120 Knollwood Dr

Key Biscayne, FL 33149

$19,950,000

$3,214/ft²

6Beds

6.5Baths

6,208Sq ft

2018Year built

Single-family homeType

About this home

Embodying a true resort lifestyle, this rare Key Biscayne waterfront residence is defined by its extra-long, 134 ft water frontage and its elegant private ipe dock with direct canal-to-ocean access. The contemporary home, extensively rebuilt in 2018, is move-in ready, featuring 6 bedrooms, refined finishes, and tailored wood floors throughout. Outdoor living unfolds effortlessly with a sleek pool and spa and inviting spaces for intimate lounging, open-air dining and entertaining. Minutes from golf, tennis, padel, a protected state park and beaches, and within easy reach of Brickell, Coconut Grove, and Miami Airport. Nothing to add. Everything to enjoy. A MUST SEE.

Features

Waterfront

Property details

Listing

MLS #: A12009875
Status: For sale
Listed on: Apr 30, 2026
Days on market: 102 days
Listing data updated: Jul 31, 2026

Interior

Beds: 6
Baths: 6.5
Living area: 6,208 ft²
Price per ft²: $3,214/ft²

Building & community

Type: Single-family home
Year built: 2018
County: Miami-Dade

Lot & exterior

Lot size: 16,827 ft²
Waterfront: Yes

Days on market, price per ft² and the monthly HOA amount are calculated by this site from the MLS data shown; the association fee is normalized to a monthly figure.

True monthly cost

Mortgage (principal & interest): $100,878
Property taxes (est.): $18,288
Home insurance (est.): $600
Flood insurance (est.): —

Estimated total$119,766*/mo

* Some cost lines aren't available yet for this listing; the total shown is incomplete.

Based on 20% down, a 6.5% rate and a 30-year loan, plus this home's estimated Florida carrying costs. All figures are illustrative estimates — not quotes, not financial or insurance advice.

Sources: flood zone — FEMA National Flood Hazard Layer; mortgage, taxes and insurance figures — this site's own estimates; HOA / CDD — as reported for this listing.

What will this home really cost you?