640 4TH KEY Drive, Fort Lauderdale, FL 33304

$18,900,000 · Active

  • 0 beds
  • 0 baths
  • 6,974 sq ft
  • 64 days on market
  • Single Family Residence
  • Built 2028
  • Lot 26,136 sq ft
  • 15,000 sq ft total
  • 12 garage spaces
  • Broward County
  • MLS# B26072978
  • Sunrise Key
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About this home

Extraordinary opportunity to create landmark waterfront estate on Sunrise Key, Ft Lauderdale's coveted guard-gated, all-waterfront community. Expansive trophy point offers 350 feet of waterfrontage, prime dockage for 50-meter yacht, & additional dockage for 2 yachts up to 100 feet. Architectural plans included for spectacular 15,000 sf, 3-story home designed for ultimate South Florida luxury lifestyle. Property features new seawall & dock, 12' of water depth at low tide, protected no-wake location, & rare three-phase electrical power for supporting shore-power requirements of larger yachts. Swift ocean access & exceptional location minutes from Las Olas Blvd, fine dining, upscale shopping, private aviation, highly regarded schools. An irreplaceable offering for discerning yachtsman.

Features

Schools

  • Elementary: Harbordale
  • Middle: Sunrise
  • High: Fort Lauderdale

Presented by

BreakThru Realty · (786) 914-1017

Courtesy of

Fidelity Real Estate LLC · waterfrontjim@gmail.com · Listing agent: James H Morlock

BeachesMLS logo All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright © 2026 BeachesMLS, Inc. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data is deemed reliable but is not guaranteed accurate by BeachesMLS. Listings held by brokerage firms other than BreakThru Realty carry the name of the listing broker.

Schedule a showing

Call or text BreakThru Realty at (786) 914-1017 or email sales@breakthrurealty.com to see 640 4TH KEY Drive.

Before You Make an Offer

Buying a waterfront home: ocean access, bridges and docks

Your Waterfront Buyer May Already Be Working With Us

BreakThru Realty works with buyers searching for waterfront homes with ocean access, no fixed bridges, deep water, private docks and Intracoastal frontage. Boaters know the vessel they need to keep behind the house, and they tell us. If you own a waterfront home, a broker can compare its frontage, dock and route to the ocean with those requirements and discuss a potential buyer match before you list.

BreakThru Realty works with hundreds of prequalified buyers searching for properties. Before you list, a broker reviews what you own, the market around it and whether an existing buyer's requirements match. If none does, you see how we would position it to reach other qualified buyers.

Find Out If We Have Your Buyer · Discuss Selling With BreakThru Realty

A potential match is a conversation, not an offer, until the buyer sees your property and makes one. No buyer is named and nothing about your property or business is shared until you decide to proceed.

Questions About 640 4TH KEY Drive

How much is 640 4TH KEY Drive?
640 4TH KEY Drive is listed at $18,900,000, which is about $2,710 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 640 4TH KEY Drive?
The listing reports annual property taxes of $170,741 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 640 4TH KEY Drive built?
640 4TH KEY Drive was built in 2028 and the listing describes its condition as resale. 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 640 4TH KEY Drive been on the market?
640 4TH KEY Drive has been listed for 64 days. Days on market and price changes are the first signals of how much room there is to negotiate.
Is 640 4TH KEY Drive waterfront?
Yes. The listing describes the water as no fixed bridge ocean access river front seawall point lot. For a home with dockage, confirm the water depth at low tide, the seawall condition and whether the route to the inlet passes under any fixed bridges before you offer.
Which schools serve 640 4TH KEY Drive?
The MLS lists Harbordale (elementary), Sunrise (middle), Fort Lauderdale (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 640 4TH KEY Drive?
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.

To request a tour, call (786) 914-1017 or email sales@breakthrurealty.com.

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The 10 bedroom home at 1239 Middle River Drive, Fort Lauderdale, FL 33304 is comparable and listed for sale at $15,495,000. Fort Lauderdale neighborhoods include Croissant Park and Progresso Village. Nearby ZIP codes include 33301 and 33305. This property also neighbors Wilton Manors, Lazy Lake, and Oakland Park. Compare it with the Fort Lauderdale housing market report.