103 52nd St Marathon, FL 33050
Estimated payment $12,704/month
Highlights
- Waterfront
- Fruit Trees
- Quartz Countertops
- Coral Shores High School Rated A
- Furnished
- Stainless Steel Appliances
About This Home
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.
Listing Agent
Ocean Sotheby's International Realty License #3277131 Listed on: 05/05/2026
Open House Schedule
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Sunday, May 17, 202611:00 am to 1:00 pm5/17/2026 11:00:00 AM +00:005/17/2026 1:00:00 PM +00:00Join us in previewing this brand new listing! Prime location and excellent investment potential.Add to Calendar
Home Details
Home Type
- Single Family
Year Built
- Built in 2004
Lot Details
- Waterfront
- Privacy Fence
- Fenced
- Fruit Trees
- Property is zoned RH - Residential High
Interior Spaces
- Walk-In Closet
- Furnished
- Storage
- Home Security System
Kitchen
- Oven
- Range
- Microwave
- Freezer
- Dishwasher
- Stainless Steel Appliances
- Quartz Countertops
- Disposal
Laundry
- Dryer
- Washer
Outdoor Features
- Outdoor Shower
- Dock made with Composite Material
- Exterior Lighting
- Outdoor Storage
- Tiki or Chickee Hut
Listing and Financial Details
- Assessor Parcel Number 00325100000000
Map
Home Values in the Area
Average Home Value in this Area
Tax History
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $11,524 | $1,214,395 | $757,403 | $456,992 |
| 2024 | $11,524 | $1,213,545 | $757,403 | $456,142 |
| 2023 | $11,095 | $1,198,365 | $757,403 | $440,962 |
| 2022 | $10,277 | $1,082,342 | $420,015 | $662,327 |
| 2021 | $9,632 | $919,984 | $323,619 | $596,365 |
| 2020 | $9,530 | $924,498 | $426,901 | $497,597 |
| 2019 | $7,572 | $810,836 | $402,802 | $408,034 |
| 2018 | $6,012 | $585,338 | $241,689 | $343,649 |
| 2017 | $6,124 | $585,027 | $0 | $0 |
| 2016 | $5,818 | $533,015 | $0 | $0 |
| 2015 | $5,232 | $441,869 | $0 | $0 |
| 2014 | $4,670 | $365,646 | $0 | $0 |
Property History
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 05/05/2026 05/05/26 | For Sale | $2,200,000 | +95.6% | $1,143 / Sq Ft | |
| 03/14/2019 03/14/19 | Sold | $1,125,000 | -6.3% | $585 / Sq Ft | View Prior Sale |
| 03/04/2019 03/04/19 | Pending | -- | -- | -- | |
| 11/19/2018 11/19/18 | For Sale | $1,200,000 | +74.2% | $624 / Sq Ft | |
| 12/14/2017 12/14/17 | Sold | $689,000 | -1.4% | $358 / Sq Ft | View Prior Sale |
| 08/17/2017 08/17/17 | Pending | -- | -- | -- | |
| 12/26/2016 12/26/16 | For Sale | $699,000 | -- | $363 / Sq Ft |
Purchase History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Warranty Deed | $1,125,000 | None Listed On Document | |
| Warranty Deed | $689,000 | Attorney | |
| Special Warranty Deed | $374,500 | Attorney | |
| Trustee Deed | -- | None Available | |
| Trustee Deed | -- | None Available | |
| Warranty Deed | $50,000 | -- | |
| Warranty Deed | $42,500 | -- | |
| Deed | $9,000 | -- |
Mortgage History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Open | $600,000 | Purchase Money Mortgage | |
| Previous Owner | $195,931 | Credit Line Revolving | |
| Previous Owner | $299,600 | New Conventional | |
| Previous Owner | $341,000 | New Conventional | |
| Previous Owner | $45,000 | New Conventional |
Source: Florida Keys Board of REALTORS®
MLS Number: 619765
APN: 00325100-000000
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