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103 52nd Street, Marathon, FL - photo 1

$2,100,000

103 52nd Street

Marathon, FL 33050

Estimated payment $11,194/month

HOA not listed, not included · estimated tax · estimated insurance · 20% down, 6.5%, 30 yr

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5Beds
4Baths
1,924Sq Ft
$1091Price/Sq Ft

Preferred partner

Kinsfolk Realty

Kinsfolk Signature Realty

Powered by Hometrino

(813) 602-0498

Highlights

Built in 2004
8,276 sqft Lot

About This Home

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.

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Facts & features

Bedrooms & bathrooms

  • •Bedrooms:5
  • •Bathrooms:4 (3 full, 1 half)
  • •Full bathrooms:3
  • •Half bathrooms:1

Heating

  • •Has Heating:Yes

Interior area

  • •Total structure area:1,924 sqft
  • •Total interior livable area:1,924 sqft

Parking

  • •Parking features:N/A
  • •Garage spaces:0
  • •Has attached garage:No

Lot

  • •Size:8,276 sqft

Details

  • •Parcel number:N/A

Type & style

  • •Home type:Single Family Residence
  • •Property subtype:Residential

Materials

  • • N/A

Condition

  • •Year built:2004

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Price history

DateEventPrice
10/30/2026Listed for sale$2,100,000$1091/sqft

Listing Agent

Lindsey N. Davis

Ocean Sotheby's International Realty

Brokerage Phone: 305-712-8888

Source: Florida Keys MLS · MLS #619765

Data Powered by Home Junction, Inc.

Nearby

Schools

MARATHON SCHOOL

High · 0.7 mi

FLORIDA KEYS COMMUNITY COLLEGE - MIDDLE KEYS CENTER

0.8 mi

STANLEY SWITLIK ELEMENTARY SCHOOL

Elementary · 1.0 mi

Supermarkets

Publix Drive-Up

0.1 mi

Winn-Dixie

0.3 mi

Paradise Produce

0.4 mi

Dining

Wendy's

0.1 mi

Blu Bistro

0.2 mi

McDonald's

0.4 mi

Parks

Jesse Hobbs Park

0.5 mi

Marathon Community Park

0.7 mi

Rotary Children's Park

1.3 mi

Beaches

Sombrero Beach

1.6 mi

Coca Plum Beach

5.0 mi

Campground Beach

6.3 mi

Nearby amenity locations include data © OpenStreetMap contributors.