For saleActiveListed Apr 10, 2026 · 193 days
$3,730,000

524 Warren Ln, Key Biscayne, FL 33149

5 beds4 baths2,700 sq ft$1,381 per sq ftBuilt 1950

As of , this 5 bedroom, 4 bath house is for sale at $3,730,000 ($1,381 per sq ft). It was listed on .

MLS data updated .

Key facts

Type
House
Year built
1950
Property tax
$22,265 (2025)
Parking
1 garage space
View
Garden
Waterfront
No
Pets
Pets allowed, with restrictions
Cooling
Central Air, Ceiling Fans
Heating
Central
MLS number
A11999112

Listing information

Listing courtesy of Serhant, 646-480-7665, helloflorida@serhant.com

Listing agent: Fabrice Jean Ernandes, info@fabriceernandes.com

BeachesMLS. All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright ©2026 BeachesMLS, Inc.

MIAMI MLS. Listing data from MIAMI MLS (South East Florida Regional MLS). Information is deemed reliable but not guaranteed.

Listing information is provided for consumers' personal, non-commercial use. It may not be used for any purpose other than to identify homes consumers may want to buy or rent.

Listing last changed .

From the listing

Located in one of the most exclusive residential pockets of Key Biscayne, surrounded by multi-million-dollar estates, this beautifully designed 5-bedroom, 4 full bathroom home offers the perfect balance of privacy, functionality, and tropical lifestyle.The layout is thoughtfully distributed with a private primary suite on one side, a separate nanny/guest suite with its own bathroom, and a dedicated wing for the children’s bedrooms—ideal for both family living and entertaining.Just steps from top-rated schools and only 10 minutes from the beach, the property features a stunning outdoor space with a resort-style pool and a charming tiki bar, creating the ultimate South Florida oasis.A rare opportunity to own in a highly sought-after neighborhood where surrounding homes reach $10M+.

The text above is the listing description from the MLS, as written by the listing agent.

The Key Biscayne market

As of , the median asking price in Key Biscayne is $2,235,000, or $1,141 per sq ft, across 147 listings for sale. The median listing for sale there has been on the market for 109 days.

Price and status history

Listing date
Days on market
193
Original list price
$3,850,000
Price changes
1
DateEventPrice
Price changed$3,850,000 → $3,730,000
Listed$3,850,000

From the MLS. RealVista does not show sold prices.

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