Condo in 6403 Gulf Of Mexico Boulevard 403, Marathon, FL 33050 for sale with MLS# A12033219

Welcome to your Marathon lifestyle package, a fully remodeled 3-bedroom, 2-bath Penthouse offering 1,902 SQFT of luxury coastal living.Rare opportunity includes a 24' boat with marina access w/lifts permitted, combining a move-in-ready residence w/boating lifestyle buyers dream of in the Florida Keys.Designed for comfort and entertaining, this top-floor residence features Versace & marble tile finishes, quartz countertops, New Kitchen & Stainless Steel appliances, New impact windows, 9-ft ceilings, wet bar, private parking, open-concept layout, and wraparound balcony, perfect for tropical breezes, morning coffee, and sunset cocktails.Spacious Primary suite offers balcony access, dual closets & spa-inspired bath w/soaking tub, glass-enclosed shower, makeup station & designer finishes.Enjoy direct marina access & your included 24' boat for fishing, cruising, island hopping & waterfront dining in the Keys.Amenities include covered warehouse storage for your water toys, Lagoon-style pool, jacuzzi, tennis & basketball courts, fitness center, and gated tropical grounds.All located in the heart of Marathon, minutes from Sombrero Beach, Coco Plum Beach, Marathon Airport, Turtle Hospital, Old Seven Mile Bridge & Best waterfront restaurants!World-class boating, fishing, snorkeling & breathtaking sunsets are right outside your door.More than just a Penthouse, this is your private escape, boating base, weekend retreat, future vacation home, and private piece of paradise!

📅 View days on the market

Days on the market

6403 Gulf Of Mexico Boulevard 403, Marathon, FL 33050

Price
Price:
$995,000.00
Original List Price:
$995,000.00
List Price per Sq Ft (Calculated, Approx.):
$523.13
Property Status and Type
Listing Type:
For Sale
Status:
Active
Listing Category:
Residential
Property Type:
Condominium
Description of Last Important Update:
New Listing
Last Major Update on:
June 8, 2026 4:00 am
Rooms Distribution
Bedrooms:
3
Bathrooms Total:
2
Full Bath:
2
Master Bedroom Bath:
Separate Shower, Whirlpool Tub, Dual Sinks, Separate Tub, Bedroom On Entry Level
Dining Area:
Snack Bar/counter, Dining/Living Room
Measures
Living Area:
1,902 Sqft
Built-Up Area:
1,602 Sqft
Property Features
View from the Property:
Pool, Ocean, Water, Direct Ocean
Waterfront:
Yes
Waterfront Features:
Ocean Access, Ocean Front, Seawall
Security:
Smoke Detector(s), Security Guard, Security Fence, Entry - Phone/intercom
Accessibility:
Accessible Elevator Installed
Appliances:
Dryer, Dishwasher, Microwave, Refrigerator, Washer, Electric Range
Interior:
High Ceilings
Exterior:
Balcony, Tennis Court(s)
Patio and Porch:
Porch, Porch - Wrap Around
Windows:
Blinds, Sliding
Green Energy Efficient:
Appliances
Air Conditioning
Air Conditioning System:
Central Air
Heating
Heating System:
Central
Boat and Dock Features:
Private Dock, Marina
Balcony Details:
Balcony - Open
Storm Protection Impact Glass:
Complete
Construction
Year Built:
1983
Architectural Style:
Other
Levels:
Two
Construction Materials:
Block
Flooring:
Tile
Number of stories:
4
Number of Units in the Community or Building:
48
Flood Zone Code:
AE
Taxes and Expenses
Tax Annual Amount:
$7,203.00
Tax Year:
2026
Association Fee:
$5,978.00
Association Fee Frequency:
Quarterly
Property Tax Details:
Tax Reflects No Exemptions
Parking
Garage Spaces:
0
Carport Spaces:
2
Covered Spaces:
2
Parking Features:
Guest
Carport
Utilities
Utilities Available:
Cable Available
Community
Association
Application Required
Application Fee:
$100.00
Application Information:
1-2 Weeks Approval
Association Type:
Condominium
Pets Allowed?:
Yes, Dogs Ok
Lease Number Times per Year Allowed:
365
Amenities Provided by the Homeowner's Association (HOA):
Heated Pool, Pool, Sauna, Spa/hot Tub, Bar, Clubhouse, Maintenance, Storage, Fitness Center, Picnic Area, Tennis Court(s), Basketball Court
Building Name:
6403
Subdivision Name:
SEAWATCH CONDOMINIUM
Association Fee Includes:
Common Areas
Senior Community:
No
Restrictions:
No Restrictions
Minimum Days per Lease:
1
Community Dock
Terms
Listing Terms Considered by Seller:
Cash, Conventional, FHA
Buyer Possession:
Negotiable
Zoning and Legal
Tax Legal Description:
SEAWATCH AT MARATHON PHASE III A CONDOMINIUM BLDG 6 UNIT 403 OR899-2314/16 OR1005-1715C/T OR1166-319/20 OR1183-212 OR1368-484 OR1743-1777 OR
Real Estate Folio Number (Parcel Number):
00104133003100
Public Schools Assigned
Elementary School:
Seminole Trails
High School:
Coral Shores
Middle Or Junior School:
Marathon
Listing History
Active on the market since:
June 8, 2026
Listing Agreement executed on:
June 8, 2026
Listing Status Last Changed On:
June 8, 2026 4:00 am
Photos updated on:
June 30, 2026 6:50 pm
Last Modified:
July 6, 2026 6:06 pm
Additional Information
Courtesy of:
Nations Best Realty, Inc.
Attribution:
Not provided
Location
Floor Number:
4
Street Name:
Gulf Of Mexico
Street Number:
6403
Unit Number:
403
City:
Marathon
State:
Florida
Zip Code:
33050
County:
Monroe
Latitude:
N24° 44' 2.6''
Longitude:
W82° 58' 12''
Street Suffix:
Boulevard
Property Map

Want to schedule an in-person or virtual tour? Have questions?

Want to schedule an in-person or virtual tour? Have questions?
Schedule a Tour or Ask a Question


Neighborhood Stats

Source: U.S. Census Bureau, ACS 5-Year Estimates

Median Household Income $83,243
Median Home Value $705,600
Median Rent $1,611/mo
Median Age 48
Population 10,586
Mortgage Calculator

Please note: Monthly HOA / Condo Fees Not Included. The calculator shows the listing price as home value. Update all fields at your convenience.

Calculate Your Mortgage Payment

$.00
$.00
6.5
30

Taxes and Insurance

$.00
$.00
%

Financial Analysis

%

%

$

$

$

$

$
Ver la Propiedad Ver la propiedad 6403 Gulf Of Mexico Boulevard 403, Marathon, FL 33050
Association of REALTORS®
Disclaimer: IDX listing information is presented by Rebonus Brokerage LLC for consumer informational purposes only. The information provided is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data is deemed reliable but is not guaranteed by the MLS or the real estate broker. This page presents structured listing information sourced directly from the MLS via the RESO Web API feed. Rebonus prioritizes maximum field coverage and data completeness, displaying the most granular MLS-provided attributes available.