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For sale
    • $2,200,000

    103 52nd St, Marathon, FL 33050

    5beds
    1,924sqft
    : 
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    Single Family Residence
    Built in 2004
    8,276 Square Feet Lot
    $2,067,300 Zestimate®
    $1,143/sqft
    $-- HOA

    What's special

    Saltwater poolPrivacy fencingLush tropical landscapingExtra washer and dryerTiki hutJet ski liftConvenient outdoor pool bath
    Welcome to Casa Sirena, a refined waterfront retreat in Marathon offering comfort, privacy, and strong investment appeal. This five bedroom, three bath home includes a convenient outdoor pool bath and is ideally positioned with water frontage on two sides.Boaters will appreciate 100 feet of durable composite dockage, a jet ski lift, and a private boat ramp shared with just one neighbor. The home enjoys close proximity to Boot Key Harbor, with easy access to waterfront dining by boat, as well as a straightforward route to the Gulf via Knight Key Channel and immediate Ocean access. The surrounding Vaca Key and Boot Key provide a natural buffer, offering added protection from the elements.Outdoor living is central to the property, with lush tropical landscaping, a saltwater pool, tiki hut, and expansive wraparound patios accessible from all rooms. Inside, the open floor plan connects the living, dining, and kitchen areas, creating a comfortable and functional space. The kitchen is equipped with high end appliances suited for everyday use or hosting.Additional features include a spacious two car garage with ample storage, an extra washer and dryer, refrigerator, freezer, and workbench. The home is offered fully furnished and turnkey, ready for personal use or as a vacation rental. Privacy fencing, a security system, and gated dock and ramp access complete the offering.
    58 days
    |
    515
    |
    29
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Lindsey N. Davis 305-395-2380,

    Ocean Sotheby's International Realty

    Source: FLKMLS,MLS#: 619765MLS LogoOriginating MLS: Florida Keys

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      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 5
      • Bathrooms: 4
      • Full bathrooms: 3
      • 1/2 bathrooms: 1
      Heating
      • Central
      Cooling
      • Central Air, Ceiling Fans(s), Wall/Window Unit(s)
      Appliances
      • Included: More Appliances, Stainless Steel Appliance(s), Freezer, Disposal, Microwave, Oven, Range, Refrigerator, Dishwasher, Dryer, Washer
      Features
      • Quartz Countertops, Walk-In Closet(s), Storage
      • Flooring: Tile, Combination, Carpet
      • Windows: Accordion
      • Furnished: Yes
      Interior area
      • Total interior livable area: 1,924 sqft
      Video & virtual tour

      Property

      Parking
      • Parking features: Garage, Carport
      • Has garage: Yes
      • Has carport: Yes
      Features
      • Levels: Two
      • Stories: 2
      • Patio & porch: Open Porch/Balcony
      • Exterior features: Storage, Outdoor Shower, Lighting
      • Has private pool: Yes
      • Pool features: Heated, In Ground, Decked, Concrete, Salt Water
      • Fencing: Privacy,Fenced
      • Has view: Yes
      • View description: Canal
      • Has water view: Yes
      • Water view: Canal
      • Waterfront features: Canal Front, Waterfront, Dock: Composite, Dock Length: 100, Dockage: Boat Ramp
      Lot
      • Size: 8,276 Square Feet
      • Features: Less Than 1/4 Acre
      • Residential vegetation: Fruit Tree(s)
      Details
      • Additional structures: Chickee Hut
      • Parcel number: 00325100000000
      • Zoning: RH
      • Zoning description: Residential High

      Construction

      Type & style
      • Home type: SingleFamily
      • Property subtype: Single Family Residence
      Materials
      • Combo Construction
      • Roof: Shingle
      Condition
      • Year built: 2004

      Utilities & green energy

      • Sewer: Municipal Sewer, Public Sewer
      • Utilities for property: FKAA, Cable Connected

      Community & HOA

      Community
      • Security: Security System, Smoke Detector(s)
      • Subdivision: Marameade Amd (49.5)
      HOA
      • Has HOA: No
      • Services included: None
      Location
      • Region: Marathon

      Financial & listing details

      • Price per square foot: $1,143/sqft
      • Tax assessed value: $1,214,395
      • Annual tax amount: $10,953
      • Date on market: 5/5/2026
      • Listing terms: Cash,FHA,VA Loan,Conventional

        Estimated market value

        $2,067,300

        $1.96M - $2.17M

        $5,750/mo

        Price history

        DateEventPrice
        5/5/2026Listed for sale$2,200,000+95.6%$1,143/sqft
        Source: Key West AOR #619765 Report a problem
        3/14/2019Sold$1,125,000+63.3%$585/sqft
        Source: FLKMLS #582871 Report a problem
        12/14/2017Sold$689,000+84%$358/sqft
        Source: FLKMLS #573327 Report a problem
        8/24/2012Sold$374,500-5.1%$195/sqft
        Source: MLKAR #558139 Report a problem
        6/1/2012Price change$394,500$205/sqft
        Source: Homepath Report a problem
        5/23/2012Listed for sale--
        Source: Homepath Report a problem
        3/21/2012Listing removed--
        Source: Homepath Report a problem
        3/7/2012Listed for sale--
        Source: Homepath Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$10,953 -4.9%$1,214,395 +0.1%
        2024$11,524 +3.9%$1,213,545 +9%
        2023$11,095 +8%$1,113,180 +10%
        2022$10,277 +6.7%$1,011,982 +10%
        2021$9,632 +1.1%$919,984 -0.5%
        2020$9,530 $924,498 +14%
        2019$9,530 +25.9%$810,836 +38.5%
        2018$7,572 +26%$585,338 +0.1%
        2017$6,012 -1.8%$585,027 +9.8%
        2016$6,124 +5.3%$533,015 +20.6%
        2015$5,818 $441,869

        Find assessor info on the county website

        Monthly payment

        Est. payment

        Payment breakdown

        Explore the cost of this home by adjusting the details. Changes won't be saved.
        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: 33050

        Getting around

        49 / 100
        Car-Dependent
        86 / 100
        Very Bikeable

        Nearby schools

        GreatSchools rating

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