Sell Your Home
Get a free home valuation
Contact
Tell us about your needs

690 Warren Ln, Key Biscayne FL 33149

House For Sale
$5,478,000

BTC: 85.59375000

ETH: 3,137.45704467

34 days
4 bds
3 ba
3,549 sqft

Overview

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.

Location

Details

Type:
Residential
Parking:
Driveway
Year Built:
2000
Lot:
8010 Square Feet
Heating:
Central
Price/sqft:
$1,544
Cooling:
Central Air
HOA:
No Data

Valuation

Our model vs. what's actually selling nearby.
Estimate
$3,800,000
$1.9M – $5.2M
Confidence Low
List vs. estimate
$1.7M above estimate
List $5,478,000 · +44.2%
Our model says this listing is priced above recent comparable activity. Room to negotiate.
Price per sq ft
$1,543
-19.9% vs. city median $1,925
Based on
13 MLS comparables
+ 30 public-records sales within 0.5 mi
Median actual sale: $2.9M
Median of recent comparable listings. Sold comps use closing price, active listings use list price.

Highlights

Annual tax
$19,950
2025
Pool
In Ground
View
Other
Garage
2 car garage
All facts and features
  • Flooring

    • Marble

    • Other

    • Wood

    Heating

    • Central

    Cooling

    • Central Air

    Appliances

    • Trash Compactor

    • Dishwasher

    • Disposal

    • Dryer

    • Ice Maker

    • Microwave

    • Gas Range

    • Refrigerator

    • Wall Oven

    • Washer

    Other interior features

    • Built-in Features

    • Closet Cabinetry

    • Cooking Island

    • Fire Sprinklers

    • Volume Ceilings

    • Walk-In Closet(s)

    • Den/Library/Office

    • Utility Room/Laundry

    Bedrooms and bathrooms

    • Bedrooms: 4

    • Bathrooms: 1

    • Full bathrooms: 3

  • Parking

    • Driveway

    Property

    • Exterior Features: Open Balcony

    Lot

    • Lot: 8010 Square Feet

    Other Property Information

    • Parcel Number: 24-52-05-001-0790

    • Zoning: 0100

  • Type and style

    • Property Type: Residential

    • Property Sub Type: Single Family Residence

  • Other financial information

    • Annual tax amount: $19,950

  • Source details

    • MLS ID: A12010108

    Other facts

    • Construction Materials: CBS Construction

    • Laundry Features: Utility Room/Laundry

    • Lot Features: Less Than 1/4 Acre Lot

    • Patio And Porch Features: Open Balcony

    • Pool Features: In Ground

    • Window Features: Complete Impact Glass / Blinds

    • Direction Faces: East

    • Architectural Style: Attached / Two Story

    • Garage Spaces: 2

    • Garage: Yes

    • Living Area: 3549

    • Water Source: Municipal Water

    • Subdivision Name: BISCAYNE KEY ESTATES

Private inquiry
Talk to the advisor on this listing.
Floor plans, HOA docs, off-market comparables, scheduling a private showing — one message, direct to the local specialist.

More like this

For Sale
$5,899,999
House
6 bds · 5 ba · 3,584 sqft
BISCAYNE KEY ESTATES, Key Biscayne
762 Fernwood Rd, Key Biscayne FL 33149
For Sale
$3,900,000
House
3 bds · 3 ba · 2,412 sqft
ISLAND HOUSE APT INC - CO, Key Biscayne
200 Ocean Lane Dr # 401, Key Biscayne FL 33149
For Sale
$6,395,000
House
5 bds · 5 ba · 4,003 sqft
BISCAYNE KEY ESTATES, Key Biscayne
760 Woodcrest Rd, Key Biscayne FL 33149
For Sale
$6,950,000
House
5 bds · 5 ba · 5,421 sqft
BISCAYNE KEY ESTATES, Key Biscayne
685 Harbor Ln, Key Biscayne FL 33149
For Sale
$4,550,000
Condo/Co-op
3 bds · 4 ba · 3,084 sqft
OCEAN TOWER TWO, Key Biscayne
791 Crandon Blvd # 405, Key Biscayne FL 33149
For Sale
$4,450,000
Condo/Co-op
4 bds · 4 ba · 2,604 sqft
KEY COLONY NO 1, Key Biscayne
201 Crandon Blvd # 175, Key Biscayne FL 33149
For Sale
$5,100,000
Townhouse
4 bds · 6 ba · 3,254 sqft
KEY COLONY NO 1,KEY COLONY, Key Biscayne
201 Crandon Blvd # 174, Key Biscayne FL 33149
For Sale
$3,980,000
House
5 bds · 4 ba · 2,821 sqft
TROPICAL ISLE HOMES SUB 4, Key Biscayne
269 Cranwood Dr, Key Biscayne FL 33149

Market around this address

Live counts in the same area.
View all

The multiple listing information is provided by the Miami Association of REALTORS® from a copyrighted compilation of listings. The compilation of listings and each individual listing are ©2026-present Miami Association of REALTORS®. All Rights Reserved. The information provided is for consumers' personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Listing courtesy of: One Sotheby's International Realty