57783 Morton Street, Marathon, FL 33050
$29,500,000
Property Type:
Residential
Bedrooms:
10
Baths:
13
Square Footage:
10,000
Lot Size (sq. ft.):
51,218
Status:
Active
Current Price:
$29,500,000
List Date:
5/20/2026
Last Modified:
5/20/2026
Listing Details MLS# 619972
Location, Tax & Legal
- Street #
- 57783
- Street Name
- Morton
- Street Suffix
- Street
- Key/Island
- Marathon
- State/Province
- FL
- Zip Code
- 33050
- County
- Monroe
- Subdivision
- Crains Sub (58.0)
- Area
- 19 - Crawl Key & Grassy Key
- City
- MARATHON
- Mile Marker
- 58
- Marathon Neighborhood
- Grassy Key
- Senior Community YN
- No
- Side
- Bay/Gulf
- Flood Zone
- AE,AE,VE,VE
- Alternate Key #
- 1458074
- Parcel #
- 00375000-000000
- Zoning
- RM - Residential Medium
- Deed Restrictions
- No
- Legal
- BK 60 LOTS 20-21-22 CRAINS SUBD PB1-51 GRASSY KEY G70-134 OR519-1097 OR665-395 OR1137-1017 OR1261-496 OR1261-495 OR1314-
- Taxes
- 33507.82
- Tax Year
- 2025
- Pub Sewer HkUp
- No
Contract Information
- Listing Board
- Marathon/Lower Keys
General Property Description
- Realtor.COM Type
- Residential - Single Family
- Style
- Single Family
- Waterfront
- Yes
- Control Depth
- 4
- Pool
- Yes
- Year Built
- 2022
- Lot SqFt
- 51218
- Acres
- 3.07
- Living Apx SqFt
- 10000
- SqFt Source
- Builder/Architect
- Total Bedrooms
- 10
- Full Baths
- 11
- Half Baths
- 2
- Total Baths
- 13
- Floor Number
- 2
- Rentals Allowed
- No
- Total Units
- 0
Association Info
- Mandatory Home Owners Asc
- No
- 1st Right of Refusal
- No
- Association Fee $
- 0
Dockage
- Dock Length
- 100
- Dock
- Wood
- Seawall
- Cut/Natural
- Boat Lift
- Yes
- Boat Ramp
- Yes
More Information
Building Style
- Above Flood
- Unknown
- Stories
- 2 Stories
Vehicle Storage
- Car(s)
- 3
- Garage
- Yes
- Detached
- Yes
Appliances
- Other
- Other Appliances
- Dryer
- Yes
- Freezer
- Yes
- Ice Machine
- Yes
- Microwave
- Yes
- Oven
- Yes
- Refrigerator
- Yes
- Stainless Steel Appliance(s)
- Yes
- Washer
- Yes
Remarks & Misc
- Remarks – Consumer
- Newly Built Gulf-front Sanctuary with Panoramic Views, Guest and Pool Houses, Luxe Outdoor Living, and a Deepwater Navigable Dock. Set on 3 secluded acres+/- along one of the most protected stretches of the Gulf of America, 57783 Morton Street is a newly completed estate of rare scale, privacy, and modern coastal design. Surrounded by water, sandscape, and tidal ponds alive with marine life, the property offers more than 200'+/- of direct water frontage and uninterrupted views across the open Gulf. Completed in 2025 by builder and developer Alderuccio Corporation, this resilient, elevated retreat is constructed entirely of concrete and impact glass and is designed for effortless indoor-outdoor living. With three distinct finished living spaces totaling approximately 10,000 SF+/-, the estate functions as a private resort offering privacy, recreation, and exceptional access to the best of the Florida Keys. Though private and serene, the estate remains close to everything that defines Keys living. Dining, marinas, and shopping are less than ten minutes away, and the Florida Keys Marathon International Airport lies 4 miles+/- from the property for seamless private aviation access. Deepwater routes, snorkeling coves, and renowned fishing grounds are just moments from the protected 100' dock. The architecture emphasizes clarity, durability, and immersion in water and light. Walls of impact glass capture views of the Gulf, the bay, and the property's own tidal ponds, allowing natural light to animate the interiors throughout the day. Generous room proportions, ceiling heights of 10' to 12', and open circulation reinforce a sense of airiness and connection. Every finish, from porcelain flooring to quartzite counters and exterior of shell-stone, was selected for both resilience and refined coastal style. Smart home systems, solar power with battery backup, and integrated storm protection underscore a commitment to performance and longevity.
