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Key Biscayne For Sale SINGLE FAMILY RESIDENCE PRICE REDUCED

121 Knollwood Drive, Key Biscayne FL 33149

121 Knollwood Drive, Key Biscayne FL 33149

$13,250,000 ≈ ₿199.83

MLS A11936017 · 201 days on market

5

Beds

4.5

Baths

4,924

SQUARE FEET

Single Family Residence

Type

1972

Built

Listing courtesy of

One Sotheby's International Realty

Brigitte Nachtigall

MLS® #A11936017

Listing information last updated March 17, 2026

MiamiCityRealty.com is an agent's best friend. We proudly co-broke and partner with One Sotheby's International Realty — and every agent and broker in Miami — to get the deal done.

Overview

This single family residence in Key Biscayne has 5 bedrooms and 4.5 bathrooms across 4,924 square feet, and is listed for sale at $13,250,000 (about $2,691 per square foot). Built in 1972.

Designed for those who value privacy, space, and a true connection to the water, this exceptional waterfront residence offers a rare boater’s retreat and a warm, inviting setting for family living. Tucked away on a quiet street and set on an expansive nearly 14,000-square-foot lot, the home impresses from the moment you arrive with its generous front yard and gated entry, offering both presence and privacy. Inside, a bright two-story layout unfolds with an open, airy feel, thoughtfully designed for both everyday comfort entertaining. The residence features five bedrooms, four full bathrooms, plus a cabana bath, all flowing seamlessly enhanced by abundant natural light and tranquil water views. Renovated in 2019, the home includes impact windows and doors, a beautifully updated kitchen and appliances, lighting throughout, gas generator, and a pool heater and chiller for year-round enjoyment. The outdoor living experience is truly exceptional…enjoy direct water access with a private dock, boat lift, and two dry jet-ski docks, allowing you to step straight from your backyard to open water and fully embrace the waterfront lifestyle. A detached, enclosed two-car garage adds versatility, while the gated property offers abundant parking for up to six vehicles, a rare and valuable amenity in Key Biscayne. Homes of this caliber which offer privacy, boating infrastructure, generous land, and modern upgrades are increasingly rare and best appreciated in person.

Listing history

Price reduced

↓ $600,000 from $13,850,000 · Feb 26, 2026 · MIAMI MLS

$13,250,000

Listed for sale

Jan 2, 2026 · MIAMI MLS

$13,850,000

Days on market

as of today

201 days

Building & financials

FROM MIAMI MLS

The carrying-cost and structural facts that close or kill a Miami deal — straight from the listing feed.

Annual property tax (2024)

$65,834

Association type

None

Waterfront

Ocean Access, Canal Front, No Fixed Bridges

Pets

Allowed (verify restrictions)

Dues, taxes, and association data per MIAMI MLS and public records; flood zone from FEMA NFHL. Verify with the HOA, county, and your insurer during due diligence.

Property details

MLS #A11936017
Price$13,250,000
Size4,924 Square Feet
Bedrooms5
Bathrooms4.5
Garage2
Year built1972
TypeSingle Family Residence
StatusFor Sale
Price / Square Feet$2,691

Features & amenities

Dishwasher
Disposal
Dryer
Electric Range
Electric Water Heater
Family Room
First Floor Entry
Has a View
Has Cooling System
Has Garage
Has Heating System
Has Waterfront
Lighting
Microwave
Open Balcony
Open Parking
Refrigerator
Trash Compactor
Utility Room/Laundry
Walk-In Closet(s)
Wall Oven
Washer

Location

121 Knollwood Drive, Key Biscayne FL 33149

Estimate your payment

$

Est. monthly payment

per month

Principal & interest
Property tax (est.)
Down (20%)
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Estimate only — not a Loan Estimate, pre-approval, or commitment. Taxes, insurance & HOA vary. Confirm with a licensed lender.

Questions, answered

How many bedrooms does this property have?

This Key Biscayne single family residence has 5 bedrooms.

How many bathrooms does this property have?

This Key Biscayne single family residence has 4.5 bathrooms.

What is the square footage?

This Key Biscayne single family residence offers 4,924 square feet of living space.

When was this property built?

This Key Biscayne single family residence was built in 1972.

How many parking spaces are included?

This Key Biscayne single family residence includes 2 parking spaces.

What is the view from this property?

The view from this Key Biscayne single family residence is Canal.

Are pets allowed?

Pet policy for this Key Biscayne single family residence: Restrictions Or Possible Restrictions.

What are the annual property taxes?

Annual property taxes for this Key Biscayne single family residence are approximately $65,834, per the latest tax record.

How long has this property been on the market?

This Key Biscayne single family residence has been on the market for 155 days.

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$13,250,000

121 Knollwood Drive, Key Biscayne FL 33149

Key Biscayne · 5 bd · 4.5 ba · 4,924 Square Feet

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Listing data © MIAMI MLS · IDX information deemed reliable but not guaranteed · 201 days on market.

We do not advertise a “free” buyer’s agent; buyer-representation compensation is disclosed in writing. Bitcoin pricing is indicative and updates with the market — not financial, tax, or legal advice. Buyer to independently verify all measurements, assessments, and flood & insurance facts.

$13,250,000

5 bd · 4.5 ba · 4,924 Square Feet

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