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For sale
  • Price cut: $100K (7/7)
    $2,100,000

    103 52nd St, Marathon, FL 33050

    5beds
    1,924sqft
    Single Family Residence
    Built in 2004
    8,276 Square Feet Lot
    $2,000,300 Zestimate®
    $1,091/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. Seller Financing available! 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.
    104 days
    |
    555
    |
    36
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Lindsey N. Davis 305-395-2380,

    Ocean Sotheby's International Realty

    Source: FLKMLS,MLS#: 619765MLS Logo

      Facts & features

      Interior

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

      Property

      Parking
      • Parking features: Open, RV Carport, Storage
      • Has garage: Yes
      • Has carport: Yes
      • Has uncovered spaces: Yes
      Features
      • Patio & porch: Open Porch/Balcony, Deck, Patio
      • Exterior features: Chickee Hut, Fruit Tree(s), Lighting, Outdoor Shower, Storage
      • Has private pool: Yes
      • Pool features: In Ground, Salt Water, Concrete, Decked
      • Fencing: Fenced,Privacy
      • On waterfront: Yes
      Lot
      • Size: 8,276 Square Feet
      Details
      • Parcel number: 00325100000000
      • Zoning: RH - Residential High

      Construction

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

      Community & HOA

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

      Financial & listing details

      • Price per square foot: $1,091/sqft
      • Tax assessed value: $1,214,395
      • Annual tax amount: $10,953
      • Date on market: 5/5/2026
      • Listing terms: Seller Finance Psble,Cash,Conventional,FHA

        Estimated market value

        $2,000,300

        $1.90M - $2.10M

        $5,265/mo

        Price history

        DateEventPrice
        7/7/2026Price change$2,100,000-4.5%$1,091/sqft
        Source: FLKMLS #619765 Report a problem
        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

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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.
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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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