128 Days on Market
House for Sale
$237,000,000
5 bd · 9 ba · 11,528 sqft
485 W Matheson Dr, Key Biscayne, FL 33149
TROPICAL ISLE HOMES RESUB
Bedrooms
Bathrooms
Key Biscayne Waterfront Homes for Sale
63 listings
13 Days on Market
House for Sale
$27,900,000
8 bd · 9 ba · 9,159 sqft
241 Cape Florida Dr, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 3
14 Days on Market
House for Sale
$19,900,000
5 bd · 4 ba · 3,085 sqft
520 S Mashta Dr, Key Biscayne, FL 33149
MASHTA ISLAND A REPLAT OF
54 Days on Market
Condo for Sale
$18,500,000
5 bd · 6 ba · 4,566 sqft
799 Crandon Blvd # PH-8, Key Biscayne, FL 33149
OCEAN CLUB
73 Days on Market
House for Sale
$18,500,000
4 bd · 4.5 ba · 2,255 sqft
631 N Mashta Drive, Key Biscayne, FL 33149
136 Days on Market
Condo for Sale
$17,900,000
5 bd · 6 ba · 4,764 sqft
350 Ocean Dr # LPH2N, Key Biscayne, FL 33149
OCEANA KEY BISCAYNE
170 Days on Market
House for Sale
$16,800,000
4 bd · 4 ba · 3,620 sqft
640 S Mashta Dr, Key Biscayne, FL 33149
MASHTA ISLAND
Newly Listed
House for Sale
$16,500,000
6 bd · 7 ba · 7,103 sqft
131 Cape Florida Dr, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 3
Newly Listed
Home for Sale
$11,750,000
7 bd · 6 ba · 5,074 sqft
110 Reef Ln # 10, Key Biscayne, FL 33149
OCEANA KEY BISCAYNE
202 Days on Market
Condo for Sale
$11,495,000
4 bd · 6 ba · 3,787 sqft
350 Ocean Dr # 701N, Key Biscayne, FL 33149
Oceana Key Biscayne
162 Days on Market
Condo for Sale
$6,900,000
2 bd · 4 ba · 3,950 sqft
430 Grand Bay Dr # 801, Key Biscayne, FL 33149
Grand Bay
Newly Listed
Condo for Sale
$5,490,000
4 bd · 6 ba · 3,581 sqft
799 Crandon Blvd # 202, Key Biscayne, FL 33149
THE OCEAN CLUB
568 Days on Market
Condo for Sale
$5,450,000
4 bd · 5 ba · 4,200 sqft
785 Crandon Blvd # 705/805, Key Biscayne, FL 33149
The Ocean Club
Newly Listed
Condo for Sale
$3,975,000
3 bd · 5 ba · 3,093 sqft
781 Crandon Blvd # 401, Key Biscayne, FL 33149
OCEAN CLUB
8 Days on Market
Condo for Sale
$3,950,000
4 bd · 5 ba · 3,250 sqft
445 Grand Bay Dr # 104, Key Biscayne, FL 33149
GRAND BAY RESIDENCES COND
Newly Listed
Condo for Sale
$3,900,000
4 bd · 4 ba · 2,930 sqft
430 Grand Bay Dr # 606, Key Biscayne, FL 33149
GRAND BAY TOWER
20 Days on Market
Condo for Sale
$3,750,000
3 bd · 3 ba · 3,120 sqft
881 Ocean Dr # 10A, Key Biscayne, FL 33149
CASA DEL MAR CONDOMINIUM
206 Days on Market
Condo for Sale
$3,750,000
3 bd · 4 ba · 2,510 sqft
799 Crandon Blvd # 605, Key Biscayne, FL 33149
The Ocean Club
437 Days on Market
Condo for Sale
$3,650,000
2 bd · 4 ba · 1,830 sqft
360 Ocean Dr # 205S, Key Biscayne, FL 33149
OCEANA KEY BISCAYNE CONDO
175 Days on Market
Condo for Sale
$3,600,000
3 bd · 3 ba · 3,120 sqft
881 Ocean Dr # 20A, Key Biscayne, FL 33149
CASA DEL MAR
92 Days on Market
Home for Sale
$3,600,000
4 bd · 4 ba · 1,880 sqft
200 Ocean Lane Dr # 501, Key Biscayne, FL 33149
ISLAND HOUSE
28 Days on Market
Condo for Sale
$3,595,000
3 bd · 3 ba · 3,120 sqft
881 Ocean Dr # 7H, Key Biscayne, FL 33149
Casa del Mar
255 Days on Market
Condo for Sale
$3,500,000
2 bd · 3 ba · 1,830 sqft
350 Ocean Dr # 205N, Key Biscayne, FL 33149
Oceana Key Biscayne
72 Days on Market
Condo for Sale
$3,490,000
3 bd · 3 ba · 2,840 sqft
430 Grand Bay Dr # 708, Key Biscayne, FL 33149
GRAND BAY
Talk to a local agent
Looking at Key Biscayne Waterfront Homes?
