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8403 Gulf Of Mexico Boulevard # 403, Marathon, FL 33050

New Listing
$1,699,000
Property Type: Residential Bedrooms: 2 Baths: 2 Square Footage: 2,004 Status: Active
Current Price: $1,699,000 List Date: 3/22/2026 Last Modified: 3/22/2026

Description

Welcome to 8403 Gulf of Mexico Blvd Marathon, Florida in exclusive Seawatch Condominiums. This one-of-a-kind, customized penthouse condo boasts only the best views and comes with a 40' boat slip equipped with a 30k lb. lift. This residence was renovated down to the concrete, offering unparalleled luxury and sophistication. Just stepping into the unit you will be captivated as the expansive windows bring sweeping views of both the Atlantic and the Gulf into the space. Custom touches to the living space include: custom wood paneling lining the open living space, a unique wood paneled office/lounge, hard wired Lutron blinds, custom cherry cabinetry, top-of-the-line stainless steel appliances, Sonos speakers throughout, river reclaimed Dade county pine flooring throughout, impeccable stone work in the bathrooms and all within an spacious open floor style living area. Seawatch offers an array of amenities such as: securely gated entrance, a fully-equipped gym, a large on-site storage barn, ample space to store your boat and RV, newly renovated resort sized pool, spa and cabana, club house, tennis and pickle ball courts, lush tropical landscaping and gardens and marina offering protective dockage.

More Information MLS# 619154

Contract Information

Current Price: $1,699,000 Listing Date: 2026-03-18 Listing Board: Marathon/Lower Keys List Price: $1,699,000 As is Rght to Inspct: Yes Potential Short Sale: No Bank Owned: No Species List: No

Location Tax Legal

Street #: 8403 Street Name: Gulf Of Mexico Street Suffix: Boulevard Key/Island: Marathon State/Province: FL Zip Code: 33050 County: Monroe Subdivision: Seawatch (53.5) Area: 16 - Sombrero Bch Rd to Vaca Cut - Oceanside

General Property Description

Realtor.COM Type: Residential - Condo/Townhouse Style: Condo Waterfront: Yes Control Depth: 4 Unit/Complex: Unit Pool: Yes Year Built: 1983 Total Units: 48 Lot Sqft Source: Property Data Card Living Apx SqFt: 2004 SqFt Source: Property Data Card Total Bedrooms: 2 Full Baths: 2 Total Baths: 2 Floor Number: 4 Rentals Allowed: With Restrictions Min Rental Days: 30

Status Change Info

Status: Active

Association Info

Mandatory Home Owners Asc: Yes Condo Doc's: Yes 1st Right of Refusal: Yes Association Fee $: 6464.37 Assoc/Mnt Fee Per: Quarterly

Dockage

Dock Length: 40 Dock: Concrete Seawall: Concrete

Building Style

Above Flood: Yes Stories: 4 Stories

Vehicle Storage

Car(s): 1

Pool Info

Heated: Yes

Financial Status

Auction: No Bank Owned: No Potential Short Sale: No Standard Sale: Yes

Property Features

Fee Includes: Bldg Exterior Mnt; Building Insurance; Common Area Mnt; Exterminating; Security Tax Exemptions: None Waterfront: Bay Front; Gulf Front; Open Water Waterview: Bay/Gulf View; Ocean View; Open Water View Dockage: Boat Lift Property Condition: Updated/Remodeled Vehicle Storage: Covered Parking; Guest Parking Furnished: Negotiable Cooling: Ceiling Fans(s); Central Air Heating: Central Utilities: Cable Available; Elect Separate Meter; FKAA; Municipal Sewer Interior Features: Built-in Cabinets; Drapes/Blinds Incl; Elevator; Quartz Countertops; Split Bedroom; Storage; Walk-in Closet(s); Window Treatments Pre-Wired: Cable Appliances: Dishwasher; Dryer; Microwave; Oven; Range; Refrigerator; Stainless Steel Appliance(s); Washer; Wine Cooler Exterior Features: Bar; Fencing; Storage; Tennis Court(s) Pool Info: In Ground; Concrete Construction: CBS Floor: Marble; Wood Roof: Concrete Roof Pets: Pets Allowed Neighborhood Feature: Clubhouse; Community Pool; Manager on Premises; Tennis Courts Security: Electric Gate; Secured Building Land Size: 10 or more Acres Terms: Cash; Conventional Title: Title Ins - Buyer
Listing Office: Berkshire Hathaway HomeServices Keys Real Estate
Last Updated: March - 22 - 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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