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Key Biscayne For Sale SINGLE FAMILY RESIDENCE PRICE REDUCED

524 Warren Ln, Key Biscayne FL 33149

524 Warren Ln, Key Biscayne FL 33149

$3,730,000 ≈ ₿56.3316

MLS A11999112 · 102 days on market

5

Beds

4

Baths

2,700

SQUARE FEET

Single Family Residence

Type

1950

Built

Listing courtesy of

Serhant

Fabrice Ernandes

MLS® #A11999112

Listing information last updated July 21, 2026

MiamiCityRealty.com is an agent's best friend. We proudly co-broke and partner with Serhant — and every agent and broker in Miami — to get the deal done.

Overview

This single family residence in Key Biscayne has 5 bedrooms and 4 bathrooms across 2,700 square feet, and is listed for sale at $3,730,000 (about $1,381 per square foot). Built in 1950.

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 history

Price reduced

↓ $20,000 from $3,750,000 · Jun 16, 2026 · MIAMI MLS

$3,730,000

Listed for sale

Apr 10, 2026 · MIAMI MLS

$3,850,000

Days on market

as of today

102 days

Building & financials

FROM MIAMI MLS

The carrying-cost and structural facts that close or kill a Miami deal — straight from the listing feed.

Annual property tax (2025)

$22,265

Association type

None

Pets

Allowed (verify restrictions)

FEMA flood zone

AE

Dues, taxes, and association data per MIAMI MLS and public records; flood zone from FEMA NFHL. Verify with the HOA, county, and your insurer during due diligence.

Property details

MLS #A11999112
Price$3,730,000
Size2,700 Square Feet
Bedrooms5
Bathrooms4
Garage1
Year built1950
TypeSingle Family Residence
StatusFor Sale
Price / Square Feet$1,381
Flood zoneAE

Features & amenities

Barbeque
Dishwasher
Dome Kitchen
Dryer
Electric Range
Electric Water Heater
Family Room
Has a View
Has Cooling System
Has Garage
Has Heating System
Ice Maker
Lighting
Microwave
Open Parking
Separate Guest/In-Law Quarters
Utility/Laundry In Garage
Wall Oven
Washer

Location

524 Warren Ln, Key Biscayne FL 33149

Estimate your payment

$

Est. monthly payment

per month

Principal & interest
Property tax (est.)
Down (20%)
Ask about real rates →

Estimate only — not a Loan Estimate, pre-approval, or commitment. Taxes, insurance & HOA vary. Confirm with a licensed lender.

Questions, answered

How many bedrooms does this property have?

This Key Biscayne single family residence has 5 bedrooms.

How many bathrooms does this property have?

This Key Biscayne single family residence has 4 bathrooms.

What is the square footage?

This Key Biscayne single family residence offers 2,700 square feet of living space.

When was this property built?

This Key Biscayne single family residence was built in 1950.

How many parking spaces are included?

This Key Biscayne single family residence includes 1 parking space.

What is the view from this property?

The view from this Key Biscayne single family residence is Garden.

Are pets allowed?

Pet policy for this Key Biscayne single family residence: Restrictions Or Possible Restrictions.

What are the annual property taxes?

Annual property taxes for this Key Biscayne single family residence are approximately $22,265, per the latest tax record.

How long has this property been on the market?

This Key Biscayne single family residence has been on the market for 102 days.

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$3,730,000

524 Warren Ln, Key Biscayne FL 33149

Key Biscayne · 5 bd · 4 ba · 2,700 Square Feet

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Listing data © MIAMI MLS · IDX information deemed reliable but not guaranteed · 102 days on market.

We do not advertise a “free” buyer’s agent; buyer-representation compensation is disclosed in writing. Bitcoin pricing is indicative and updates with the market — not financial, tax, or legal advice. Buyer to independently verify all measurements, assessments, and flood & insurance facts.

$3,730,000

5 bd · 4 ba · 2,700 Square Feet

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