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221 Knollwood Dr, Key Biscayne FL 33149

House For Sale
$11,600,000

BTC: 184.12698413

ETH: 6,643.75715922

-$200K (2026/04/24)
71 days
Waterfront
5 bds
5 ba
3,509 sqft

Overview

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.

Location

Details

Type:
Residential
Parking:
Circular Driveway / Driveway
Year Built:
1972
Lot:
16000 Square Feet
Heating:
Central
Price/sqft:
$3,306
Cooling:
Central Air
HOA:
No Data

Valuation

Our model vs. what's actually selling nearby.
Estimate
$2,500,000
$1.8M – $6.5M
Confidence Low
List vs. estimate
$9.1M above estimate
List $11,600,000 · +364.0%
Our model says this listing is priced above recent comparable activity. Room to negotiate.
Price per sq ft
$3,305
+71.6% vs. city median $1,925
Based on
7 MLS comparables
+ 30 public-records sales within 0.5 mi
Median actual sale: $2.4M
Median of recent comparable listings. Sold comps use closing price, active listings use list price.

Highlights

Annual tax
$21,304
2025
Pool
In Ground
View
Canal, Water
Waterfront
Ocean Access, Canal Front
Garage
2 car garage
Pets
Allowed
All facts and features
  • Flooring

    • Carpet

    • Tile

    Heating

    • Central

    Cooling

    • Central Air

    Appliances

    • Dishwasher

    • Dryer

    • Microwave

    • Electric Range

    • Refrigerator

    • Wall Oven

    • Washer

    Other interior features

    • First Floor Entry

    • Built-in Features

    • Cooking Island

    • Pantry

    • Walk-In Closet(s)

    • Family Room

    • Utility Room/Laundry

    Bedrooms and bathrooms

    • Bedrooms: 5

    • Full bathrooms: 5

  • Parking

    • Circular Driveway

    • Driveway

    Property

    • Exterior Features: Lighting / Fruit Trees

    Lot

    • Lot: 16000 Square Feet

    Other Property Information

    • Parcel Number: 24-52-05-011-0320

    • Zoning: 2000

  • Type and style

    • Property Type: Residential

    • Property Sub Type: Single Family Residence

  • Other financial information

    • Annual tax amount: $21,304

  • Source details

    • MLS ID: A11989667

    Other facts

    • Construction Materials: CBS Construction

    • Fireplace Features: Fireplace

    • Laundry Features: Utility Room/Laundry

    • Lot Features: 1/4 To Less Than 1/2 Acre Lot

    • Patio And Porch Features: Patio

    • Pool Features: In Ground

    • Window Features: Clear Impact Glass / Impact Glass

    • Direction Faces: South

    • Architectural Style: Detached / One Story

    • Waterfront: Yes

    • Fireplace: Yes

    • Garage Spaces: 2

    • Attached Garage: Yes

    • Garage: Yes

    • Living Area: 3509

    • Water Source: Municipal Water

    • Subdivision Name: CAPE FLA SUB SEC 2

Private inquiry
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The multiple listing information is provided by the Miami Association of REALTORS® from a copyrighted compilation of listings. The compilation of listings and each individual listing are ©2026-present Miami Association of REALTORS®. All Rights Reserved. The information provided is for consumers' personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Listing courtesy of: Compass Florida, LLC