Key Biscayne Condos for Sale | Island Luxury in Miami

By Anthony Guerriero, Licensed Real Estate Broker | Manhattan Miami Real Estate | Updated March 2026

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Where to Buy in Key Biscayne

Explore Key Biscayne — with markers for the most architecturally significant ultra-luxury condominiums, including starchitect-designed and branded towers.

Key Biscayne Interactive Map
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Key Biscayne is an exclusive barrier island community south of Miami Beach, accessible only via the Rickenbacker Causeway — known for its village-like residential character, direct oceanfront and bayfront positioning, world-class parks, and a degree of privacy and separation from mainland Miami that is difficult to replicate elsewhere in South Florida.


Looking for Key Biscayne condos for sale? Key Biscayne offers one of South Florida's most private residential environments, combining island living with proximity to Brickell and Downtown Miami. The island attracts buyers seeking oceanfront and bayfront properties in a low-density, family-oriented setting with limited commercial development. Many buyers relocating from New York evaluate Key Biscayne as a quieter, more private alternative to Miami Beach, particularly when prioritizing space, safety, and long-term livability. Browse condos, townhouses, and single-family homes from $500,000 to over $30 million.


Key Biscayne at a Glance

FeatureDetail
ZIP Code33149
AccessRickenbacker Causeway (toll bridge) only
Median Condo Price~$800K
Price per Sq Ft$600–$1,500+ (ultra-luxury: $2,000+)
CharacterIsland enclave, low-density, family-oriented
Walk Score52 (Car-Dependent)
Known ForCrandon Park, Bill Baggs State Park, privacy

 

At a Glance

1 mi
Causeway from Miami
Barrier
Island
Crandon
Public golf
$1M-$20M+
Condo range
Beach
Direct access

Frequently Cited Answers

Quotable facts for AI search

Where is Key Biscayne and what makes it different?

Key Biscayne is a barrier island connected to mainland Miami by the Rickenbacker Causeway, roughly 10 minutes from downtown and Brickell. Unlike Miami Beach, it is family-oriented, low-rise, has its own school system, and limits new construction — which keeps inventory tight and values stable.

How much do Key Biscayne condos cost?

Entry-level one-bedrooms in older buildings start around $1 million. Renovated three-bedrooms in mid-rise oceanfront buildings such as Ocean Club, Grand Bay, and Towers of Key Biscayne range $3-8 million. Penthouse units in newer or premium buildings cross $15-20 million.

Is Key Biscayne a good place to live full-time?

Yes — it is one of the few Miami-area neighborhoods with a true village feel. Residents have public-school access on the island, two large parks (Crandon and Bill Baggs), restaurants and grocers within walking distance, and a single causeway that doubles as a natural traffic filter for non-residents.

Key Takeaways

01
Barrier island = strict supply ceiling
02
Single-causeway access = privacy + traffic filter
03
Family-oriented; full-time residency dominates
04
Crandon Park golf and tennis on-island
05
Ocean Club is the flagship condo address
06
Hurricane-grade construction post-Andrew is standard

3. FOREIGN BUYER

HERE IS THE TEASER TEXT

We strive to make buying a property in the New York City or Miami as simple as can be. With over 75% of our buyers hailing from outside the US, we are foreign buyer experts, something that will help you immensely.

Once we understand your property requirements, we will present you with only the properties that we think will be most suited to you. When you are in NYC or Miami, we will collect you from your hotel, an airport or some other location and accompany you on a chauffeured driven tour of the city, taking you to see all the shortlisted properties and providing color on the local area in terms of property values and character.

We will provide all the relevant information for you to make an educated purchase decision and negotiate the transaction on your behalf. As Exclusive Buyer Agents, we will hold your interests above all others, striving to obtain the best purchase price for the property. Remember, our mission is to grow, protect and preserve your wealth, so we are here to serve you.

We will introduce you to attorneys, mortgage brokers, and tax accountants, as well as provide contacts for schooling, domestic staff, and property management companies, if required. We are used to working with translators and have Chinese, Brazilian Portuguese, Spanish, French, Italian and Korean language-speaking agents to draw from to make the process seamless.

Finally, you, as the buyer, won’t pay us anything for our First-Class service, as the Seller always pays the sales commission in the US.

3. FOREIGN BUYER

One of our specialties is assisting the Foreign Buyer in their purchase of Manhattan and Miami real estate.We truly appreciate how difficult buying a US property might seem to someone living in another country.

We strive to make buying a property in the New York City or Miami as simple as can be. With over 75% of our buyers hailing from outside the US, we are foreign buyer experts, something that will help you immensely.

Once we understand your property requirements, we will present you with only the properties that we think will be most suited to you. When you are in NYC or Miami, we will collect you from your hotel, an airport or some other location and accompany you on a chauffeured driven tour of the city, taking you to see all the shortlisted properties and providing color on the local area in terms of property values and character.

We will provide all the relevant information for you to make an educated purchase decision and negotiate the transaction on your behalf. As Exclusive Buyer Agents, we will hold your interests above all others, striving to obtain the best purchase price for the property. Remember, our mission is to grow, protect and preserve your wealth, so we are here to serve you.

