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Key Biscayne Homes for Sale under $5M

149 listings

Live MLS inventory in Key Biscayne, updated continuously.

425 Harbor Dr, Key Biscayne, FL 33149
$7,450,000
7 bd · 9 ba · 4,565 sqft
425 Harbor Dr, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 3
685 Harbor Ln, Key Biscayne, FL 33149
$6,950,000
5 bd · 6 ba · 5,421 sqft
685 Harbor Ln, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
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
110 Hampton Ln, Key Biscayne, FL 33149
$6,900,000
6 bd · 7 ba · 3,550 sqft
110 Hampton Ln, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 4
785 Crandon Blvd # 205/305, Key Biscayne, FL 33149
$6,900,000New
4 bd · 5 ba · 4,200 sqft
785 Crandon Blvd # 205/305, Key Biscayne, FL 33149
Ocean Club
330 Gulf Rd, Key Biscayne, FL 33149
$6,490,000
5 bd · 6 ba · 3,202 sqft
330 Gulf Rd, Key Biscayne, FL 33149
HOLIDAY COLONY
571 S Mashta Dr, Key Biscayne, FL 33149
$6,350,000New
4 bd · 3 ba · 2,761 sqft
571 S Mashta Dr, Key Biscayne, FL 33149
MASHTA ISLAND A REPLAT OF
561 Warren Ln, Key Biscayne, FL 33149
$5,995,000
5 bd · 6 ba · 3,762 sqft
561 Warren Ln, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB
501 Bay Lane, Key Biscayne, FL 33149
$5,990,000
5 bd · 5 ba · 4,759 sqft
501 Bay Lane, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 3
335 W Enid Dr, Key Biscayne, FL 33149
$5,785,000
5 bd · 6 ba · 3,495 sqft
335 W Enid Dr, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
755 Curtiswood Dr, Key Biscayne, FL 33149
$5,600,000
5 bd · 5 ba · 3,197 sqft
755 Curtiswood Dr, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
690 Warren Ln, Key Biscayne, FL 33149
$5,478,000
4 bd · 4 ba · 3,549 sqft
690 Warren Ln, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
785 Crandon Blvd # 705/805, Key Biscayne, FL 33149
$5,450,000
4 bd · 5 ba · 4,200 sqft
785 Crandon Blvd # 705/805, Key Biscayne, FL 33149
The Ocean Club
650 Curtiswood Dr, Key Biscayne, FL 33149
$5,199,000
6 bd · 5 ba · 3,356 sqft
650 Curtiswood Dr, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
797 Glenridge Rd, Key Biscayne, FL 33149
$5,100,000
5 bd · 5 ba · 3,535 sqft
797 Glenridge Rd, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
24 Grand Bay Estates Circle, Key Biscayne, FL 33149
$4,899,000
5 bd · 5.5 ba · 4,220 sqft
24 Grand Bay Estates Circle, Key Biscayne, FL 33149
360 Ocean Dr # 304S, Key Biscayne, FL 33149
$4,800,000
2 bd · 4 ba · 1,823 sqft
360 Ocean Dr # 304S, Key Biscayne, FL 33149
OCEANA
475 Woodcrest Rd, Key Biscayne, FL 33149
$4,500,000New
4 bd · 3 ba · 2,689 sqft
475 Woodcrest Rd, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 1
199 Ocean Lane Dr # 401, Key Biscayne, FL 33149
$4,500,000
4 bd · 4 ba · 2,825 sqft
199 Ocean Lane Dr # 401, Key Biscayne, FL 33149
COMMODORE CLUB SOUTH
Listing
$3,975,000New
5 bd · 5 ba · 3,186 sqft
Ocean Club
691 Ridgewood Rd, Key Biscayne, FL 33149
$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
$3,799,000New
2 bd · 4 ba · 1,727 sqft
350 Ocean Dr # 405N, Key Biscayne, FL 33149
Oceana Key Biscayne
200 Ocean Lane Dr # 501, Key Biscayne, FL 33149
$3,750,000
4 bd · 4 ba · 1,880 sqft
200 Ocean Lane Dr # 501, Key Biscayne, FL 33149
ISLAND HOUSE
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

Homes for Sale under $5M 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.

A ceiling of $5.0M reframes the Key Biscayne search around efficiency — which listings deliver the most location, space or building quality without crossing the line. Markets shaped by ordinance-capped condos on a parkland island always carry mispriced corners: a solid older tower with unfashionable finishes, a townhouse a few blocks off the prestige grid, a listing lingering for reasons that turn out to be fixable. Everything qualifying under the cap is gathered here in one view.

Key Biscayne Market Snapshot

226
Homes sold, last 12 months
$1.6M
Median sale price
60 days
Median time on market

Frequently Asked Questions

How do I spot genuine value under $5.0M in Key Biscayne?

Look for a mismatch between price and fundamentals — a well-run building priced alongside the weak ones, a dated interior on a superior line or lot, long market time that traces to bad photography rather than bad property. We tell you plainly which listings under $5.0M are bargains and which are cheap for reasons that will follow you to resale.

Will my monthly cost stay in budget after buying under $5.0M?

Only if you underwrite everything: association dues, property taxes that reset off your purchase price, insurance keyed to roof age and flood zone, and buyer-side closing costs. We prepare a full carrying-cost worksheet on any listing you shortlist, so the cap you set holds up in month twelve — not just at the closing table.

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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