Key Biscayne Homes for Sale under $5M

106 listings
24 Grand Bay Estates Circle, Key Biscayne, FL 33149
204 Days on Market

House for Sale

$4,899,000

5 bd · 5.5 ba · 4,220 sqft

24 Grand Bay Estates Circle, Key Biscayne, FL 33149

199 Ocean Lane Dr # 401, Key Biscayne, FL 33149
160 Days on Market

Condo for Sale

$4,500,000

4 bd · 4 ba · 2,825 sqft

199 Ocean Lane Dr # 401, Key Biscayne, FL 33149

COMMODORE CLUB SOUTH

475 Woodcrest Rd, Key Biscayne, FL 33149
Newly Listed

House for Sale

$4,500,000

4 bd · 3 ba · 2,689 sqft

475 Woodcrest Rd, Key Biscayne, FL 33149

TROPICAL ISLE HOMES SUB 1

781 Crandon Blvd # 401, Key Biscayne, FL 33149
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

Listing
74 Days on Market

Condo for Sale

$3,975,000

3 bd · 5 ba · 3,186 sqft

Ocean Club

445 Grand Bay Dr # 104, Key Biscayne, FL 33149
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

430 Grand Bay Dr # 606, Key Biscayne, FL 33149
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

691 Ridgewood Rd, Key Biscayne, FL 33149
401 Days on Market

House for Sale

$3,800,000

4 bd · 4 ba · 3,403 sqft

691 Ridgewood Rd, Key Biscayne, FL 33149

BISCAYNE KEY ESTATES

350 Ocean Dr # 405N, Key Biscayne, FL 33149
Newly Listed

Condo for Sale

$3,799,000

2 bd · 4 ba · 1,727 sqft

350 Ocean Dr # 405N, Key Biscayne, FL 33149

Oceana Key Biscayne

799 Crandon Blvd # 605, Key Biscayne, FL 33149
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

881 Ocean Dr # 10A, Key Biscayne, FL 33149
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

524 Warren Ln, Key Biscayne, FL 33149
143 Days on Market

House for Sale

$3,730,000

5 bd · 4 ba · 2,700 sqft

524 Warren Ln, Key Biscayne, FL 33149

TROPICAL ISLE HOMES SUB 1

360 Ocean Dr # 205S, Key Biscayne, FL 33149
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

200 Ocean Lane Dr # 501, Key Biscayne, FL 33149
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

881 Ocean Dr # 20A, Key Biscayne, FL 33149
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

881 Ocean Dr # 7H, Key Biscayne, FL 33149
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 Ridgewood Rd, Key Biscayne, FL 33149
158 Days on Market

House for Sale

$3,550,000

4 bd · 3 ba · 2,177 sqft

255 Ridgewood Rd, Key Biscayne, FL 33149

TROPICAL ISLE HOMES SUB 4

791 Crandon Blvd # 404, Key Biscayne, FL 33149
34 Days on Market

Condo for Sale

$3,549,000

3 bd · 3 ba · 2,510 sqft

791 Crandon Blvd # 404, Key Biscayne, FL 33149

THE OCEAN CLUB

350 Ocean Dr # 205N, Key Biscayne, FL 33149
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

430 Grand Bay Dr # 708, Key Biscayne, FL 33149
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

791 Crandon Blvd # 302, Key Biscayne, FL 33149
49 Days on Market

Condo for Sale

$3,340,000

3 bd · 3 ba · 2,510 sqft

791 Crandon Blvd # 302, Key Biscayne, FL 33149

OCEAN TOWER TWO CONDO

119 Harbor Dr, Key Biscayne, FL 33149
13 Days on Market

House for Sale

$3,300,000

3 bd · 2 ba · 1,554 sqft

119 Harbor Dr, Key Biscayne, FL 33149

TROPICAL ISLE HOMES SUB 4

548 Fernwood Rd # 548, Key Biscayne, FL 33149
Newly Listed

Townhome for Sale

$3,300,000

4 bd · 3 ba · 2,448 sqft

548 Fernwood Rd # 548, Key Biscayne, FL 33149

N/A

789 Crandon Blvd # 1005, Key Biscayne, FL 33149
291 Days on Market

Condo for Sale

$3,150,000

2 bd · 3 ba · 2,100 sqft

789 Crandon Blvd # 1005, Key Biscayne, FL 33149

The Ocean Club

Talk to a local agent

Looking at Key Biscayne Homes for Sale under $5M?

Tell us what you're after — we'll send matching homes, off-market options and recent sales, and set up private showings.

Matthew Gromadzki, Real Estate Broker
Matthew Gromadzki
Real Estate Broker
(786) 370-8570
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Live MLS inventory in Key Biscayne, updated continuously. Florida Lux Real Estate currently tracks 106 active listings here. MLS inventory updated October 11, 2026.

Homes for Sale under $5M 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.

Setting the ceiling at $5.0M turns Key Biscayne into a value hunt — and the value tends to hide in specific corners: an older building whose fees undersell its address, a property type the market keeps overlooking, a block just off the prime grid. Known for a family island village between two state parks, fifteen minutes from Brickell, Key Biscayne always has an under-the-radar pocket, and this page keeps every listing beneath the cap in one place so none of it slips past you.

Key Biscayne Market Snapshot

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

Frequently Asked Questions

What can I realistically buy in Key Biscayne under $5.0M?

The honest inventory is right here, updated continuously, and the mix shifts month to month. As a rule of thumb condos stretch a capped budget furthest, townhomes buy the most space, and houses under a ceiling trade quickest. We'll tell you candidly which listings are priced low for a reason.

What costs sit beyond the price in Key Biscayne?

Budget association dues on condos and townhomes, insurance that shifts with roof age and flood zone, and buyer closing costs of roughly two to three percent. We build a true monthly-cost sheet for any listing before you offer, so your ceiling still holds after closing.

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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