About 544 Warren Lane
New construction, this extraordinary custom Cape Dutch residence is a masterwork of timeless design, brought to life by Duncan and Heuser Design and Development, with interiors curated by James Duncan. Every detail, from the graceful gabled facade to the refined finishes within, reflects a rare devotion to craftsmanship and enduring elegance. Offering six generously proportioned bedrooms and six and a half beautifully appointed bathrooms, this home balances gracious scale with warm, livable comfort. Soaring ceilings, thoughtfully placed windows, and an effortless flow between rooms create a sense of light and openness throughout, while curated materials and bespoke millwork lend a distinctly luxurious character to every space. This is more than a house; it is a legacy residence, designed to be lived in beautifully for generations. A truly rare offering for the discerning buyer seeking timeless architecture, exceptional interiors, and uncompromising quality throughout.
Single Family home for sale in Key Biscayne, FL at 544 Warren Lane. This 6 bedroom Single Family home is priced at $7,663/sqft
Features of 544 Warren Lane
| MLS® # | A12079811 |
|---|---|
| Price | $8,000,000 |
| Bedrooms | 6 |
| Bathrooms | 6.00 |
| Full Baths | 5 |
| Half Baths | 1 |
| Square Footage | 1,044 |
| Acres | 0.18 |
| Year Built | 2026 |
| Type | Single Family |
| Sub-Type | Single Family Homes |
| Status | New |
Community Information: Key Biscayne
| Address | 544 Warren Lane |
|---|---|
| Area | 2520 |
| Subdivision | TROPICAL ISLE HOMES SUB |
| City | Key Biscayne |
| County | Miami-Dade |
| State | FL |
| Zip Code | 33149 |
Amenities of 544 Warren Lane
| Amenities | Other |
|---|---|
| Utilities | Cable Available |
| Parking | Attached Carport, Driveway, On Street, Carport |
| View | Garden, Pool |
| Is Waterfront | No |
| Has Pool | Yes |
| Pool | In Ground |
Interior of 544 Warren Lane
| Interior Features | Vaulted Ceiling(s), Walk-In Closet(s) |
|---|---|
| Appliances | Gas Range, Ice Maker |
| Heating | Electric |
| Cooling | Central Air, Electric |
| Fireplace | Yes |
| # of Stories | 2 |
| Stories | Two |
Exterior of 544 Warren Lane
| Exterior Features | Built-in Barbecue |
|---|---|
| Roof | Concrete |
| Construction | Block |
School Information
| Elementary | Key Biscayne K-8 |
|---|---|
| Middle | Ponce De Leon |
| High | Coral Gables |
Additional Information On 544 Warren Lane
| Listing Courtesy of | Duncan Studio Real Estate Division PLLC |
|---|---|
| Date Listed | August 29th, 2026 |
| Zoning | 0100 |
| Foreclosure | No |
| Short Sale | No |
| RE / Bank Owned | No |
Listing Details
| Office | Duncan Studio Real Estate Division PLLC |
|---|