FL Real Estate & Homes • (561) 835-5400Mortgage • Title • List & Sell for 1% • Get Home Value
Key Biscayne, FL

Luxury Homes in Key Biscayne

Luxury and high-end residential communities in Key Biscayne, Florida. Browse active MLS listings and communities with List & Sell FL.

17
Communities
Key Biscayne
City
1%
Listing Fee
Active Listings

111 active listings

2 bedroom home for sale at 251 Crandon, Key Biscayne, FL 33149 — $1,695,000
$1,695,000
Active
4d
$1,695,000
251 Crandon #304
Key Biscayne, FL 33149
2 bd2 ba1,532 sqft
Key Colony No 2 Condo
2 bedroom home for sale at 251 Crandon, Key Biscayne, FL 33149 — $1,495,000
$1,495,000
Active
4d
$1,495,000
251 Crandon #525
Key Biscayne, FL 33149
2 bd2 ba1,532 sqft
Key Colony No 2 Condo
6 bedroom home for sale at 960 Mariner, Key Biscayne, FL 33149 — $19,450,000
$19,450,000
Active
$19,450,000
960 Mariner
Key Biscayne, FL 33149
6 bd8.5 ba7,742 sqft
Cape Fla Sub Sec 2
6 bedroom home for sale at 1080 Mariner, Key Biscayne, FL 33149 — $19,750,000
$19,750,000
Active
$19,750,000
1080 Mariner
Key Biscayne, FL 33149
6 bd6.5 ba6,468 sqft
Cape Fla Sub Sec 2
4 bedroom home for sale at 445 Grand Bay, Key Biscayne, FL 33149 — $12,990,000
$12,990,000
Active
$12,990,000
445 Grand Bay #PH-2A
Key Biscayne, FL 33149
4 bd5.5 ba7,400 sqft
Grand Bay Residences Cond
2 bedroom home for sale at 251 Crandon, Key Biscayne, FL 33149 — $2,900,000
$2,900,000
Active
$2,900,000
251 Crandon #806
Key Biscayne, FL 33149
2 bd2.5 ba2,220 sqft
Key Colony No 2 Condo
7 bedroom home for sale at 550 Harbor, Key Biscayne, FL 33149 — $19,450,000
$19,450,000
Active
16d
$19,450,000
550 Harbor
Key Biscayne, FL 33149
7 bd7.5 ba6,497 sqft
Hurricane Cove
2 bedroom home for sale at 201 Enid, Key Biscayne, FL 33149 — $1,690,000
$1,690,000
Active
15d
$1,690,000
201 Enid #31
Key Biscayne, FL 33149
2 bd2.5 ba1,460 sqft
Biscayne Key Estates Sub
3 bedroom home for sale at 765 Crandon, Key Biscayne, FL 33149 — $2,950,000
$2,950,000
Active
8d
$2,950,000
765 Crandon #311
Key Biscayne, FL 33149
3 bd3 ba2,602 sqft
Lake Tower Condo
3 bedroom home for sale at 177 Ocean Lane, Key Biscayne, FL 33149 — $4,450,000
$4,450,000
Active
9d
$4,450,000
177 Ocean Lane #501
Key Biscayne, FL 33149
3 bd2.5 ba1,930 sqft
Commodore Club East
6 bedroom home for sale at 360 Harbor, Key Biscayne, FL 33149 — $9,950,000
$9,950,000
Active
21d
$9,950,000
360 Harbor
Key Biscayne, FL 33149
6 bd5.5 ba4,341 sqft
Biscayne Key Estates
2 bedroom home for sale at 177 Ocean Lane, Key Biscayne, FL 33149 — $1,410,000
$1,410,000
Active
13d
$1,410,000
177 Ocean Lane #405
Key Biscayne, FL 33149
2 bd2 ba1,260 sqft
Key Biscaynes Commodore C
3 bedroom home for sale at 881 Ocean, Key Biscayne, FL 33149 — $3,500,000
$3,500,000
Active
11d
$3,500,000
881 Ocean #13H
Key Biscayne, FL 33149
3 bd3 ba3,120 sqft
Casa Del Mar Condo
2 bedroom home for sale at 881 Ocean, Key Biscayne, FL 33149 — $2,400,000
$2,400,000
Active
17d
$2,400,000
881 Ocean #23C
Key Biscayne, FL 33149
2 bd2 ba1,875 sqft
Casa Del Mar Condo
6 bedroom home for sale at 315 Cypress, Key Biscayne, FL 33149 — $7,599,000
$7,599,000
Active
14d
$7,599,000
315 Cypress
Key Biscayne, FL 33149
6 bd6.5 ba3,980 sqft
Tropical Isle Homes Sub 4
1 bedroom home for sale at 201 Crandon, Key Biscayne, FL 33149 — $1,075,000
$1,075,000
Active
18d
$1,075,000
201 Crandon #605
Key Biscayne, FL 33149
1 bd2 ba1,059 sqft
Key Colony No 1
3 bedroom home for sale at 765 Crandon, Key Biscayne, FL 33149 — $2,850,000
$2,850,000
Active
21d
$2,850,000
765 Crandon #310
Key Biscayne, FL 33149
3 bd3 ba2,602 sqft
Lake Tower Condo
2 bedroom home for sale at 151 Crandon, Key Biscayne, FL 33149 — $1,890,000
$1,890,000
Active
22d
$1,890,000
151 Crandon #540
Key Biscayne, FL 33149
2 bd2 ba1,532 sqft
The Emeraldbay @ Key Colo
7 bedroom home for sale at 110 Reef, Key Biscayne, FL 33149 — $11,750,000
$11,750,000
Active
25d
$11,750,000
110 Reef #10
Key Biscayne, FL 33149
7 bd5.5 ba5,074 sqft
Oceana Key Biscayne Condo
2 bedroom home for sale at 881 Ocean, Key Biscayne, FL 33149 — $2,470,000
$2,470,000
Active
32d
$2,470,000
881 Ocean #20E
Key Biscayne, FL 33149
2 bd2 ba1,875 sqft
Casa Del Mar Condo
2 bedroom home for sale at 1121 Crandon, Key Biscayne, FL 33149 — $1,225,000
$1,225,000
Active
32d
$1,225,000
1121 Crandon #D903
Key Biscayne, FL 33149
2 bd2 ba1,409 sqft
Towers Of Key Biscayne Co
3 bedroom home for sale at 781 Crandon, Key Biscayne, FL 33149 — $3,975,000
$3,975,000
Active
36d
$3,975,000
781 Crandon #401
Key Biscayne, FL 33149
3 bd4.5 ba3,093 sqft
Club Tower Three Condo
4 bedroom home for sale at 799 Crandon, Key Biscayne, FL 33149 — $5,490,000
$5,490,000
Active
38d
$5,490,000
799 Crandon #202
Key Biscayne, FL 33149
4 bd5.5 ba3,581 sqft
Ocean Tower One Condo
4 bedroom home for sale at 430 Grand Bay, Key Biscayne, FL 33149 — $3,900,000
$3,900,000
Active
40d
$3,900,000
430 Grand Bay #606
Key Biscayne, FL 33149
4 bd4 ba2,930 sqft
Grand Bay Tower Condo

