524 Warren Lane, Key Biscayne, FL 33149

$3,730,000

Virtual Tour

https://www.propertypanorama.com/instaview/mia/A11999112

Property Type: Residential Bedrooms: 5 Baths: 4 Square Footage: 2,740 Status: Active

Current Price: $3,730,000 List Date: 4/10/2026 Last Modified: 6/16/2026

Overview

Description

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+.

Listing Details MLS# A11999112

General Property Information

Property Sub Type: Single Family Residence
Bedrooms Total: 5
Bathrooms Total: 4
Bathrooms Full: 4
Building Area Main: 2740
Living Area Main: 2700
Adjusted Area Main: 2713
Year Built: 1950
Garage YN: Yes
Garage Spaces: Yes
Covered Spaces: Yes
Lot Size Area: 8136
Lot Size Acres: 0.19
Senior Community YN: No
Outdoor Living Spaces YN: Yes
Direction Faces: Southwest
Pool Private YN: Yes

Property Features

Dining Area: Formal Dining Electric: Circuit Breakers Exterior Features: Barbecue; Lighting Flooring: Concrete Foundation Details: Slab Guest House Features: 1 Bath; 1 Bedrooms Leasing Permitted Details: Okay To Lease Parking Features: Circular Driveway; Golf Cart Garage Property Condition: Resale Appliances: Dishwasher; Dryer; Electric Range; Gas Range; Ice Maker; Microwave; Oven; Washer Water Heater Details: Electric Water Heater; Gas Water Heater Architectural Style: Other Construction Materials: Block; Pre-Cast Concrete Construction Cooling: Ceiling Fan(s); Central Air Fencing: Fenced Heating: Central Interior Features: Central Vacuum; Dome Kitchen Laundry Features: In Garage Listing Terms: Cash; Conventional Pets Allowed YN: Yes Pets Allowed: Pet Restrictions Possible Pool Features: Concrete; Gunite; In Ground Possession: Close Of Escrow Roof: Barrel Sewer: Public Sewer Special Information: Sold As-Is View: Garden Water Access: Deeded Beach Access Water Source: Public; Other Showing Requirements: 24 Hour Notice Outdoor Living Spaces: Patio Room Types: Family Room; Maid/In-Law Quarters Acreage Description: 1/2 To Less Than 1 Acre Lot

Contract Information

Comp Sale YN: No
Original List Price: 3850000
Occupant Type: Owner

Location and Legal

Country: United States
County Or Parish: Miami-Dade
County Parish Name: Miami-Dade
Street Number: 524
Street Name: Warren
Street Suffix: Lane
City Name: Key Biscayne
Municipal Code: 24
State Or Province: FL
Postal Code: 33149
Postal Code +4: 1827
Postal Zip: 33149
Subdivision Name: TROPICAL ISLE HOMES SUB 1
Area: 2520
Elementary School: Key Biscayne K-8
Middle Or Junior School: Ponce De Leon
High School: Coral Gables
Special Assessment YN: No
Parcel Number: 2442320040220
Subdivision Number: 4
Zoning: 0100
Flood Zone: AE

Financial Information

Membership Fee Required YN: No
Tax Annual Amount: 22265
Tax Year: 2025
Tax Legal Description: TROPICAL ISLE HOMES SUB 1ST ADDN PB 50-72 LOT 28 BLK 3 LOT SIZE 81.360 X 100 OR 9816-2200

Status Change Information

Major Change Timestamp: 2026-06-16T15:56:42Z
Major Change Type: Price Reduced
Price Change Timestamp: 2026-06-16T15:56:42Z
Status Change Date: 2026-04-11

More Information

Leasing Permitted Details

Leasing Permitted YN: Yes
Okay To Lease: Yes

Pool Size Details

Pool Size (WxL): 50x30

Price Calculations

Current Price To SqFt: 1381.48

Section Details

Parcel Number MLX: 0220

Originating Details

Originating System Key: 452825021
Originating System ID: M00000151

Office/Member Information

DXORIGMLSID: SEF

Amenities

Laundry: Yes
Picnic Area: Yes

Dining Area

Formal Dining: Yes

Electric

Circuit Breakers: Yes

Exterior Features

Barbecue: Yes
Lighting: Yes

Flooring

Concrete: Yes

Foundation Details

Slab: Yes

Guest House Features

1 Bath: Yes
1 Bedrooms: Yes

Parking Features

Circular Driveway: Yes
Golf Cart Garage: Yes

Property Condition

Resale: Yes

Fencing

Fenced: Yes

Possession

Close Of Escrow: Yes

Sewer

Public Sewer: Yes

Special Information

Sold As-Is: Yes

View

Garden: Yes

Heating

Central: Yes

Water Access

Deeded Beach Access: Yes

Appliances

Dishwasher: Yes
Dryer: Yes
Electric Range: Yes
Gas Range: Yes
Ice Maker: Yes
Microwave: Yes
Oven: Yes
Washer: Yes

Construction Materials

Block: Yes
Pre-Cast Concrete Construction: Yes

Interior Features

Central Vacuum: Yes
Dome Kitchen: Yes

Laundry Features

In Garage: Yes

Listing Terms

Cash: Yes
Conventional: Yes

Pool Features

Concrete: Yes
Gunite: Yes
In Ground: Yes

Roof

Barrel: Yes

Water Source

Public: Yes
Other: Yes

Water Heater Details

Electric Water Heater: Yes
Gas Water Heater: Yes

Architectural Style

Other: Yes

Cooling

Ceiling Fan(s): Yes
Central Air: Yes

Showing Requirements

24 Hour Notice: Yes

Master Bedroom/Bath

Bidet: Yes
Dual Sinks: Yes
Master Bdrm - Ground: Yes
Separate Shower: Yes

Pets Allowed YN

Yes: Yes

Pets Allowed

Pet Restrictions Possible: Yes

Outdoor Living Spaces

Patio: Yes

Room Types

Family Room: Yes
Maid/In-Law Quarters: Yes

Acreage Description

1/2 To Less Than 1 Acre Lot: Yes

Room Information

Room Name
Family Room
Maid/In-Law Quarters

Listing Office: Serhant

Last Updated: June - 16 - 2026

This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. Copyright 2026 Beaches Multiple Listing Service, Inc. All rights reserved. Information Not Guaranteed and Must Be Confirmed by End User. Site contains live data.

524 Warren Lane, Key Biscayne, FL 33149 (MLS# A11999112)