CAPE FLA SUB SEC 2

121 Knollwood Drive, Key Biscayne FL 33149

5 beds · 4.5 baths · 4,924 ft²

For Sale · Active Listing

$13,250,000

4.33%

Est. Payment $70,522/mo

MLS Sheet

5

Bedrooms

4.5

Bathrooms

4,924

Sq. Ft.

1972

Year Built

2

Garage

74

Days on Market

Description

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.

Facts

MLS#
A11936017
Subdivision
CAPE FLA SUB SEC 2
Property Type
Residential
Property Sub Type
Single Family Residence
Year Built
1972
Lot Size
13,947 ft²
Sq. Ft.
4,924 ft²
Sq. Mt.
457 m²
Price per sq. ft.
$2,691/ft²
Price per sq. mt.
$28,993/m²
Stories
Garage
2 spaces
Pool
Days on Market
74 days
Listed
Jan 2, 2026
Last Updated
Mar 17, 2026
Price/Lot Sq.Ft.
$950/ft²

Comparable homes

Same ZIP, similar price + bedrooms.

Market insights for Key Biscayne

Live MLS-derived activity. Forecast is a conservative rule-of-thumb estimate — not a guarantee.

Sellers market

May 2026

100/100
Buyers marketSellers market

77

Median days to sold

+4.5%

1-year price forecast (est.)

Price & tax history

From the live MIAMI MLS feed. Older history requires the ListingHistory resource (not yet enabled).

2/26/2026Price change$13,250,000-4.3%
1/2/2026Listed for sale$13,850,000

History reflects fields present on the live MLS record. Full multi-year history requires the MIAMI ListingHistory resource (not yet enabled).

Location

121 Knollwood Drive, Key Biscayne FL 33149Directions

GreatSchools Summary Ratings

Public + private K-12 schools within 5 miles of this listing.

GreatSchoolsData provided by GreatSchools.org © 2026. All rights reserved.

Estimated Monthly Payment

$81,714/mo

Principal & Interest

$70,522

Property Tax

$11,042

Insurance

$150

HOA

$0

20% ($2,650,000)
7.00%
30 years
1.00% (FL avg ~1.0%)
$0/mo
$150/mo

Estimates only. Actual payment depends on credit, lender, insurance carrier, and FL/Miami-Dade specifics. Contact Rangely for a precise quote.

Rangely Adames

Rangely Adames

Sales Associate | Sunland Group

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