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524 Warren Ln
Key Biscayne FL 33149 US

$3,850,000

Active Listing ID A11999112
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5 bed
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4.00 Bath (4 Full)
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Single Family Residence

$3,850,000

Active Listing ID A11999112
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524 Warren Ln Located in one of the most exclusive residential pockets of Key Biscayne, surrounded by multi-million-dollar estates, this beautifully designed 5-bedroom, 4 full bathroom home offers the perfect balance of privacy, functionality, and tropical lifestyle. The layout is thoughtfully distributed with a private primary suite on one side, a separate nanny/guest suite with its own bathroom, and a dedicated wing for the children’s bedrooms—ideal for both family living and entertaining. Just steps from top-rated schools and only 10 minutes from the beach, the property features a stunning outdoor space with a resort-style pool and a charming tiki bar, creating the ultimate South Florida oasis. A rare opportunity to own in a highly sought-after neighborhood where surrounding homes reach $10M+.

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Property Features

  • Facts
  • Property Type: Residential
  • Property Sub-type: Single Family Residence
  • Features
  • Full Bathrooms: 4
  • Cooling System: Ceiling Fan(s), Central Air
  • Exterior Finish: Barbecue, Fence, Lighting, Patio, Storm/Security Shutters
  • Floor Covering: Concrete
  • Roof Type: Barrel
  • Heating Fuels: Central
  • Additional Features
  • Patio

School Information

  • School
  • Keybiscayne(Elementary)
  • Ponce De Leon(MiddleSchool)
  • Coral Gables(HighSchool)

Property

  • propertytype: Residential
  • propertysubtype: Single Family Residence
  • listprice: 3850000
  • unparsedaddress: 524 Warren Ln
  • postalcity: Key Biscayne
  • stateorprovince: FL
  • country: US
  • postalcode: 33149
  • bathroomsfull: 4
  • bathroomshalf: 0
  • bathroomsonequarter: 0
  • bathroomsthreequarter: 0
  • lotsizeunits: Acres
  • livingarea: 2700
  • livingareaunits: Square Feet
  • listagentfullname: Fabrice Ernandes
  • listagentemail: info@fabriceernandes.com
  • listagentkey: 3yd-MAORFL-3427417
  • listagentmlsid: 3427417
  • listagentpreferredphone: 7866030184
  • listagentofficephone: 6464807665
  • listofficekey: 3yd-MAORFL-SHTF01
  • listagentstatelicense: 3427417
  • listofficemlsid: SHTF01
  • disclaimer: Copyright © 2026 Miami 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: MAORFL
  • yearbuilt: 1950
  • listagenturl: https://serhant.com/
  • countyorparish: Miami-Dade
  • parcelnumber: 24-42-32-004-0220
  • elementaryschool: Keybiscayne
  • highschool: Coral Gables
  • appliances: Dishwasher, Dryer, Ice Maker, Microwave, Range, Washer
  • cooling: Ceiling Fan(s), Central Air
  • constructionmaterials: Block, Concrete
  • flooring: Concrete
  • heating: Central
  • fireplaceyn: False
  • transactiontype: ForSale
  • storiestotal: 0
  • parkingtotal: 0
  • parkingfeatures: Driveway, Garage, Golf Cart
  • roof: Barrel
  • waterfrontyn: False
  • interiorfeatures: Bidet, Bedroom On Main Level, Dining Area, Separate/Formal Dining Room, Dual Sinks, Central Vacuum
  • exteriorfeatures: Barbecue, Fence, Lighting, Patio, Storm/Security Shutters
  • architecturalstyle: Other
  • rooms: Bathroom 1, Bathroom 2, Bathroom 3, Bathroom 4, Bedroom 1, Bedroom 2, Bedroom 3, Bedroom 4, Bedroom 5
  • patioandporchfeatures: Patio
  • dock: False
  • poolprivateyn: False
  • spayn: False
  • fencing: Fenced
  • internetaddressdisplayyn: True
  • internetautomatedvaluationdisplayyn: False
  • internetconsumercommentyn: False
  • customfields: {"AdditionalInformation":{}, "AlternatePrices":[], "BrokerName":"Serhant Florida LLC", "BuilderEmail":null, "BuilderFax":null, "BuilderPhone":null, "City":null, "Country":null, "Expenses":[], "GeocodeOptions":null, "LeadRoutingEmail":"info@fabriceernandes.com", "ListBrokerageCity":"New York", "ListBrokerageCountry":"US", "ListBrokerageEmail":"hello@serhant.com", "ListBrokerageLogoUrl":null, "ListBrokerageName":"Serhant Florida LLC", "ListBrokeragePhone":"(646) 480-7665", "ListBrokeragePostalCode":"10012", "ListBrokerageStateOrProvince":"NY", "ListBrokerageUnitNumber":null, "ListBrokerageUnparsedAddress":"372 W Broadway", "ListBrokerageWebsiteUrl":"https://serhant.com/", "ListOfficeAddress1":"3390 Mary Street, Suite 116", "ListOfficeAddress2":null, "ListOfficeBrokerMlsId":"3531009", "ListOfficeCity":"Coconut Grove", "ListOfficeCountry":"US", "ListOfficeEmail":"helloflorida@serhant.com", "ListOfficePostalCode":"33133", "ListOfficeStateOrProvince":"FL", "ListPriceCurrencyType":"USD", "ListingTitle":"Single Family Residence, Other - Key Biscayne, FL", "ListingURL":"https://www.realtor.com/realestateandhomes-detail/524-Warren-Ln_Key-Biscayne_FL_33149_M60710-77243?f=listhub&s=MAORFL&m=A11999112&c=rexren", "MLSModificationTimestamp":"2026-04-12T00:00:45Z", "Neighborhoods":[], "PostalCode":null, "RawPropertySubType":"Single Family Residence", "RawPropertyType":"Residential", "RoomCount":null, "StateOrProvince":null, "Taxes":[{"TaxAnnualAmount":22265, "TaxDescription":null, "TaxYear":"2025"}], "UnitNumber":null, "UnparsedAddress":null}
Listing Changed: 4/13/2026 11:09:04 AM GMT
Source Updated Date: 4/14/2026 6:54:46 PM GMT

Courtesy of: Fabrice Ernandes, Serhant, info@fabriceernandes.com

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