For sale
$3,730,000
Est. $27,227/mo —
5
bd
•
4 ba
•
2,700
sq ft

524 Warren Ln, Key Biscayne, FL 33149

map-entry

About this home

Single-familyProperty Type
1950Year Built
8,136 sq ftLot Size
$1,381Price/Sq.Ft.
1 car garageParking
Listed by Fabrice Ernandes • Serhant
•786-603-0184 (agent)
•646-480-7665 (broker)
Listing updated:
Redfin checked: 2 minutes ago
•Source:MARMLS #A11999112
178 days on Redfin • 311 views • 11 favorites

Payment calculator

$27,227 per month

Principal and interest$20,865
Property taxes
HOA dues
Home insurance
Utilities
Down payment
20% ($746,000)
Home price
$3,730,000
Loan details
30-yr fixed, 7.5%
5 minutes to get started. No credit impact. 

See this home in person

Open houses
No upcoming open houses.

Around this home

Schools

Key Biscayne K-8 Center

Public PreK-8 • Assigned • 0.2mi

8/10
Coral Gables Senior High School

Public PreK-12 • Assigned • 6.5mi

5/10
Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Offer insights

524 Warren Ln · $3,730,000
$3.61M and above
75% chance or better to win
Why $3.61M+ is a strong offer
DAYS ON MARKET
179 days
The average home goes pending in 74 days.
SALE-TO-LIST
96.0%
Most homes are selling 4% below list price.
About offer insights

Property details

Kitchen

Kitchen

Bathroom

Bathroom

Bedroom

Bedroom

Living

Living

  • Interior features
  • Bidet
  • Bedroom on main level
  • Dining area
  • Separate/formal dining room
  • Dual sinks
  • Shower only
  • Central vacuum
  • Bedrooms
  • Includes family room, guest quarters, and in-law suite
  • Bathrooms
  • 4 full bathrooms
  • Kitchen
  • Built-in oven
  • Electric range
  • Some gas appliances
  • Microwave
  • Icemaker
  • Dishwasher
  • Laundry & utility
  • Washer
  • Dryer
  • Laundry area in garage
  • Electric water heater
  • Flooring
  • Concrete
  • Heating & cooling
  • Central heating
  • Central air
  • Ceiling fans

Sale and tax history for 524 Warren Ln

Public record

Beds
4
Baths
3
Stories
1
Lot width
—
Lot depth
—
Lot size
8,136 Sq. Ft.
Year renovated
1980
Finished Sq. Ft.
2,700
Unfinished Sq. Ft.
—
Total Sq. Ft.
2,700
Year built
1950
Style
Single Family Residential
County
Miami-Dade County
APN
2442320040220
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 14, 2026.

Climate risks

9/10 Flood Factor

Estimated 80%+ chance of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

Heat Factor

We're working on getting current and accurate heat risk information for this home.

10/10 Wind Factor

99% chance of strong winds in next 30 years

2/10 Air Factor

1 unhealthy days expected this year, 1 days in 30 years

Provided by First Street

Historical weather

Key Biscayne, FL • 33149
Average low and high temperatures (°F)
73
63
75
66
77
70
79
74
84
79
86
80
88
82
88
81
86
78
83
78
80
73
77
69
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Sun exposure

93/ 100

Exceptional sunlight

Sunscore

This home ranks in the top 16% for direct sun exposure in Key Biscayne. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

9.9 hrs
7 hrs
JuneDecember
Provided by Shadowmap

Redfin Estimate for 524 Warren Ln

We cannot show automated home-value estimates for this home. 
 

Nearby homes have recently sold between $3,000,000 and $4,700,000.

Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $3.0M to $4.7M.

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GreatSchools Ratings provided by GreatSchools.org.