Date
Details
Price
Change
Source
5/05/2026
Listed
$2,200,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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1/49
$2,200,000
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Property Description
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.
Full Property Details
Full Property Details for 103 52nd St
General
- Price: $2,200,000
- Taxes: $10,953 (2025)
- Status: Active
- Type: Single Family
- Source: 927
- MLS ID: 619765
- Updated: 5/13/2026
- Added to Site: 87 day(s) ago
Interior
- Interior Features: Walk-in Closet(s), Quartz Countertops, Security System, Smoke Alarms, Storage
- Appliances: Stainless Steel Appliance(s), Dishwasher, Disposal, Dryer, Freezer, Microwave, More Appliances, Oven, Range, Refrigerator, Washer
- Flooring: Tile, Carpet, Combo
Rooms
Bathrooms
- Total Bathrooms: 4
- Full Bathrooms: 3
- Half Bathrooms: 1
Bedrooms
- Total Bedrooms: 5
Additional Information
- Pool: Yes
- Pool Description: Concrete, Heated, Salt Water, In Ground, Decked
Exterior
- Exterior Features: Lighting, Chickee Hut, Fencing, Fruit Tree(s), Outdoor Shower, Privacy Wall/Fence, Storage
- Deck/Patio: Open Porch/Balcony
- Porch/Patio/Deck: Open Porch/Balcony
Parking
- Garage: Yes
- Parking Features: Carport
Location
- Area: 13 - 7 Mile Bridge to Sombrero Bch Rd E & W
- County: Monroe
- Subdivision: Marameade Amd (49.5)
- Driving Directions: When heading south on US1, turn left onto 49th St. which is just south of the Cracked Conch Cafe. Take left on Ocean Terr, right on 52nd St. Home is last house on right.
Community
- Assoc. Fees Include: None
- Pets Allowed: Yes
Heating & Cooling
- Central air: Yes
- Air Conditioning: Yes
- Cooling Type: Wall/Window Unit(s), Central Air, Ceiling Fans(s)
- Heating Type: Central
Structural Information
- Architectural Style: Above Flood
- Construction: Combo Construction
- Roof: Shingle
- Windows/Doors: Shutters
- Square Feet: 1,924
- Sq. Ft. Source: Property Data Card
- Year Built: 2004
Lot Features
- Property View: Canal
- Lot Size (Acres): 0.19
- Lot Size (Sq. Ft.): 6,955
- Zoning: RH - Residential High
Water Features
- Water Front: Yes
- Water View: Yes
- Water Front Desc.: Canal Front
Financial Considerations
- Tax Amount: $10,953.28
- Tax Year: 2025
- Terms: Cash, Conventional, VA Loan, FHA
Disclosures and Reports
- Legal Description: Bk H Lt 6 Amended Plat Of Marmeade Subd Pb3-185 Key Vacca Or495-1064 Or561-527 Or1091-2254 Or1193-2141/44 Or1368-1730D/C
- APN: 325100000000
Listed by Ocean Sotheby's International Realty, Lindsey N. Davis (305) 395-2380
We Value Your Privacy
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Listing agent
— 103 52nd St —
Lindsey N. Davis
Ocean Sotheby's International Realty
NMLS#: 1598647Get Pre-Approved Today
Schools
Schools serving 103 52nd St
School District:Monroe County School District, Middle Torch Key, FL
| Name | Grades | Distance |
|---|---|---|
Stanley Switlik Elementary School 3400 Overseas Highway, Marathon, FL 33050 | PK-5 | 1 mi |
Marathon School 350 Sombrero Beach Road, Marathon, FL 33050 | 6-12 | 0.7 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 103 52nd St
Estimate the Cost
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103 52nd Street, Marathon, FL 33050 (MLS# 619765) is a Single Family property with 5 bedrooms, 3 full bathrooms and 1 partial bathroom. 103 52nd Street is currently listed for $2,200,000 and was received on April 08, 2026. Want to learn more about 103 52nd Street? Do you have questions about finding other Single Family real estate for sale in Marathon? You can browse all Marathon real estate or contact a Coldwell Banker agent to request more information.