6500-6600 Overseas Highway, Marathon, FL 33050 (MLS# 610643)

6500-6600 Overseas Highway, Marathon, FL 33050

$9,950,000

Property Type: Residential Bedrooms: 6 Baths: 11 Square Footage: 10,852 Lot Size (sq. ft.): 168,141 Status: Active

Current Price: $9,950,000 List Date: 7/02/2024 Last Modified: 2/11/2026

Overview

Description

Casa Mañana Shores, located in the heart of Marathon, is a developer's dream or a private owner's potential paradise. This secured gulf front estate offers 3.86 acres of land and is surrounded by an eight foot concrete wall with three gated entrances. The property boasts approximately 540 linear feet of Highway frontage and 695 linear feet of water frontage. It offers 218 feet of concrete seawall, including a cut-in protected boat slip. There is even room for a helicopter landing pad to be installed. This unique property is zoned mixed-use commercial and comes with one commercial transferable building right. It is currently a private residence with a separate garage and workshop. The 10,852 square foot mansion is solid concrete construction. It has ten bedrooms, six and a half bathrooms, a sauna, game room and great room. Repairs are needed, and the interior needs significant updating. An attached partially screened enclosure holds an impressive 12 ft deep swimming pool that measures ... (Read more)

Listing Details MLS# 610643

Location, Tax & Legal

Street #: 6500-6600
Street Name: Overseas
Street Suffix: Highway
Key/Island: Marathon
State/Province: FL
Zip Code: 33050
County: Monroe
Subdivision: Casa Manana Shores (50.5)
Area: 15 - Sombrero Bch Rd to Vaca Cut Gulfside
City: MARATHON
Off Shore Island: No
Mile Marker: 50.5
Marathon Neighborhood: Mid-Town - Gulf (Sombrero to Airport)
Side: Bay/Gulf
Flood Zone: AE,AE,AE,AE,VE,VE
Alternate Key #: 1120855
Parcel #: 00103540-000000
Zoning: MU - Mixed Use Commercial Mixed Use
Deed Restrictions: Unknown
Legal: 11 66 32 KEY VACCAS PT LOT 1 AND PT LOT 1 (OLD S/R 4-A) AND LOTS 10 AND11 CASA MANANA SHORES PB2-50
Taxes: 20125.66
Tax Year: 2023
Pub Sewer HkUp: Yes

Contract Information

Listing Board: Marathon/Lower Keys
As is Rght to Inspct: Yes
Species List: Yes

General Property Description

Realtor.COM Type: Residential - Single Family
Style: Single Family
Waterfront: Yes
Control Depth: 4
Pool: Yes
Year Built: 1967
Lot SqFt: 168141
Lot Sqft Source: Property Data Card
Acres: 3.86
Living Apx SqFt: 10852
SqFt Source: Tax Records
Total Bedrooms: 6
Full Baths: 10
Half Baths: Yes
Total Baths: 11
Rentals Allowed: With Restrictions
Min Rental Days: 7
Total Units: 0

Association Info

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

Dockage

Dock Length: 218
Dock: Concrete
Seawall: Concrete
Basin: Yes
Boat Slip: Yes

More Information

Building Style

Above Flood: Unknown
Stories: 2 Stories

Pool Info

Dimensions: 25 x 50
In Ground: Yes
Concrete: Yes
Decked: Yes

Remarks & Misc

Remarks – Consumer: Casa Mañana Shores, located in the heart of Marathon, is a developer's dream or a private owner's potential paradise. This secured gulf front estate offers 3.86 acres of land and is surrounded by an eight foot concrete wall with three gated entrances. The property boasts approximately 540 linear feet of Highway frontage and 695 linear feet of water frontage. It offers 218 feet of concrete seawall, including a cut-in protected boat slip. There is even room for a helicopter landing pad to be installed. This unique property is zoned mixed-use commercial and comes with one commercial transferable building right. It is currently a private residence with a separate garage and workshop. The 10,852 square foot mansion is solid concrete construction. It has ten bedrooms, six and a half bathrooms, a sauna, game room and great room. Repairs are needed, and the interior needs significant updating. An attached partially screened enclosure holds an impressive 12 ft deep swimming pool that measures 25 x 50 ft. The garage/workshop is a separate structure with two rooms with a mini split air conditioner. The existing structures could be demolished for those with a vision, leaving you with a 3.86 acre blank canvas in the center of town. Its versatile zoning designation offers multiple possibilities for residential and/or commercial use. Over the years it has previously housed a motel with a marina, a 19-unit trailer park, and a restaurant. This property presents the opportunity to create the ultimate secluded retreat of your dreams!
Directions: Located Gulfside at MM 50.5. Concrete wall with three gated entrances. Use far west entrance.

Fee Includes

None: Yes

Tax Exemptions

Homestead: Yes

Appliances

Dryer: Yes
Oven: Yes
Range: Yes
Refrigerator: Yes
Washer: Yes

Pets

Pets Allowed: Yes

Cooling

Central Air: Yes

Heating

Central: Yes
Fireplace(s): Yes
Forced Air: Yes

Waterfront

Bay Front: Yes
Gulf Front: Yes
Open Water: Yes

Waterview

Bay/Gulf View: Yes
Open Water View: Yes

Property Condition

Fixer Upper: Yes

Specialty Rooms

Sauna/Steam Room: Yes

Vehicle Storage

Garage: Yes
Guest Parking: Yes
Open Parking: Yes
RV Parking Open: Yes
Detached: Yes
Off Street Parking: Yes
Trailer Storage: Yes

Security

Electric Gate: Yes
Patrolled Area: Yes

Construction

CBS: Yes
Concrete: Yes

Land Size

2 Less Than 5 Acres: Yes

Furnished

Negotiable: Yes

Terms

Cash: Yes
Conventional: Yes

Utilities

Elect Separate Meter: Yes
FKAA: Yes
Municipal Sewer: Yes
Water Separate Meter: Yes

Porch/Balcony

Patio: Yes

Title

Title Ins - Buyer: Yes

Exterior Features

Outdoor Shower: Yes
Privacy Wall/Fence: Yes
Storage: Yes

Roof

Concrete Roof: Yes

Property Features

Fee Includes: None Tax Exemptions: Homestead Waterfront: Bay Front; Gulf Front; Open Water Waterview: Bay/Gulf View; Open Water View Dockage: Basin; Boat Slip Property Condition: Fixer Upper Vehicle Storage: Garage; Detached; Guest Parking; Off Street Parking; Open Parking; RV Parking Open; Trailer Storage Furnished: Negotiable Cooling: Central Air Heating: Central; Fireplace(s); Forced Air Utilities: Elect Separate Meter; FKAA; Municipal Sewer; Water Separate Meter Specialty Rooms: Sauna/Steam Room Appliances: Dryer; Oven; Range; Refrigerator; Washer Exterior Features: Outdoor Shower; Privacy Wall/Fence; Storage Pool Info: In Ground; Concrete; Decked Construction: CBS; Concrete Roof: Concrete Roof Pets: Pets Allowed Security: Electric Gate; Patrolled Area Land Size: 2 Less Than 5 Acres Terms: Cash; Conventional Title: Title Ins - Buyer

Listing Office: Ocean Sotheby's International Relaty

Last Updated: February - 11 - 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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