430 Grand Bay Dr 801, Key Biscayne, FL 33149 — MLS photo

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430 Grand Bay Dr 801, Key Biscayne, FL 33149

Active · Condominium

$6,900,000

430 Grand Bay Dr 801, Key Biscayne, FL 33149

Beds
2
Baths
4
Living area
3,950 sq ft
$ / sq ft
$1,747/sq ft
Year built
1999
Lot size
—
HOA fee
$4,398
Annual tax
—

About this property

Commanding breathtaking Atlantic vistas from its privileged eighth-floor setting at Grand Bay Tower, this residence is a rare offering on Key Biscayne. Enjoying an unusually private setting with unobstructed ocean views and minimal visibility from neighboring residences, the home offers a level of seclusion seldom found in oceanfront condominium living. Originally a three-bedroom, five-and-a-half-bath home, it has been masterfully reimagined into a grand two-bedroom, three-and-a-half-bath layout, enhancing scale and flow for refined entertaining and effortless daily living. Spanning approximately 3,950 square feet, the living and dining areas, a cozy family room, and a bright kitchen with breakfast area are complemented by three terraces totaling approximately 595 square feet, seamlessly integrated to capture sweeping Atlantic views from every room. Custom woodwork by renowned designer Juan Montoya enriches the interiors, while the serene primary suite offers a secluded sitting room, bespoke closets, and a spa-inspired bath, creating a private sanctuary within this singular home. The sale includes a private guest quarters—an increasingly rare and coveted amenity at Grand Bay—as well as two storage units. Combining exceptional scale, refined finishes, remarkable privacy, unobstructed Atlantic views, and desirable ancillary spaces, this residence represents a unique opportunity within one of Key Biscayne’s most prestigious oceanfront buildings.

Property location

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430 Grand Bay Dr 801, Key Biscayne, FL 33149

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Facts & features

Interior

Bedrooms
2
Bathrooms
4
Living area
3,950 sq ft

Exterior & Structure

Property type
Condominium
Year built
1999

Parking

Not provided in the MLS listing.

HOA, Community & Financials

Association fee
$4,398
County
Miami-Dade
MLS listing ID
A11973615
Listing status
Active

Investment intelligence

Yield & ROI calculator

Pre-filled from this listing's price, HOA and tax record. Adjust anything to see returns update instantly.

Estimated monthly cash flow

-$28,581

Cap rate
0.7%
Net yield
0.7%
Cash-on-cash return
-17.8%
Gross yield
4.5%
Mortgage payment
$32,710/mo
Down payment
$1,725,000
Loan amount
$5,175,000
Annual NOI
$49,542

Estimates only — includes 5% maintenance reserve and ~3% closing costs in cash invested. Verify taxes, HOA and insurance before making an offer.