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New Construction Homes for Sale in Key Biscayne, FL

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    $20,300,000 Custom Home

    960 Mariner Dr, Key Biscayne, FL 33149

    • 6 Beds
    • 10 Baths
    • 7,742 Sq Ft

    Discover unparalleled luxury at 960 Mariner Dr, Key Biscayne. This new architectural gem offers over 9,640 SF of living space on a 15,381 SF lot with 106 feet of water frontage. Featuring 6 bedrooms, 8 baths, and 2 half baths, the open-concept design boasts floor-to-ceiling glass, providing stunning views. A 4-person elevator connects all levels, including a third-floor terrace with 360-degree

    Agent Photo

    Francisco Neri

    The Corcoran Group

    (888) 609-8315

    960 Mariner Dr, Key Biscayne, FL 33149
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    $7,970,000 Custom Home

    571 Glenridge Rd, Key Biscayne, FL 33149

    • 5 Beds
    • 7 Baths
    • 3,950 Sq Ft

    Brand-new construction completed at the end of 2025 in one of the most prestigious locations in Key Biscayne, Florida. This exceptional ultra-luxury residence features 5 spacious bedrooms, 7 bathrooms, and a modern architectural design with top-of-the-line finishes throughout. The home is highlighted by soaring double-height ceilings and expansive impact windows that flood the interiors with

    Martha Ledesma Guevara EXP Realty LLC

    571 Glenridge Rd, Key Biscayne, FL 33149
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    $6,395,000 Custom Home

    760 Woodcrest Rd, Key Biscayne, FL 33149

    • 5 Beds
    • 5.5 Baths
    • 4,003 Sq Ft

    This 5 bed, 5.5 bath residence, new construction and never lived in, offers over 4,000 sq ft of contemporary architecture, a chef’s kitchen, high ceilings, floor-to-ceiling impact glass, and an elevated backyard with pool, jacuzzi, and covered terrace. The home features fully finished custom wood closets and sleek backlit LED mirrors in all bathrooms, adding both functionality and a refined

    Xiomara Cortes Compass Florida, LLC

    760 Woodcrest Rd, Key Biscayne, FL 33149
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    $6,900,000 Custom Home

    110 Hampton Ln, Key Biscayne, FL 33149

    • 6 Beds
    • 6.5 Baths
    • 3,550 Sq Ft

    Nestled in one of Miami’s most exclusive and sought-after enclaves, this stunning new construction epitomizes luxury living in Key Biscayne. Designed with sophistication and elegance, this home harmoniously blends contemporary style with the relaxed charm of island life. Expansive open-concept interiors with soaring 11-ft ceilings enhanced by floor-to-ceiling windows flood the home with natural

    Jacqueline Molina Fortune Christie's Intl R.E.

    110 Hampton Ln, Key Biscayne, FL 33149

Frequently Asked Questions

What warranties come with a new construction home?
Most Builders provide a 1-year workmanship warranty, a 2-year systems warranty, and a 10-year structural warranty.
What upgrades are included in a new build vs what is considered extras?
Builders in Key Biscayne, FL usually offer a base package and optional upgrades such as flooring, countertops, and appliances.
Do new construction homes in Key Biscayne, FL hold their value?
Yes, especially in fast-growing areas of Key Biscayne, FL. Resale values are supported by population growth, job opportunities, and desirable schools.
What happens if I find issues after moving in to new build?
Builders typically provide a post-move in warranty service to address punch list items.

Home Trends in Key Biscayne, FL

Housing Trends

Median Sale Price
$1,657,500
Median Single Family Sale Price
$5,197,500
Median Townhouse Sale Price
$4,050,000
Median 2 Bedroom Sale Price
$1,200,000
Median 1 Bedroom Sale Price
$597,499
Average Price Per Sq Ft
$1,219
Number of Homes for Sale
149
Last 12 months Home Sales
208
Months of Supply
8.60
Median List Price
$2,000,000
Median Change From 1st List Price
8%
Median Home Sale Price YoY Change
14%
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