
524 Warren Ln, Key Biscayne, FL 33149
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
| Date | Event | Price |
|---|---|---|
| Price changed | $3,850,000 → $3,730,000 | |
| Listed | $3,850,000 |
From the MLS. RealVista does not show sold prices.



