Save
Ask
Tour
Hide
Share
$4,950,000
14 Days On Site

143 Dorsett Drive
Marathon, FL 33050

For Sale|Single Family Residence|Active
4
Beds
3
Total Baths
3
Full Baths
2,121
SqFt
$2,334
/SqFt
2024
Built
Subdivision:
Dorsett Sub (59.0)
County:
Monroe
Listing courtesy of Saara Victoria Staten of Engel & Völkers Marathon
Call Now: 305-395-3300
Is this the listing for you? We can help make it yours.
305-395-3300
143 Dorsett Drive143 Dorsett Drive143 Dorsett Drive143 Dorsett Drive
Save
Ask
Tour
Hide
Share

Mortgage Calculator

Monthly Payment (Est.)

Enter an interest rate to see your estimated monthly payment.
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2026 Information is deemed reliable but not guaranteed.

Introducing - Casa Del Mar Estate - this exceptional new home offers a rare level of privacy, scale, and waterfront living on an expansive 26,000+ square foot lot accessed by a private road. Designed to take full advantage of its spectacular setting, the property enjoys unobstructed ocean views and an effortless connection between the residence and the surrounding water. The main living quarters offer four bedrooms and three bathrooms, complemented by substantial finished storage space on the lower level. Built with quality and longevity in mind, the residence features impact-resistant windows and doors, a durable metal roof, concrete construction, and premium finishes throughout, offering the ideal combination of style, security, and peace of mind for waterfront living in the Florida Keys. Beyond the residence, the grounds have been thoughtfully designed for refined outdoor living and entertaining, with a resort-style pool positioned directly toward the ocean and a beautifully appointed gazebo creating the perfect setting for sunset gatherings and private celebrations. An outdoor kitchen, pool table, and table tennis area further extend the living space outdoors, creating an environment equally suited to relaxed afternoons with family or elegant entertaining with guests. The waterfront experience is equally impressive, with generous dockage and a new 20,000-pound boat lift, providing exceptional convenience for boating. Two substantial outdoor sheds offer additional storage for boat side essentials, tools, fishing equipment, and water toys, while the expansive grounds provide something rarely found in the Keys: meaningful room for future expansion. A generous portion of the property remains available for new owners to reimagine and potentially add a guest house, A rare combination of privacy, expansive oceanfront grounds, unobstructed views, exceptional boating amenities, and future expansion potential, offering the ultimate Florida Keys lifestyle.

Save
Ask
Tour
Hide
Share
Listing Snapshot
Price 
$4,950,000
Days On Site 
14 Days
Bedrooms 
4
Inside Area (SqFt) 
2,121 sqft
Total Baths 
3
Full Baths 
3
Partial Baths 
N/A
Lot Size 
0.66 Acres
Year Built 
2024
MLS® Number 
621424
Status 
Active
Property Tax 
$21,084.91
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
2 weeks agoListing first seen on site
2 weeks agoListing updated with changes from the MLS®
General Features
Acres 
0.66
Parking 
OpenRV Access/ParkingStorageCovered
Parking Spaces 
4
Pets 
Yes
Property Condition 
New Construction
Property Sub Type 
Single Family Residence
SqFt Total 
2121
Zoning 
RM - Residential Medium
Interior Features
Appliances 
WasherDryerDishwasherRefrigeratorRangeOvenMicrowaveFreezerStainless Steel Appliance(s)Ice Maker
Cooling 
Central AirCeiling Fan(s)
Flooring 
Tile
Furnished 
Unfurnished
Interior 
Walk-In Closet(s)Built-in Features
Laundry Features 
Laundry Room
Save
Ask
Tour
Hide
Share
Exterior Features
Exterior 
Outdoor KitchenStorage
Fencing 
Fenced
Other Structures 
Shed(s)
Patio And Porch 
PorchScreened
Pool Features 
In Ground
Private Pool 
Yes
Roof 
Metal
View 
Bay
Waterfront 
Yes
Waterview 
Bay
Windows/Doors 
French Doors
Community Features
MLS Area 
19 - Crawl Key & Grassy Key
Financing Terms Available 
CashConventional
Listing courtesy of Saara Victoria Staten of Engel & Völkers Marathon



Listing information is provided by Participants of the Florida Keys Board of REALTORS MLS. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. Copyright 2026, Florida Keys Board of REALTORS MLS.
Data last updated at: 2026-10-13 04:52 PM UTC

Neighborhood & Commute
Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
Save
Ask
Tour
Hide
Share