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8403 Gulf Of Mexico Boulevard # 403
Marathon FL 33050 US

$1,595,000

Active Listing ID 619154
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2 bed
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2.00 Bath (2 Full)
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Condominium

$1,595,000

Active Listing ID 619154
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8403 Gulf Of Mexico Boulevard # 403 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.

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Property Features

  • Facts
  • Property Type: Residential
  • Property Sub-type: Condominium
  • Features
  • Full Bathrooms: 2
  • Cooling System: Central Air
  • Exterior Finish: Bar, Fencing, Storage, Tennis Court(s)
  • Floor Covering: Marble, Wood
  • Roof Type: Concrete
  • Heating Fuels: Central
  • Additional Features
  • Patio
  • Pool
  • Waterfront

Property

  • propertytype: Residential
  • propertysubtype: Condominium
  • listprice: 1595000
  • unparsedaddress: 8403 Gulf Of Mexico Boulevard
  • unitnumber: # 403
  • postalcity: Marathon
  • stateorprovince: FL
  • country: US
  • postalcode: 33050
  • bathroomsfull: 2
  • bathroomshalf: 0
  • bathroomsonequarter: 0
  • bathroomsthreequarter: 0
  • lotsizeunits: Acres
  • livingarea: 2004
  • livingareaunits: Square Feet
  • latitude: 24.733523
  • longitude: -81.029144
  • listagentfullname: The Owen Lucas Team
  • listagentemail: lynn@keyshomehunter.com
  • listagentkey: 3yd-MLKARFL-20201214161525784181000000
  • listagentmlsid: SL653995
  • listagentpreferredphone: 3053930559
  • listofficekey: 3yd-MLKARFL-20190103184115027399000000
  • listagentstatelicense: 653995
  • listofficemlsid: CQ1057298
  • disclaimer: Copyright © 2026 Marathon and Lower Keys Association of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
  • sourcesystemid: MLKARFL
  • yearbuilt: 1983
  • listingcontractdate: 2026-03-18
  • listagenturl: https://www.keysrealestate.com
  • countyorparish: Monroe
  • parcelnumber: 00104131003100
  • appliances: Washer, Dryer, Dishwasher, Refrigerator, Range, Oven, Microwave, Wine Cooler, Stainless Steel Appliance(s)
  • cooling: Central Air
  • constructionmaterials: CBS
  • flooring: Marble, Wood
  • heating: Central
  • numberofunitstotal: 48
  • fireplaceyn: False
  • transactiontype: ForSale
  • storiestotal: 4
  • parkingtotal: 0
  • roof: Concrete
  • view: Water, Ocean
  • waterfrontyn: True
  • franchiseaffiliation: Berkshire Hathaway HomeServices
  • interiorfeatures: Built-in Cabinets, Elevator, Storage, Walk-in Closet(s), Quartz Countertops
  • exteriorfeatures: Bar, Fencing, Storage, Tennis Court(s)
  • rooms: Bathroom 2, Bedroom 2, Bedroom 1, Bathroom 1
  • otherstructures: Storage
  • utilities: Cable Available
  • patioandporchfeatures: Porch
  • accessibilityfeatures: Accessible Elevator Installed
  • dock: False
  • poolprivateyn: True
  • spayn: False
  • fencing: Fenced
  • internetaddressdisplayyn: True
  • internetautomatedvaluationdisplayyn: True
  • internetconsumercommentyn: True
  • location: -81.029144, 24.733522
  • customfields: {"AdditionalInformation":{}, "AlternatePrices":[], "BrokerName":"Berkshire Hathaway HomeServices Keys Real Estate", "BuilderEmail":null, "BuilderFax":null, "BuilderPhone":null, "City":null, "Country":null, "CustomSourceId":null, "Expenses":[], "GeocodeOptions":null, "LeadRoutingEmail":"lynn@keyshomehunter.com", "ListBrokerageCity":"Marathon", "ListBrokerageCountry":"US", "ListBrokerageEmail":"info@keysrealestate.com", "ListBrokerageLogoUrl":null, "ListBrokerageName":"Berkshire Hathaway HomeServices Keys Real Estate", "ListBrokeragePhone":"(305) 743-7636", "ListBrokeragePostalCode":"33050", "ListBrokerageStateOrProvince":"FL", "ListBrokerageUnitNumber":null, "ListBrokerageUnparsedAddress":"9141 Overseas Highway", "ListBrokerageWebsiteUrl":"https://www.keysrealestate.com", "ListOfficeAddress1":"9141 Overseas Highway ", "ListOfficeAddress2":null, "ListOfficeBrokerMlsId":"20190103184115027399000000", "ListOfficeCity":"Marathon", "ListOfficeCountry":"US", "ListOfficeEmail":"will@keysrealestate.com", "ListOfficePostalCode":"33050", "ListOfficeStateOrProvince":"FL", "ListPriceCurrencyType":"USD", "ListingTitle":"CONDOS - Marathon, FL", "ListingURL":"https://www.realtor.com/realestateandhomes-detail/8403-Gulf-of-Mexico-Blvd-403_Marathon_FL_33050_M59266-98129?f=listhub&s=MLKARFL&m=619154&c=rexren", "MLSModificationTimestamp":"2026-04-10 18:45:08", "Neighborhoods":[{"Description":null, "Name":"Seawatch (53.5)"}], "PostalCode":null, "RoomCount":null, "StateOrProvince":null, "Taxes":[{"TaxAnnualAmount":8493, "TaxDescription":"Unit 403 Seawatch At Marathon-Phase I A Condominium Bldg 8 Or851-1004/05 Or1005-1675C/T Or1173-2137 Or1239-719 Or1644-73", "TaxYear":"2025"}], "UnitNumber":null, "UnparsedAddress":null}
Listing Changed: 5/21/2026 10:59:25 PM GMT
Source Updated Date: 5/26/2026 6:40:34 PM GMT

Courtesy of: The Owen Lucas Team, Berkshire Hathaway HomeServices Keys Real Estate, lynn@keyshomehunter.com

Copyright © 2026 Marathon and Lower Keys Association of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.