BISCAYNE KEY ESTATES
690 Warren Ln, Key Biscayne FL 33149
4 beds · 3.5 baths · 3,549 ft²
$5,478,000
Est. Payment $29,156/mo
4
Bedrooms
3.5
Bathrooms
3,549
Sq. Ft.
2000
Year Built
2
Garage
1
Days on Market
Description
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.
Facts
- MLS#
- A12010108
- Subdivision
- BISCAYNE KEY ESTATES
- Property Type
- Residential
- Property Sub Type
- Single Family Residence
- Year Built
- 2000
- Lot Size
- 8,010 ft²
- Sq. Ft.
- 3,549 ft²
- Sq. Mt.
- 330 m²
- Price per sq. ft.
- $1,544/ft²
- Price per sq. mt.
- $16,600/m²
- Stories
- —
- Garage
- 2 spaces
- Pool
- —
- Days on Market
- 1 day
- Listed
- Apr 30, 2026
- Last Updated
- May 1, 2026
- Price/Lot Sq.Ft.
- $684/ft²
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Market insights for Key Biscayne
Live MLS-derived activity. Forecast is a conservative rule-of-thumb estimate — not a guarantee.
Sellers market
May 2026
34
Median days to sold
+4.5%
1-year price forecast (est.)
Price & tax history
From the live MIAMI MLS feed. Older history requires the ListingHistory resource (not yet enabled).
| 4/30/2026 | Listed for sale | $5,478,000 |
History reflects fields present on the live MLS record. Full multi-year history requires the MIAMI ListingHistory resource (not yet enabled).
Location
GreatSchools Summary Ratings
Public + private K-12 schools within 5 miles of this listing.
South Pointe Elementary SchoolPK,KG,1,2,3,4,5 · public · 0.1 mi
Landow Yeshiva CenterPK,KG,1,2,3,4,5,6,7,8,9,10,11,12 · private · 0.7 mi
Klurman Mesivta High School7,8,9,10,11 · private · 0.7 mi
Fienberg/Fisher K-8 CenterPK,KG,1,2,3,4,5,6,7,8 · public · 0.9 mi
Miami Beach Adult & Community Ed CenterUG · public · 0.9 mi
Fisher Island Day SchoolPK,KG,1,2,3,4,5,6,7,8 · private · 1.0 mi
Temple Beth Shmuel MontessoriPK,KG · private · 1.3 mi
Miami Beach Senior High School9,10,11,12 · public · 1.8 mi
Rasg Hebrew AcademyPK,KG,1,2,3,4,5,6,7,8,9,10,11,12 · private · 1.9 mi
Rabi Alexander S Gross HebrewPK,KG,1,2,3,4,5,6,7,8,9,10,11,12 · private · 1.9 mi
Estimated Monthly Payment
$33,871/mo
Principal & Interest
$29,156
Property Tax
$4,565
Insurance
$150
HOA
$0
Estimates only. Actual payment depends on credit, lender, insurance carrier, and FL/Miami-Dade specifics. Contact Rangely for a precise quote.
The data relating to real estate for sale on this website comes in part from the Southeast Florida Multiple Listing Service. MLS Data is deemed reliable, but is not guaranteed accurate by MIAMI REALTORS®.
Accuracy of listing information is not guaranteed. Listing information is provided for personal consumer, non-commercial use, solely to identify potential properties for potential purchase. All other use is strictly prohibited and may be a violation of federal and state law.
Copyright Southeast Florida MLS a/k/a SEFMLS © 2026.
Updated within 24 hours
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