Skip to property details
📷 1 / 39
Key Biscayne For Sale SINGLE FAMILY RESIDENCE

690 Warren Ln, Key Biscayne FL 33149

690 Warren Ln, Key Biscayne FL 33149

$5,478,000 ≈ ₿82.5149

MLS A12010108 · 82 days on market

4

Beds

3.5

Baths

3,549

SQUARE FEET

Single Family Residence

Type

2000

Built

Listing courtesy of

One Sotheby's International Realty

Brigitte Nachtigall

MLS® #A12010108

Listing information last updated May 1, 2026

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

Overview

This single family residence in Key Biscayne has 4 bedrooms and 3.5 bathrooms across 3,549 square feet, and is listed for sale at $5,478,000 (about $1,544 per square foot). Built in 2000.

A truly exceptional Miami Modern Tropical residence set on a prime 8,010 SF corner lot, offering 3,549 SF of beautifully curated living space with 4 bedrooms and 3.5 bathrooms. Designed by architect Hervin Romney, a founding member of Arquitectonica, the home reflects a distinctive architectural vision inspired by the organic principles of Frank Lloyd Wright and the expressive forms of Antoni Gaudí, where art, design, and nature seamlessly converge.

This residence captivates with its abundance of natural light, soaring high ceilings, fluid open spaces, and harmonious lines that create a sense of warmth, sophistication, and effortless flow throughout the main living areas.

The beautifully remodeled kitchen and bar are a true centerpiece, featuring high-end appliances, premium finishes, refined craftsmanship, and a design that balances functionality with striking aesthetics.

Step outside into your own private tropical retreat, where lush landscaping, graceful curved terraces, and a stunning swimming pool create an atmosphere of tranquility and escape. This outdoor sanctuary is perfect for both relaxation and entertaining.

As an added privilege, the property includes membership to the Key Biscayne Beach Club, offering exclusive access to one of Miami’s most coveted coastal lifestyles. Key Biscayne is renowned for its pristine beaches, charming restaurants, and vibrant yet relaxed atmosphere—delivering a true island lifestyle just minutes from the city.

Listing history

Listed for sale

Apr 30, 2026 · MIAMI MLS

$5,478,000

Days on market

as of today

82 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)

$19,950

Association type

None

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 #A12010108
Price$5,478,000
Size3,549 Square Feet
Bedrooms4
Bathrooms3.5
Garage2
Year built2000
TypeSingle Family Residence
StatusFor Sale
Price / Square Feet$1,544
Flood zoneAE

Features & amenities

Built-in Features
Closet Cabinetry
Cooking Island
Den/Library/Office
Dishwasher
Disposal
Dryer
Fire Sprinklers
Gas Range
Has a View
Has Cooling System
Has Garage
Has Heating System
Ice Maker
Microwave
Open Balcony
Open Parking
Refrigerator
Trash Compactor
Utility Room/Laundry
Volume Ceilings
Walk-In Closet(s)
Wall Oven
Washer

Location

690 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 4 bedrooms.

How many bathrooms does this property have?

This Key Biscayne single family residence has 3.5 bathrooms.

What is the square footage?

This Key Biscayne single family residence offers 3,549 square feet of living space.

When was this property built?

This Key Biscayne single family residence was built in 2000.

How many parking spaces are included?

This Key Biscayne single family residence includes 2 parking spaces.

What is the view from this property?

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

What are the annual property taxes?

Annual property taxes for this Key Biscayne single family residence are approximately $19,950, 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 37 days.

Ask about this home

Questions on price, building, or financing? Send a note — we reply fast.

Book a private showing

Schedule a tour of 690 Warren Ln, Key Biscayne FL 33149

Schedule a Tour

Tour Type

By submitting you agree to be contacted about this property. MCR agents are REALTORS® · Equal Housing Opportunity. We never advertise a "free" buyer's agent — we'll explain compensation up front.

$5,478,000

690 Warren Ln, Key Biscayne FL 33149

Key Biscayne · 4 bd · 3.5 ba · 3,549 Square Feet

Share this home

Text it, email it, post it — a branded card travels with every link.

Message Email WhatsApp Facebook X LinkedIn

More like this

Other homes near Key Biscayne

Thinking of selling?

Own a home in Key Biscayne?

Get a no-obligation MCR estimate and see how your block has trended this year.

What's my home worth →

Own a rental?

List, screen, and lease with MCR.

Applicant screening, leases, and rent collection — managed end to end by a Miami brokerage.

List your rental →

Listing data © MIAMI MLS · IDX information deemed reliable but not guaranteed · 82 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.

$5,478,000

4 bd · 3.5 ba · 3,549 Square Feet

Tour →

Compare listings

Compare

Sign In

Register

Reset Password

Please enter your username or email address, you will receive a link to create a new password via email.