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Waterfront · Single Family Residence
$19,950,000$3,214 / sqft
120 Knollwood Dr, Key Biscayne FL 33149
Listed
6
Bedrooms
7
Bathrooms
6,208 sqft
Interior
2018
Year built
None
HOA
Single Family Residence
Type
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
- First Floor Entry
- Closet Cabinetry
- Cooking Island
- Entrance Foyer
- Skylight
- Volume Ceilings
- Walk-In Closet(s)
- Atrium
- Family Room
- Great Room
- Storage
- Utility Room/Laundry
Run the numbers
We fill in the price and the building's HOA dues. That leaves tax, insurance and maintenance — they depend on your exemptions, your insurer and the unit, so we don't guess them. Rent starts from what comparable units are asking nearby. Vacancy and the loan terms below start at common defaults; change them.
Median asking rent for 6-bed rentals in Key Biscayne, from 5 active listings; the middle half ask $21,500–$75,000.That is what landlords ask, not what units let for — edit it if you know better.
Our default, not a market figure
From the listing
Depends on assessed value & exemptions
Varies widely by building
Repairs, turnover, management
Cap rate
Cash-on-cash
Monthly cash flow
Net operating income
Enter property tax, insurance, maintenance to see the returns. A cap rate calculated without every cost overstates the deal — often by half — so we don't show a partial one.
Illustration only — not a loan offer, quote, or investment advice. We are not a lender and neither offer nor arrange financing. The loan fields start at 20% down over 30 years at 6.5% (rates as of July 2026); that is a nominal rate for illustration, not an APR, and your actual terms will differ. Cap rate is unlevered; cash-on-cash counts the down payment as invested capital and excludes closing costs.
Listing data from the MIAMI Association of REALTORS® (MIAMIRE) IDX program. Information deemed reliable but not guaranteed. Demo data shown for layout purposes.