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© 2026 DockOnly™. All rights reserved.

DockOnly™ and Dock Score™ are trademarks of Blue Mar Real Estate Group Inc.

Blue Mar Real Estate Group

Blue Mar Real Estate Group Inc.

Licensed Florida Real Estate Broker

DBPR License CQ1018554

Listing data provided by Miami Realtors MLS via Bridge Data Output. Information deemed reliable but not guaranteed. Dock Score™ is a DockOnly.com rating and is not provided by or affiliated with the MLS or listing broker. NOAA chart data is public domain and for reference only — not for navigation. Full MLS Compliance

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+20

221 Knollwood Dr

Key Biscayne, FL, 33149

Active

$11,600,000

221 Knollwood Dr

Key Biscayne, FL, 33149

Active

$11,600,000

5

Bedrooms

5

Bathrooms

3,509 sqft

Living Area

1972

Year Built

Mortgage Calculator

Estimate your monthly payment for this waterfront property

20%

$2,320,000 down

%
Principal & Interest$60,190/mo
Property Tax (est. ~1.2%, varies by county)$11,600/mo
Home Insurance (est.)$250/mo
Total Monthly Payment$72,040
Loan Amount: $9,280,000Rate: 6.75%
Get Pre-Qualified

Estimated payments only. Actual rates and terms may vary.

Comparable Sales

$11,600,000Tour the dockSchedule a Showing
Navigation note: Navigation routes show the shortest mapped path to open water. A vessel taller than the binding bridge clearance may still reach open water via a longer alternate route that we don't currently map — verify navigability with a local captain or surveyor before relying on it.

16,000

Lot Size (sqft)

75

Days on Market

Dock Score™

DockOnly
91
Excellent

What shaped this score

✓Ocean Access
✓Dock present
✓No fixed bridges
✓Fits boats up to ~95ft (est.)
Est. waterfront~100 ft

DockOnly.com rating — not provided by the MLS or listing broker.

Dock & Water AccessMLS

Ocean AccessCanal Front

AI Aerial Imagery Detection

Dock DetectedSeawall DetectedDeep Water Indicators~null dock

Detected by AI from open-source aerial mapping imagery and may not reflect current conditions. This information was not provided by the MLS or listing broker. Always verify dock infrastructure with the listing agent.

Canal GeometryDockOnly

Canal Width

County parcel data
106ft at dock
dock106 ft105.9105102

Width sampled every 10 ft from dock · perpendicular measurement

Will it turn around?

Up to 32 ft

Easy
handling

32–43 ft

Fits
with care

43–50 ft

Tight
(back-in)

Boats over 50 ft can't turn around here — back in/out only. Clear channel ≈ 66 ft once boats are docked both sides (FL rules cap each side ~20 ft). Wide-beam yachts need the upper end of each range.

Navigation RouteDockOnly

Data sources: SFWMD AHED waterway polygons · FHWA National Bridge Inventory 2024 · Not provided by the MLS or listing broker.

Description

Rare opportunity to own a 16,000 sq ft waterfront lot on one of Key Biscayne's most coveted cul-de-sacs. Nestled on a quiet, no-traffic street, this lovingly maintained residence offers an exceptional combination of location, lot size, and livability rarely found on the island. With 100 feet of direct water frontage and no fixed bridges to open water, the property is a boater's dream, simply step onto your private dock and cruise around the corner to Boater's Grill, The Cleat for lunch or sunset cocktails or out to the bay! The home's thoughtful positioning creates a generous setback from the water's edge, yielding a beautifully manicured backyard that is a true rarity on Key Biscayne. A mature mango tree anchors the lush landscaping, while the deep lot provides the kind of outdoor space that simply does not exist on most waterfront properties here. Inside, the home is bathed in natural light and flows effortlessly. The open kitchen connects seamlessly to the family room, creating a warm, inviting gathering space at the heart of the home. The ideal floor plan places the primary suite, with dual his-and-her bathrooms, on one wing alongside three additional bedrooms, while a separate guest suite ensures privacy for visitors. Impact windows and doors throughout. Two-car garage. Offered in excellent condition. 221 Knollwood Drive represents the best waterfront value on Key Biscayne. Opportunities of this caliber are exceptionally rare.

Schedule a Showing

See the property and tour the dock. A licensed waterfront specialist will arrange your private showing.

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Location

Key Biscayne, FL, 33149

No price history available for this property.

Listing courtesy of Compass Florida, LLC

Last updated: 6/29/2026

© 2026 Miami Association of REALTORS®, Inc. All rights reserved. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of the Miami Association of REALTORS®. Information is deemed reliable but not guaranteed. All properties are subject to prior sale, change, or withdrawal.

IDX information is provided exclusively for consumers' personal, non-commercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Dock Score™

DockOnly
91
Excellent

What shaped this score

✓Ocean Access
✓Dock present
✓No fixed bridges
✓Fits boats up to ~95ft (est.)
Est. waterfront~100 ft

DockOnly.com rating — not provided by the MLS or listing broker.

FEMA Flood Zone AE
BFE: 9ft

Special Flood Hazard Area

View FEMA Flood Map →
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Nearby Schools

Assigned Public Schools

E

Key Biscayne K-8 Center

Grades PK-8 · Key Biscayne

M

Ponce de Leon MS

Grades 6-8 · Coral Gables

H

Coral Gables Senior High

Grades 9-12 · Coral Gables

Nearby Private Schools

St Christophers - By-The-Sea Montessori School1.0 mi
St Agnes Academy1.0 mi

School data from Miami-Dade County Open Data Hub. Verify attendance zones with the school district.