MIAMI PRIMECondos

Waterfront Homes for Sale Across Key Biscayne

64 listings

Current waterfront homes for sale across Key Biscayne, drawn straight from the MLS feed and ordered largest residence first — open any card for photos, unit details and its spot on the map.

485 W Matheson Dr, Key Biscayne, FL 33149
$237,000,000
5 bd · 9 ba · 11,528 sqft
485 W Matheson Dr, Key Biscayne, FL 33149
TROPICAL ISLE HOMES RESUB
241 Cape Florida Dr, Key Biscayne, FL 33149
$27,900,000
8 bd · 9 ba · 9,159 sqft
241 Cape Florida Dr, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 3
445 Grand Bay Drive # PH-2A, Key Biscayne, FL 33149
$12,990,000New
4 bd · 6 ba · 7,400 sqft
445 Grand Bay Drive # PH-2A, Key Biscayne, FL 33149
GRAND BAY
131 Cape Florida Dr, Key Biscayne, FL 33149
$16,500,000
6 bd · 7 ba · 7,103 sqft
131 Cape Florida Dr, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 3
161 Cape Florida Drive, Key Biscayne, FL 33149
$14,490,000
4 bd · 6 ba · 6,661 sqft
161 Cape Florida Drive, Key Biscayne, FL 33149
CAPE FLORIDA SUB SEC 3
550 Harbor Dr, Key Biscayne, FL 33149
$19,450,000New
7 bd · 8 ba · 6,497 sqft
550 Harbor Dr, Key Biscayne, FL 33149
HURRICANE COVE
120 Knollwood Dr, Key Biscayne, FL 33149
$19,450,000
6 bd · 7 ba · 6,208 sqft
120 Knollwood Dr, Key Biscayne, FL 33149
CAPE FLA SUB SEC 2
110 Reef Ln # 10, Key Biscayne, FL 33149
$11,750,000New
7 bd · 6 ba · 5,074 sqft
110 Reef Ln # 10, Key Biscayne, FL 33149
OCEANA KEY BISCAYNE
350 Ocean Dr # LPH2N, Key Biscayne, FL 33149
$17,900,000
5 bd · 6 ba · 4,764 sqft
350 Ocean Dr # LPH2N, Key Biscayne, FL 33149
OCEANA KEY BISCAYNE
799 Crandon Blvd # PH-8, Key Biscayne, FL 33149
$18,500,000
5 bd · 6 ba · 4,566 sqft
799 Crandon Blvd # PH-8, Key Biscayne, FL 33149
OCEAN CLUB
430 Grand Bay Dr # 801, Key Biscayne, FL 33149
$6,900,000
2 bd · 4 ba · 3,950 sqft
430 Grand Bay Dr # 801, Key Biscayne, FL 33149
Grand Bay
640 S Mashta Dr, Key Biscayne, FL 33149
$16,800,000
4 bd · 4 ba · 3,620 sqft
640 S Mashta Dr, Key Biscayne, FL 33149
MASHTA ISLAND
799 Crandon Blvd # 202, Key Biscayne, FL 33149
$5,490,000New
4 bd · 6 ba · 3,581 sqft
799 Crandon Blvd # 202, Key Biscayne, FL 33149
THE OCEAN CLUB
445 Grand Bay Dr # 104, Key Biscayne, FL 33149
$3,950,000
4 bd · 5 ba · 3,250 sqft
445 Grand Bay Dr # 104, Key Biscayne, FL 33149
GRAND BAY RESIDENCES COND
881 Ocean Dr # 20A, Key Biscayne, FL 33149
$3,600,000
3 bd · 3 ba · 3,120 sqft
881 Ocean Dr # 20A, Key Biscayne, FL 33149
CASA DEL MAR
881 Ocean Dr # 13H, Key Biscayne, FL 33149
$3,500,000
3 bd · 3 ba · 3,120 sqft
881 Ocean Dr # 13H, Key Biscayne, FL 33149
Casa del Mar Condo
781 Crandon Blvd # 401, Key Biscayne, FL 33149
$3,975,000New
3 bd · 5 ba · 3,093 sqft
781 Crandon Blvd # 401, Key Biscayne, FL 33149
OCEAN CLUB
520 S Mashta Dr, Key Biscayne, FL 33149
$18,500,000
5 bd · 4 ba · 3,085 sqft
520 S Mashta Dr, Key Biscayne, FL 33149
MASHTA ISLAND A REPLAT OF
430 Grand Bay Dr # 606, Key Biscayne, FL 33149
$3,900,000
4 bd · 4 ba · 2,930 sqft
430 Grand Bay Dr # 606, Key Biscayne, FL 33149
GRAND BAY TOWER
201 Crandon Blvd # 163, Key Biscayne, FL 33149
$2,865,000
3 bd · 4 ba · 2,604 sqft
201 Crandon Blvd # 163, Key Biscayne, FL 33149
Key Colony
600 Grapetree Dr # 6BS, Key Biscayne, FL 33149
$2,220,000
3 bd · 3 ba · 2,523 sqft
600 Grapetree Dr # 6BS, Key Biscayne, FL 33149
MAR-AZUL CONDO
799 Crandon Blvd # 605, Key Biscayne, FL 33149
$3,750,000
3 bd · 4 ba · 2,510 sqft
799 Crandon Blvd # 605, Key Biscayne, FL 33149
The Ocean Club
631 N Mashta Drive, Key Biscayne, FL 33149
$18,500,000
4 bd · 4.5 ba · 2,255 sqft
631 N Mashta Drive, Key Biscayne, FL 33149
251 Crandon Blvd # 806, Key Biscayne, FL 33149
$2,900,000New
2 bd · 3 ba · 2,220 sqft
251 Crandon Blvd # 806, Key Biscayne, FL 33149
OCEANSOUND

Waterfront Homes for Sale in Key Biscayne: How This Market Works

Cross the Rickenbacker and the market changes character entirely: Key Biscayne caps its condo density by ordinance, no new building has delivered since 2014, and the village between Crandon and Bill Baggs parks runs on bikes, the K-8 school and the beach. Inventory this constrained rewards patient buyers — units in the established oceanfront buildings rarely linger.

Water frontage in Key Biscayne is not one product but several — protected canal, open bay, oceanfront and lakefront each behave differently on price and on daily life. Against a backdrop of ordinance-capped condos on a parkland island, the detail separating a serious premium from the merely scenic is navigability: how large a vessel the dockage accepts, and whether it can reach open water with nothing fixed overhead.

Key Biscayne Market Snapshot

227
Homes sold, last 12 months
$1.6M
Median sale price
63 days
Median time on market

Frequently Asked Questions

How should I evaluate the dockage on a Key Biscayne waterfront listing?

Measure three things: water depth at the seawall at low tide, the length of protected dockage, and the route to open water — any fixed bridge along it caps the boats the property can serve. Those three facts move waterfront value more than the view does, and we verify them on every waterfront property we show.

What does owning on the water add to insurance in Key Biscayne?

Mapped flood zones — which cover essentially all true frontage — bring mandatory flood coverage on financed purchases, and the elevation certificate decides the premium. Counterintuitively, a recently built, elevated waterfront house can cost less to insure than an aging house well back from the water. We gather real quotes during diligence so the carrying cost is a fact, not an estimate, before you offer.

Can I see a Key Biscayne property before committing to anything?

Of course. Use the inquiry form on any listing or call +1 786-370-8570 and we will set up a private showing around your calendar. Buyers who live elsewhere can request a recorded video walkthrough of any residence. Looking carries no commitment — deciding comes later, on your terms.

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