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  • 58550 Overseas Highway, Marathon, FL 33050 (MLS# 621552)

58550 Overseas Highway, Marathon, FL 33050

New Listing
$3,695,000
Property Type: Vacant Land Lot Size (sq. ft.): 18,800 Status: Active
Current Price: $3,695,000 List Date: 10/08/2026 Last Modified: 10/08/2026

Overview

Description

OCEANFRONT NEW CONSTRUCTION on Grassy Key in Marathon! Construction is anticipated to begin at the beginning of 2027. An exceptional opportunity to own a stunning contemporary residence overlooking the Atlantic Ocean. Situated on a 60' wide oceanfront lot, this thoughtfully designed home will offer 5 bedrooms, 4.5 bathrooms, spacious open-concept living areas, and an abundance of outdoor space to enjoy the Florida Keys lifestyle. Featuring modern coastal architecture, expansive windows, generous covered porches, and multiple balconies, the home is designed to embrace its beautiful oceanfront setting. Highlights include an open-concept design seamlessly connects the spacious kitchen, dining area, and great room. Expansive covered porches extend the living area outdoors, offering plenty of room to relax, dine, and enjoy the ocean breeze. Additional highlights include an elevator, generous garage and storage space, and a swimming pool. For those looking to create their own coastal retr ...

Listing Details MLS# 621552

Location, Tax & Legal

Street #
58550
Street Name
Overseas
Street Suffix
Highway
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
Side
Ocean
Flood Zone
VE,AE,AE,VE
Alternate Key #
1450120
Parcel #
00366950-000000
Zoning
RM - Residential Medium
Deed Restrictions
Unknown
Legal
BK 1 LT 16 CRAINS SUBD PB1-51 OF GRASSY KEY PT SECS 24-25-26 TWP 65S R 33E OR199-307/08 OR1614-617/18R/S OR1614-619/21/A
Taxes
3820.69
Tax Year
2025

Contract Information

Listing Board
Florida Keys
ROGO Exempt
Yes
Limited Representation
No
Potential Short Sale
No
Bank Owned
No

General Property Description

Realtor.COM Type
Vacant Land
Waterfront
Yes
Control Depth
Yes
Lot Dimensions
60 X 355
Lot SqFt
18800
Lot Sqft Source
Property Data Card

Miscellaneous Info

Mobile Home Lot
No

Financial Status

Bank Owned
No
Potential Short Sale
No

More Information

Remarks & Misc

Remarks – Consumer
OCEANFRONT NEW CONSTRUCTION on Grassy Key in Marathon! Construction is anticipated to begin at the beginning of 2027. An exceptional opportunity to own a stunning contemporary residence overlooking the Atlantic Ocean. Situated on a 60' wide oceanfront lot, this thoughtfully designed home will offer 5 bedrooms, 4.5 bathrooms, spacious open-concept living areas, and an abundance of outdoor space to enjoy the Florida Keys lifestyle. Featuring modern coastal architecture, expansive windows, generous covered porches, and multiple balconies, the home is designed to embrace its beautiful oceanfront setting. Highlights include an open-concept design seamlessly connects the spacious kitchen, dining area, and great room. Expansive covered porches extend the living area outdoors, offering plenty of room to relax, dine, and enjoy the ocean breeze. Additional highlights include an elevator, generous garage and storage space, and a swimming pool. For those looking to create their own coastal retreat, the oceanfront lot is also available for purchase separately for $895,000 prior to the start of construction. The adjacent oceanfront lot is also available for sale, offering the rare opportunity to combine both properties for a total of 120' of Atlantic Ocean frontage! Images are architectural renderings of the proposed residence. Final plans, features, and specifications are subject to change.
Directions
Right off the highway on Grassy Key - oceanside

Assoc/Misc Info

Mandatory Home Owners Asc
No
1st Right of Refusal
No

Dockage

None
Yes

Tax Exemptions

None
Yes

Waterfront

Oceanfront
Yes

Waterview

Ocean View
Yes

BuildingPermit

Active Permit
Yes
Other Permit
Yes

Land Size

1/4 - 1/2 Acre
Yes

Title

Title Ins - Buyer
Yes

Property Features

Tax Exemptions: None Waterfront: Oceanfront Dockage: None Waterview: Ocean View BuildingPermit: Active Permit; Other Permit Land Size: 1/4 - 1/2 Acre Title: Title Ins - Buyer
Listing Office: Coastal Realty of the Florida Keys
Last Updated: October - 08 - 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.

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