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770 9TH STREET
KEY COLONY BEACH FL 33051 US

$3,850,000

Active Listing ID OM719377
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4 bed
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4.00 Bath (3 Full , 1 Half)
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Lot: 0.25 Acres
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Single Family Residence

$3,850,000

Active Listing ID OM719377
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770 9TH STREET Rare opportunity to own this corner bay front 4 bedroom 3.5 bath home in the loved neighborhood of Key Colony Beach located in Marathon! This home is newly renovated with one of the best views to sit back relax and enjoy the boats going by or having quick access to the Atlantic Ocean for optimal fishing, lobstering, diving, and stunning views on the boat. With plenty of deep water and a 60 ft dock with a 20, 000-pound boatlift, water and electric at the dock, and fish cleaning station, everything is ready to go for all your boating needs. But when it's time to relax enjoy the oasis of the pool that can be cooled for the summer or if you're wanting to escape a cold winter to the keys the pool can also be heated. Featuring inside there are 2 living rooms, a stunning kitchen, and custom wood stairs to go upstairs to the bedrooms, the primary has its own split stairs to its side for great privacy. There is also a mini primary bedroom with its own bathroom along with his and her closest. The property has been a very successful six figure earning rental when it is not being utilized by the owners. Having a 2 car garage, 4 car fitting driveway, and space to the left of the driveway for a boat trailer there is plenty of parking for guest and friends to come enjoy the stunning view and atmosphere of this property!

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Property Features

  • Facts
  • Lot Size: 0.25 Acres
  • Property Type: Residential
  • Property Sub-type: Single Family Residence
  • Features
  • Full Bathrooms: 3
  • 1/2 Bathrooms: 1
  • Cooling System: Central Air
  • Exterior Finish: Corner Lot, Paved, Private Yard, Pool, Dock
  • Floor Covering: Tile, Vinyl
  • Roof Type: Tile
  • Heating Fuels: Electric (Heating)
  • Additional Features
  • Pool
  • Waterfront

Property

  • propertytype: Residential
  • propertysubtype: Single Family Residence
  • listprice: 3850000
  • unparsedaddress: 770 9TH STREET
  • postalcity: KEY COLONY BEACH
  • stateorprovince: FL
  • country: US
  • postalcode: 33051
  • bathroomsfull: 3
  • bathroomshalf: 1
  • bathroomsonequarter: 0
  • bathroomsthreequarter: 0
  • lotsizeacres: 0.25
  • lotsizeunits: Acres
  • lotsizearea: 0.25
  • livingarea: 3381
  • livingareaunits: Square Feet
  • latitude: 24.72657
  • longitude: -81.023233
  • listagentfullname: Kim Hiers
  • listagentemail: kshidler@kw.com
  • listagentkey: 3yd-MFRMLSFL-271515469
  • listagentmlsid: 271515469
  • listagentpreferredphone: 3525864539
  • listagentofficephone: 3523694044
  • listofficekey: 3yd-MFRMLSFL-55906
  • listagentstatelicense: 3416698
  • listofficemlsid: 55906
  • disclaimer: Copyright © 2026 Stellar MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
  • sourcesystemid: MFRMLSFL
  • yearbuilt: 1993
  • listingcontractdate: 2026-02-21
  • countyorparish: Monroe
  • parcelnumber: 00075110-000000
  • appliances: Dishwasher, Dryer, Ice Maker, Microwave, Refrigerator, Washer
  • cooling: Central Air
  • constructionmaterials: Stucco
  • flooring: Tile, Vinyl
  • heating: Electric (Heating)
  • fireplaceyn: False
  • transactiontype: ForSale
  • storiestotal: 0
  • parkingtotal: 0
  • parkingfeatures: Garage, Garage - Attached
  • roof: Tile
  • waterfrontyn: True
  • franchiseaffiliation: Keller Williams Realty
  • interiorfeatures: Primarybedroom Upstairs, Stone Counters, Thermostat, Walk-in Closet(s)
  • exteriorfeatures: Corner Lot, Paved, Private Yard, Pool, Dock
  • waterfrontfeatures: Waterfront
  • architecturalstyle: Other
  • rooms: Bathroom 1, Bathroom 2, Bathroom 3, Bathroom 4, Bedroom 1, Bedroom 2, Bedroom 3, Bedroom 4, Kitchen, Living Room
  • structuretype: Dock
  • dock: True
  • poolprivateyn: True
  • spayn: False
  • internetaddressdisplayyn: True
  • internetautomatedvaluationdisplayyn: True
  • internetconsumercommentyn: True
  • location: -81.02323, 24.72657
  • customfields: {"AdditionalInformation":{}, "AlternatePrices":[], "BrokerName":"Keller Williams Cornerstone Realty", "BuilderEmail":null, "BuilderFax":null, "BuilderPhone":null, "City":null, "Country":null, "Expenses":[], "GeocodeOptions":null, "LeadRoutingEmail":"kshidler@kw.com", "ListBrokerageCity":"Ocala", "ListBrokerageCountry":"US", "ListBrokerageEmail":"klrw107@kw.com", "ListBrokerageLogoUrl":"http://brokerlogos.listhub.net/MFRMLSFL/4f0ae521327611e2a6a012313932fb37/20200318195408377.png", "ListBrokerageName":"Keller Williams Cornerstone Realty", "ListBrokeragePhone":"(352) 369-4044", "ListBrokeragePostalCode":"34471", "ListBrokerageStateOrProvince":"FL", "ListBrokerageUnitNumber":null, "ListBrokerageUnparsedAddress":"1918 SE 17th Street", "ListBrokerageWebsiteUrl":null, "ListOfficeAddress1":"1918 SE 17 Street", "ListOfficeAddress2":null, "ListOfficeBrokerMlsId":null, "ListOfficeCity":"Ocala", "ListOfficeCountry":"US", "ListOfficeEmail":"klrw107@kw.com", "ListOfficePostalCode":"34471", "ListOfficeStateOrProvince":"FL", "ListPriceCurrencyType":"USD", "ListingTitle":"Single Family Residence - KEY COLONY BEACH, FL", "ListingURL":"https://www.realtor.com/realestateandhomes-detail/770-9th-St_Key-Colony_FL_33051_M56493-32302?f=listhub&s=MFRMLSFL&m=OM719377&c=rexren", "MLSModificationTimestamp":"2026-02-23T21:37:11Z", "Neighborhoods":[], "PostalCode":null, "RawPropertySubType":"Single Family Residence", "RawPropertyType":"Residential", "RoomCount":3, "StateOrProvince":null, "Taxes":[{"TaxAnnualAmount":14704.27, "TaxDescription":null, "TaxYear":"2025"}], "UnitNumber":null, "UnparsedAddress":null}
Listing Changed: 2/24/2026 4:09:44 AM GMT
Source Updated Date: 2/27/2026 12:54:41 PM GMT

Courtesy of: Kim Hiers, KELLER WILLIAMS CORNERSTONE RE, kshidler@kw.com

Copyright © 2026 Stellar MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.