceana Key Biscayne and Ritz-Carlton residences command the highest per-foot premiums on the island.

Island Lifestyle

Key Biscayne functions as a self-contained residential village with a character distinct from mainland Miami:

  • Crandon Park and Bill Baggs Cape Florida State Park bookend the island with protected beaches and nature preserves
  • Village center along Crandon Boulevard with restaurants, boutiques, and a walkable community core
  • Top-rated schools (MAST Academy, Key Biscayne K-8 Center) attract year-round families
  • Rickenbacker Causeway connects to Brickell and downtown Miami in approximately 15 minutes
  • Strong international community — particularly Latin American families seeking privacy, safety, and beach access
  • No high-rise commercial development — height restrictions preserve the village character

Key Biscayne vs Adjacent Markets

Key Biscayne sits as a self-contained island market. Buyers evaluating the island weigh it against several adjacent luxury corridors:

Key Biscayne vs Fisher Island

Fisher Island is ferry-access only with a private club model and higher price floors. Key Biscayne offers similar exclusivity via the Rickenbacker Causeway but with a village center, schools, restaurants, and Crandon Park — a livable year-round community versus a seasonal enclave.

Key Biscayne vs Coconut Grove

Coconut Grove sits on the mainland with bayfront access, walkable village streets, and a broader inventory mix. Key Biscayne commands a premium for true island isolation, direct ocean beaches, and a more uniform ultra-luxury character.

Key Biscayne vs Brickell

Brickell is Miami’s urban financial core with high-rise towers and urban energy. Key Biscayne is the opposite — residential quiet, family village character, no commercial high-rises. Buyers trade Brickell’s walkability for Key Biscayne’s island privacy.

Key Biscayne vs Coral Gables

Coral Gables offers a manicured suburban character with historic architecture and Biltmore grandeur. Key Biscayne offers oceanfront and bayfront exposure that Coral Gables lacks, plus gated island privacy. Coral Gables is more accessible; Key Biscayne is more secluded.

Private Advisory for Key Biscayne Buyers

Manhattan Miami provides private luxury advisory for condominium and single-family purchases on Key Biscayne — building-specific diligence across oceanfront towers, bayfront residences, and village estates. We help buyers evaluate ocean vs. bay orientation, building service programs, renovation potential, and resale positioning rather than only headline price per square foot.

Key Biscayne rewards buyers who understand the island’s inventory constraints. We work most often with international families evaluating Oceana, Ritz-Carlton, and Grand Bay in the context of broader Miami luxury markets and cross-market comparison (Fisher Island, Coconut Grove, Manhattan).

Begin a Private Advisory Conversation →

Nearby Neighborhoods
Fisher IslandFerry-access ultra-luxury enclave. Private club residences.Coconut GroveBayfront village mainland. Walkable, arts, Grove harbour.Coral GablesHistoric suburban luxury. Biltmore, Cocoplum, gated estates.BrickellUrban financial core. High-rise towers, walkable cityscape.South BeachOceanfront barrier island. Art Deco, Continuum, Apogee.
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