Tell us what you're after — we'll send matching homes, off-market options and recent sales, and set up private showings.
Live MLS inventory in Key Biscayne, updated continuously. Florida Lux Real Estate currently tracks 63 active listings here. MLS inventory updated October 11, 2026.
Waterfront Homes for Sale in Key Biscayne: What to Know Before You Search
Beyond the Rickenbacker tollgate, tucked between two state parks, Key Biscayne functions as Miami's island village — a K-8 school and streets where children pedal to the beach. Ordinance limits the condo count and no new building has opened since 2014, which means the scarcity driving prices here is entirely real.
Waterfront is a category of its own in Key Biscayne, and it prices in tiers: open water, ocean or gulf frontage, canal and lakefront each carry a different premium. In a market known for a family island village between two state parks, fifteen minutes from Brickell, the buyers who do best know the gap between a water view and real dockage — frontage with deep, unobstructed access commands the strongest numbers and defends them longest.
Key Biscayne Market Snapshot
227
Homes sold, last 12 months
$1.6M
Median sale price
61 days
Median time on market
Frequently Asked Questions
Why does boating access matter so much for Key Biscayne waterfront?
Access without a fixed bridge capping a boat's height is the single biggest driver of waterfront value for anyone who owns a vessel. Homes behind low bridges suit smaller boats and price accordingly. We flag the access profile on every waterfront listing we show you.
Will I need flood insurance on Key Biscayne waterfront property?
Lenders require it inside mapped flood zones, which take in most genuine waterfront. Premiums swing hugely on elevation and construction era — a newer, elevated home often insures for less than an older inland one. We quote it during diligence so you know the carrying cost before you offer.
How do I arrange a showing in Key Biscayne?
Each listing on this page carries an inquiry form that goes straight to our brokerage — or reach us at +1 786-370-8570. We schedule private tours to fit your calendar and run live video walkthroughs for buyers relocating from out of state, with no obligation attached.
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Homes Nearby Key Biscayne: Neighborhoods
- BISCAYNE KEY ESTATES Homes for Sale(9)
- Oceana Key Biscayne Homes for Sale(7)
- The Ocean Club Homes for Sale(7)
- CASA DEL MAR Homes for Sale(6)
- Commodore Club West Homes for Sale(6)
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- COMMODORE CLUB SOUTH COND Homes for Sale(5)
- ISLAND HOUSE APT INC - CO Homes for Sale(5)
- Ocean Club Homes for Sale(4)
- KEY COLONY NO 1 Homes for Sale(4)
- OCEAN TOWER ONE CONDO Homes for Sale(4)
- THE EMERALDBAY @ KEY COLO Homes for Sale(4)
Homes Nearby Key Biscayne: Cities
Homes Nearby Key Biscayne: ZIP Codes
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