Information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data deemed reliable but not guaranteed. © 2026 Beaches MLS, Inc.

About Luxury Homes in Key Biscayne

Luxury Homes in Key Biscayne, FL

Luxury Homes are a distinct slice of the Key Biscayne, County market. We track 17 matching communities in Key Biscayne, alongside the active MLS listings below. Luxury homes in Key Biscayne span waterfront estates, golf and country club residences, and gated enclaves in County. What sets this segment apart is not only price but scarcity: a limited number of homes, prime locations, and finishes that buyers actively compete for. A meaningful share of the best inventory trades quietly, off-market, so the homes on a public search are not always the full picture.

Representation matters at this level. An agent who knows the local market can surface private listings, arrange showings, and guide the due diligence high-value homes require, from surveys and elevation certificates to seawall, dock, and club-membership review. Financing is available even on eight-figure homes through jumbo and portfolio lenders, though many purchases close in cash. Either way, having proof of funds or a lender letter ready keeps you competitive, because the strongest homes draw more than one qualified buyer.

Luxury Homes communities in Key Biscayne include Ocean Tower Two, Club Tower One, Commodore Club South Cond, Key Colony, Grand Bay Residences Cond, and Cape Fla Sub Sec 2, among others. Each has its own pricing, HOA structure, and character, and we can walk you through how they compare.

Frequently Asked Questions

Luxury Homes in Key Biscayne FAQ

How much do luxury homes in Key Biscayne cost?+
The luxury segment generally starts around $1M and runs well into the eight figures, depending on location, water or golf frontage, lot, and finish level. Ask us for current active listings and recent closed sales.
Are there off-market luxury homes in Key Biscayne?+
Often, yes. A share of high-end inventory sells privately without ever reaching the public MLS. We track these through the local agent network, so ask what is available beyond the public listings.
Do luxury communities in Key Biscayne require a club membership?+
Many golf and country club communities pair the home purchase with a separate club or equity membership. Terms and fees vary and change over time, so confirm the current structure before you buy.
What are the carrying costs of a luxury home in County?+
Beyond the purchase price, budget for property taxes, homeowners plus often flood and windstorm insurance, and any HOA or club dues. On high-value Florida homes these add up, so factor them into your monthly cost.
Keep exploring
Call UsSearchGet Started