• Home
  • 57783 Morton Street, Marathon, FL 33050 (MLS# 619972)

57783 Morton Street, Marathon, FL 33050

New Listing
$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

Description

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.

More Information MLS# 619972

Contract Information

Listing Board: Marathon/Lower Keys Current Price: $29,500,000 Listing Date: 2026-05-20 List Price: $29,500,000

Location, Tax & Legal

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 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

General Property Description

Realtor.COM Type: Residential - Single Family Waterfront: Yes Control Depth: 4 Lot Size: 60 X 725 Lot SqFt: 51218 Pool: Yes Total Units: 0 Acres: 3.07 SqFt Source: Builder/Architect Rentals Allowed: No Floor Number: 2 Style: Single Family Year Built: 2022 Living Apx SqFt: 10000 Total Bedrooms: 10 Full Baths: 11 Half Baths: 2 Total Baths: 13

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.

Association Info

Mandatory Home Owners Asc: No 1st Right of Refusal: No Association Fee $: 0

Fee Includes

None: 1

Dockage

Dock Length: 100 Dock: Wood Boat Lift: 1 Boat Ramp: 1 Seawall: Cut/Natural

Tax Exemptions

None: 1

Appliances

Dryer: 1 Freezer: 1 Ice Machine: 1 Microwave: 1 Oven: 1 Refrigerator: 1 Stainless Steel Appliance(s): 1 Washer: 1 Other: Other Appliances

Pets

Pets Allowed: 1

Cooling

Ceiling Fans(s): 1 Central Air: 1

Heating

Central: 1 Electric: 1 Solar: 1

Waterfront

Gulf Front: 1

Waterview

Bay/Gulf View: 1

Interior Features

Built-in Cabinets: 1 Elevator: 1 Fireplace(s): 1 Walk-in Closet(s): 1

Property Condition

New Construction: 1

Specialty Rooms

Gym: 1 Laundry Room: 1 Media Room: 1 Sun/Florida Room: 1 Other: 1

Building Style

Above Flood: Unknown Stories: 2 Stories

Windows/Doors

Impact Rstnce Doors: 1

Vehicle Storage

Car(s): 3 Garage: 1 Detached: 1

Construction

Stucco: 1

Land Size

2 Less Than 5 Acres: 1

Utilities

Municipal Sewer: 1

Porch/Balcony

Deck: 1 Open Porch/Balcony: 1 Patio: 1 Screened Patio: 1

Exterior Features

Built-in Grill: 1 Detached Guest Qtrs: 1 Outdoor Shower: 1 Sandy Beach: 1

Pool Info

In Ground: 1

GF-Utilities

Solar Panels: 1

Status Change Info

Status: Active

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

Other Room Level: Basement Remarks: Main Residence - Professional Gym Other Room Level: Basement Remarks: Main Residence - Covered Patio with Aquarium Full Bathroom Level: Basement Remarks: Main Residence Bedroom 1 Level: Main Remarks: Main Residence - Primary Bedroom with walk-in closet, Balcony & Outdoor Shower Full Bathroom Level: Main Remarks: Main Residence - With Watercloset Other Room Level: Main Remarks: Main Residence - Office Other Room Level: Main Remarks: Main Residence - Laundry Room Other Room Level: Main Remarks: Main Residence - Butler's Pantry with Walk-In Closet Living Room Level: Main Remarks: Main Residence - With Balcony Access Half Bathroom Level: Main Remarks: Main Residence - Attached to LR Bedroom 2 Level: Main Remarks: Main Residence - With En-Suite Bath Full Bathroom Level: Main Remarks: Main Residence - En-Suite Bedroom 3 Level: Main Remarks: Main Residence - With En-Suite Bath Full Bathroom Level: Main Remarks: Main Residence - En-Suite Bedroom 4 Level: Main Remarks: Main Residence - With En-Suite Bath Full Bathroom Level: Main Remarks: 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.

Let’s Connect

      Sign Up for Listing Alerts