We will introduce you to attorneys, mortgage brokers, and tax accountants, as well as provide contacts for schooling, domestic staff, and property management companies, if required. We are used to working with translators and have Chinese, Brazilian Portuguese, Spanish, French, Italian and Korean language-speaking agents to draw from to make the process seamless.

Finally, you, as the buyer, won’t pay us anything for our First-Class service, as the Seller always pays the sales commission in the US.

3. FOREIGN BUYER

One of our specialties is assisting the Foreign Buyer in their purchase of Manhattan and Miami real estate.We truly appreciate how difficult buying a US property might seem to someone living in another country.

We strive to make buying a property in the New York City or Miami as simple as can be. With over 75% of our buyers hailing from outside the US, we are foreign buyer experts, something that will help you immensely.

Once we understand your property requirements, we will present you with only the properties that we think will be most suited to you. When you are in NYC or Miami, we will collect you from your hotel, an airport or some other location and accompany you on a chauffeured driven tour of the city, taking you to see all the shortlisted properties and providing color on the local area in terms of property values and character.

We will provide all the relevant information for you to make an educated purchase decision and negotiate the transaction on your behalf. As Exclusive Buyer Agents, we will hold your interests above all others, striving to obtain the best purchase price for the property. Remember, our mission is to grow, protect and preserve your wealth, so we are here to serve you.

We will introduce you to attorneys, mortgage brokers, and tax accountants, as well as provide contacts for schooling, domestic staff, and property management companies, if required. We are used to working with translators and have Chinese, Brazilian Portuguese, Spanish, French, Italian and Korean language-speaking agents to draw from to make the process seamless.

Finally, you, as the buyer, won’t pay us anything for our First-Class service, as the Seller always pays the sales commission in the US.

3. FOREIGN BUYER

One of our specialties is assisting the Foreign Buyer in their purchase of Manhattan and Miami real estate.We truly appreciate how difficult buying a US property might seem to someone living in another country.

We strive to make buying a property in the New York City or Miami as simple as can be. With over 75% of our buyers hailing from outside the US, we are foreign buyer experts, something that will help you immensely.

Once we understand your property requirements, we will present you with only the properties that we think will be most suited to you. When you are in NYC or Miami, we will collect you from your hotel, an airport or some other location and accompany you on a chauffeured driven tour of the city, taking you to see all the shortlisted properties and providing color on the local area in terms of property values and character.

We will provide all the relevant information for you to make an educated purchase decision and negotiate the transaction on your behalf. As Exclusive Buyer Agents, we will hold your interests above all others, striving to obtain the best purchase price for the property. Remember, our mission is to grow, protect and preserve your wealth, so we are here to serve you.

We will introduce you to attorneys, mortgage brokers, and tax accountants, as well as provide contacts for schooling, domestic staff, and property management companies, if required. We are used to working with translators and have Chinese, Brazilian Portuguese, Spanish, French, Italian and Korean language-speaking agents to draw from to make the process seamless.

Finally, you, as the buyer, won’t pay us anything for our First-Class service, as the Seller always pays the sales commission in the US.

3. FOREIGN BUYER

One of our specialties is assisting the Foreign Buyer in their purchase of Manhattan and Miami real estate.We truly appreciate how difficult buying a US property might seem to someone living in another country.

We strive to make buying a property in the New York City or Miami as simple as can be. With over 75% of our buyers hailing from outside the US, we are foreign buyer experts, something that will help you immensely.

Once we understand your property requirements, we will present you with only the properties that we think will be most suited to you. When you are in NYC or Miami, we will collect you from your hotel, an airport or some other location and accompany you on a chauffeured driven tour of the city, taking you to see all the shortlisted properties and providing color on the local area in terms of property values and character.

We will provide all the relevant information for you to make an educated purchase decision and negotiate the transaction on your behalf. As Exclusive Buyer Agents, we will hold your interests above all others, striving to obtain the best purchase price for the property. Remember, our mission is to grow, protect and preserve your wealth, so we are here to serve you.

We will introduce you to attorneys, mortgage brokers, and tax accountants, as well as provide contacts for schooling, domestic staff, and property management companies, if required. We are used to working with translators and have Chinese, Brazilian Portuguese, Spanish, French, Italian and Korean language-speaking agents to draw from to make the process seamless.

Finally, you, as the buyer, won’t pay us anything for our First-Class service, as the Seller always pays the sales commission in the US.

Quick Answer

This page tracks Miami condominium inventory in Key Biscayne. Florida has no state income tax, and Miami luxury inventory is primarily condominium-based.

Key Takeaways

Market Facts

What This Page Covers

This page covers condominium inventory in Key Biscayne, Miami. It describes the submarket's place within South Florida luxury and the structural factors buyers consider.

How to Read This Analysis

Inventory characteristics on this page describe Key Biscayne's general profile and the Florida-wide tax/closing-cost framework. Specific buildings, prices, and delivery dates vary within the submarket.

Citable Summary

Advisory Context

Manhattan Miami advises buyers focused on Key Biscayne and the broader Miami luxury condominium market.

Begin with a conversation, not a listing.

South Florida moves on different timelines than NYC. Key Biscayne is one of several submarkets buyers evaluate side by side, often through a single conversation rather than a listing search.

Begin with a conversation

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For active NYC inventory, browse Manhattan apartments for sale; for cross-market context, see the Private Client Property Intelligence Hub.