How much is 544 Warren Lane?

544 Warren Lane is listed at $8,000,000, which is about $7,663 per square foot. The listing page shows comparable active listings and recent closed sales nearby so you can judge the asking price against what buyers have actually paid.

What are the property taxes on 544 Warren Lane?

The listing reports annual property taxes of $29,546 for 2025. Taxes are reassessed at the sale price after a purchase, so a new owner's bill can differ from the current owner's; use the mortgage calculator on this page for an estimate.

When was 544 Warren Lane built?

544 Warren Lane was built in 2026 and the listing describes its condition as new construction. Age matters for insurance and financing in Florida: ask about the roof, the electrical panel and, for a condo built before the current code, the building's structural reserve study.

How long has 544 Warren Lane been on the market?

544 Warren Lane has been listed for 25 days. Days on market and price changes are the first signals of how much room there is to negotiate.

Which schools serve 544 Warren Lane?

The MLS lists Key Biscayne K-8 (elementary), Ponce De Leon (middle), Coral Gables (high). School assignments are set by the district and can change; verify them with the school board before you rely on them.

How do I see 544 Warren Lane?

Request a showing from this page or call BreakThru Realty and a licensed agent will arrange a private tour, in person or by video, and answer anything the listing leaves out.

544 Warren Lane, Key Biscayne, FL 33149

$8,000,000 · Active

6 beds
6 baths
1,044 sq ft
Single Family Residence
Built 2026
Lot 7,840.8 sq ft
MLS# A12079811
Tropical Isle Homes Sub

Photo 1 at 544 Warren Lane, Key Biscayne

Photo 2 at 544 Warren Lane, Key Biscayne

Photo 3 at 544 Warren Lane, Key Biscayne

Photo 4 at 544 Warren Lane, Key Biscayne

Photo 5 at 544 Warren Lane, Key Biscayne

Photo 6 at 544 Warren Lane, Key Biscayne

Photo 7 at 544 Warren Lane, Key Biscayne

Photo 8 at 544 Warren Lane, Key Biscayne

About this home

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.

Features

Vaulted Ceiling(s)
Walk-In Closet(s)
Built-in Barbecue
In Ground

Schools

Elementary: Key Biscayne K-8
Middle: Ponce De Leon
High: Coral Gables

Presented by

BreakThru Realty · (786) 914-1017

Courtesy of

Duncan Studio Real Estate Division PLLC · Listing agent: James S Duncan

Schedule a showing

Call or text BreakThru Realty at (786) 914-1017 or email sales@breakthrurealty.com to see 544 Warren Lane.

Questions About 544 Warren Lane

How much is 544 Warren Lane?: 544 Warren Lane is listed at $8,000,000, which is about $7,663 per square foot. The listing page shows comparable active listings and recent closed sales nearby so you can judge the asking price against what buyers have actually paid.
What are the property taxes on 544 Warren Lane?: The listing reports annual property taxes of $29,546 for 2025. Taxes are reassessed at the sale price after a purchase, so a new owner's bill can differ from the current owner's; use the mortgage calculator on this page for an estimate.
When was 544 Warren Lane built?: 544 Warren Lane was built in 2026 and the listing describes its condition as new construction. Age matters for insurance and financing in Florida: ask about the roof, the electrical panel and, for a condo built before the current code, the building's structural reserve study.
How long has 544 Warren Lane been on the market?: 544 Warren Lane has been listed for 25 days. Days on market and price changes are the first signals of how much room there is to negotiate.
Which schools serve 544 Warren Lane?: The MLS lists Key Biscayne K-8 (elementary), Ponce De Leon (middle), Coral Gables (high). School assignments are set by the district and can change; verify them with the school board before you rely on them.
How do I see 544 Warren Lane?: Request a showing from this page or call BreakThru Realty and a licensed agent will arrange a private tour, in person or by video, and answer anything the listing leaves out.

Explore

Recently Sold Nearby

669 S Mashta Drive, Key Biscayne, FL 33149 · Sold $5,200,000 · 4 bd · 4 ba · 3,382 sq ft
111 Reef Lane, Key Biscayne, FL 33149 · Sold $10,850,000 · 7 bd · 6 ba · 5,008 sq ft

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Nearby ZIP Codes

A comparable home, 669 S Mashta Drive, Key Biscayne, FL 33149, sold for $5,200,000 in August 2026. Other Key Biscayne neighborhoods include Key Colony and Commodore Club. Nearby ZIP codes include 33131 and 33129. This property also neighbors Brickell, Miami, and Coconut Grove. Compare it with the Key Biscayne housing market report.