640 4TH KEY Drive, Fort Lauderdale, FL 33304 (MLS# B26072978)

640 4TH KEY Drive, Fort Lauderdale, FL 33304

New Listing
$18,900,000
Property Type: Residential Square Footage: 15,000 Status: Active
Current Price: $18,900,000 List Date: 9/05/2026 Last Modified: 9/06/2026

Overview

Description

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.

Listing Details MLS# B26072978

General Property Information

Property Sub Type
Single Family Residence
Building Area Main
15000
Building Area Source
Other
Living Area Main
6974
Living Area Source
Other
Adjusted Area Main
4668
Accessibility Features YN
Yes
Year Built
2028
Garage YN
Yes
Attached Garage YN
Yes
Garage Spaces
12
Covered Spaces
12
Parking Total
12
Gated Community YN
Yes
Lot Size Area
26301
Lot Size Acres
0.6
Senior Community YN
No
Waterfront YN
Yes
Stories Total
3
Stories
3
Direction Faces
Southwest
Fireplace YN
No
Pool Private YN
Yes
LP/Assessed Value
2.47

Property Features

Accessibility Features: Accessible Entrance Dining Area: Other Electric: Three Phase Exterior Features: Other Flooring: Other Foundation Details: See Remarks Parking Features: Attached Garage; Garage Property Condition: Resale Special Listing Conditions: Standard Appliances: Other Architectural Style: Contemporary Boat and Dock Features: Deeded Dock; No Wake Zone; Private Dock Construction Materials: Block Cooling: Other Heating: Other Interior Features: Other Laundry Features: Other Levels: Three Or More Listing Terms: Other Main Living Area: Other Main Living Area Pets Allowed YN: Yes Pets Allowed: No Restrictions Pool Features: In Ground Possession: Close Of Escrow Restrictions: See Remarks Roof: Other Sewer: Public Sewer Structure Type: House Tax Information: No Homestead Utilities: Sewer Connected; Water Connected Water Access: No Fixed Bridge; Ocean Access Water Source: Public Water View: Intracoastal; River Waterfront Features: Point Lot; River Front; Seawall Window Features: Other Showing Requirements: Call Listing Agent; Listing Agent Must Accompany; Occupied Room Types: Kitchen; Living Room; Master Bedroom Acreage Description: 1/2 To Less Than 1 Acre Lot; Less Than 1 Acre Lot

Contract Information

Comp Sale YN
No
Original List Price
18900000
Listing Service
Full Service

Location and Legal

Country
United States
County Or Parish
Broward
Street Number
640
Street Name
4TH KEY
Street Suffix
Drive
Municipality Type
Incorporated
State Or Province
FL
Postal Code
33304
Postal Code +4
3808
Subdivision Name
SUNRISE KEY
Area
3280
Geographic Area
FTSE - Ft Lauderdale SE (3280-3282;3600;3800)
Elementary School
Harbordale
Middle Or Junior School
Sunrise
High School
Fort Lauderdale
Special Assessment YN
No
Parcel Number
504201350430
Subdivision Number
35
Zoning
RS-4.4
Flood Zone
AE

Financial Information

Master Association YN
No
Membership Fee Required YN
No
Tax Annual Amount
170741.19
Tax Year
2025
Tax Assessed/SOH Value
7659060
Tax Legal Description
SUNRISE KEY 45-6 B LOT 41 & 42
Assessor Market Value
7659060

Status Change Information

Major Change Timestamp
2026-09-05T23:18:03Z
Major Change Type
New Listing
Status Change Date
2026-09-05

More Information

Leasing Permitted Details

Leasing Permitted YN
Yes

Boat and Dock Information

Dock
Yes
Boat Max Length
160

Other Area Details

Living Area Other Structures
3031
Building Area Other Structures
3031
Adjusted Area Other Structures
3031

Pet Details

Pet Fee YN
No

Price Calculations

Current Price To SqFt
2710.06

Originating Details

Originating System Key
20260905173439434085000000
Originating System ID
M00000170

Room Information

Room Name
Kitchen
Living Room
Master Bedroom
IDX
Listing Office: Fidelity Real Estate LLC
Last Updated: September - 06 - 2026
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