Fee Includes
- None
- Yes
Tax Exemptions
- None
- Yes
Pets
- Pets Allowed
- Yes
Cooling
- Ceiling Fans(s)
- Yes
- Central Air
- Yes
Heating
- Central
- Yes
- Electric
- Yes
- Solar
- Yes
Waterfront
- Gulf Front
- Yes
Waterview
- Bay/Gulf View
- Yes
Interior Features
- Built-in Cabinets
- Yes
- Elevator
- Yes
- Fireplace(s)
- Yes
- Walk-in Closet(s)
- Yes
Property Condition
- New Construction
- Yes
Specialty Rooms
- Gym
- Yes
- Laundry Room
- Yes
- Media Room
- Yes
- Sun/Florida Room
- Yes
- Other
- Yes
Windows/Doors
- Impact Rstnce Doors
- Yes
Construction
- Stucco
- Yes
Land Size
- 2 Less Than 5 Acres
- Yes
Utilities
- Municipal Sewer
- Yes
Porch/Balcony
- Deck
- Yes
- Open Porch/Balcony
- Yes
- Patio
- Yes
- Screened Patio
- Yes
Exterior Features
- Built-in Grill
- Yes
- Detached Guest Qtrs
- Yes
- Outdoor Shower
- Yes
- Sandy Beach
- Yes
Pool Info
- In Ground
- Yes
GF-Utilities
- Solar Panels
- Yes
Property Features
Fee Includes:
None
Tax Exemptions:
None
Waterfront:
Gulf Front
Waterview:
Bay/Gulf View
Dockage:
Boat Lift; Boat Ramp
Property Condition:
New Construction
Vehicle Storage:
Garage; Detached
Cooling:
Ceiling Fans(s); Central Air
Heating:
Central; Electric; Solar
Utilities:
Municipal Sewer
Interior Features:
Built-in Cabinets; Elevator; Fireplace(s); Walk-in Closet(s)
Specialty Rooms:
Gym; Laundry Room; Media Room; Sun/Florida Room; Other
Appliances:
Dryer; Freezer; Ice Machine; Microwave; Oven; Refrigerator; Stainless Steel Appliance(s); Washer
Exterior Features:
Built-in Grill; Detached Guest Qtrs; Outdoor Shower; Sandy Beach
Pool Info:
In Ground
Construction:
Stucco
Pets:
Pets Allowed
Land Size:
2 Less Than 5 Acres
GF-Utilities:
Solar Panels
Room Information
| Room Name | Level | Remarks |
|---|---|---|
| Other Room | Basement | Main Residence - Professional Gym |
| Other Room | Basement | Main Residence - Covered Patio with Aquarium |
| Full Bathroom | Basement | Main Residence |
| Bedroom 1 | Main | Main Residence - Primary Bedroom with walk-in closet, Balcony & Outdoor Shower |
| Full Bathroom | Main | Main Residence - With Watercloset |
| Other Room | Main | Main Residence - Office |
| Other Room | Main | Main Residence - Laundry Room |
| Other Room | Main | Main Residence - Butler's Pantry with Walk-In Closet |
| Living Room | Main | Main Residence - With Balcony Access |
| Half Bathroom | Main | Main Residence - Attached to LR |
| Bedroom 2 | Main | Main Residence - With En-Suite Bath |
| Full Bathroom | Main | Main Residence - En-Suite |
| Bedroom 3 | Main | Main Residence - With En-Suite Bath |
| Full Bathroom | Main | Main Residence - En-Suite |
| Bedroom 4 | Main | Main Residence - With En-Suite Bath |
| Full Bathroom | Main | Main Residence - En-Suite |
Listing Office:
Bespoke Real Estate
Last Updated: May - 20 - 2026
The data relating to real estate for sale on this web site comes in part from the Florida Keys MLS, Inc. Information provided is deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commeral use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. IDX data is deemed reliable but is not guaranteed accurate by the MLS.