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For sale
  • Price cut: $20K (6/16)
    $3,730,000

    524 Warren Ln, Key Biscayne, FL 33149

    5beds
    2,700sqft
    : 
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    Single Family Residence
    Built in 1950
    8,136 Square Feet Lot
    $-- Zestimate®
    $1,381/sqft
    $-- HOA

    What's special

    Resort-style poolStunning outdoor spaceCharming tiki barPrivate primary suite
    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+.
    75 days
    |
    525
    |
    24
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Fabrice Ernandes 786-603-0184,

    Serhant

    Source: MIAMI,MLS#: A11999112MLS LogoOriginating MLS: A-Miami Association of REALTORS

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      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 5
      • Bathrooms: 4
      • Full bathrooms: 4
      Rooms
      • Room types: Family Room
      Heating
      • Central
      Cooling
      • Ceiling Fan(s), Central Air
      Appliances
      • Included: Dishwasher, Dryer, Electric Water Heater, Ice Maker, Microwave, Electric Range, Oven, Washer
      • Laundry: In Garage, Common Area
      Features
      • Dome Kitchen, Separate Guest/In-Law Quarters, Central Vacuum
      • Flooring: Concrete
      • Windows: Hurricane Shutters
      Interior area
      • Total structure area: 2,740
      • Total interior livable area: 2,700 sqft
      Video & virtual tour

      Property

      Parking
      • Total spaces: 1
      • Parking features: Circular Driveway, Golf Cart Parking
      • Garage spaces: 1
      • Has uncovered spaces: Yes
      Features
      • Patio & porch: Patio
      • Exterior features: Barbecue, Lighting
      • Has private pool: Yes
      • Pool features: In Ground, Concrete, Gunite, Pool Only
      • Fencing: Fenced
      • Has view: Yes
      • View description: Garden
      Lot
      • Size: 8,136 Square Feet
      • Features: 3/4 To Less Than 1 Acre Lot
      Details
      • Parcel number: 2442320040220
      • Zoning: 0100

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Other
      • Property subtype: Single Family Residence
      Materials
      • Concrete Block Construction, Concrete
      • Foundation: Slab
      • Roof: Barrel Roof
      Condition
      • Year built: 1950

      Utilities & green energy

      • Electric: Circuit Breakers
      • Gas: Natural Gas
      • Sewer: Public Sewer
      • Water: Municipal Water, Other

      Community & HOA

      Community
      • Features: Picnic Area
      • Subdivision: Tropical Isle Homes Sub 1
      HOA
      • Has HOA: No
      Location
      • Region: Key Biscayne

      Financial & listing details

      • Price per square foot: $1,381/sqft
      • Tax assessed value: $2,484,737
      • Annual tax amount: $22,265
      • Date on market: 4/10/2026
      • Listing terms: All Cash,Conventional

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        DateEventPrice
        6/16/2026Price change$3,730,000-0.5%$1,381/sqft
        Source: MIAMI #A11999112 Report a problem
        5/18/2026Price change$3,750,000-2.6%$1,389/sqft
        Source: MIAMI #A11999112 Report a problem
        4/11/2026Listed for sale$3,850,000+87.8%$1,426/sqft
        Source: MIAMI #A11999112 Report a problem
        12/11/2023Listing removed--
        Source: Zillow Rentals Report a problem
        10/6/2023Listed for rent$19,800$7/sqft
        Source: MIAMI #A11464841 Report a problem
        10/2/2023Listing removed--
        Source: MIAMI #A11453947 Report a problem
        9/16/2023Listed for rent$19,800$7/sqft
        Source: MIAMI #A11453947 Report a problem
        4/20/2015Sold$2,050,000-6%$759/sqft
        Source: Public Record Report a problem
        11/20/2014Listed for sale$2,180,000$807/sqft
        Source: Fortune International Realty Key Biscayne Inc #A2035691 Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$22,266 +2.4%$1,361,221 +2.9%
        2024$21,738 +1.4%$1,322,859 +3%
        2023$21,448 +5.5%$1,284,330 +3%
        2022$20,338 -0.2%$1,246,923 +3%
        2021$20,377 +6.6%$1,210,605 +1.4%
        2020$19,108 -13.6%$1,193,891 -13%
        2019$22,111 +3.2%$1,372,461 -0.1%
        2018$21,418 $1,374,071 -18%
        2017$21,418 -19.1%$1,676,714 -0.1%
        2016$26,480 +134.6%$1,678,325 +129.9%
        2015$11,289 -1.6%$729,890 +0.8%
        2014$11,470 +3.4%$724,098 +1.5%
        2013$11,095 0%$713,398 +1.7%
        2012$11,095 +2.5%$701,473 +3%
        2011$10,823 -5.2%$681,042 +1.5%
        2010$11,419 +8.2%$670,978 +2.7%
        2009$10,555 +2.9%$653,338 +16.9%
        2007$10,257 -8.2%$558,676
        2006$11,171 --
        2005$11,171 +1.3%--
        2004$11,023 +1.3%--
        2003$10,886 +22.6%--
        2002$8,883 --
        2001$8,883 --

        Find assessor info on the county website

        Monthly payment

        Est. payment

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          All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
          HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
          Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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          Climate risks

          Neighborhood: 33149

          Getting around

          55 / 100
          Somewhat Walkable
          60 / 100
          Bikeable

          Nearby schools

          GreatSchools rating
          Schools provided by the listing agent
          • Elementary: Keybiscayne
          • Middle: Ponce De Leon
          • High: Coral Gables

          Source: MIAMI. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

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