About This Home

This 5-bedroom, 4-bathroom single family at 103 52nd Street in Marathon, FL is listed for $2,100,000 ($1,091 per sqft). Built in 2004, the home offers 1,924 sqft of living space on a 0.19 acres lot.

Key Features

  • Built in 2004
  • 0.19 acre lot
  • Private pool
  • Waterfront

Property Details

3 full, 1 half
2004

Amenities

PoolWaterfrontA/CRV Parking
Listing Description

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.

Monthly Cost Estimate

$11,231/mo

20% down · 6.5% · 30 years

Principal$1,519
Interest$9,100
Insurance$613

Estimates only. Actual payments may vary.

Location

103 52nd Street

Marathon, FL 33050

Marameade Amd (49.5)

Features & Amenities

Interior Features

Security SystemStorageWalk-in Closet(s)Quartz Countertops

Exterior Features

Chickee HutFencingFruit Tree(s)LightingOutdoor ShowerPrivacy Wall/FenceStorage

Property Details

Flooring

TileCarpetCombo

Construction

Combo Construction

Pool Features

Pool

Outdoor Features

PatioDeckPorch

Parking

OpenRV

Heating

Central

Cooling

Central AirWindow Unit(s)Wall/Window Unit(s)

Appliances

More AppliancesWasherDryerDishwasherRefrigeratorRangeOvenMicrowaveDisposalFreezerStainless Steel Appliance(s)

Questions & Answers

This 5-bedroom, 4-bathroom single family at 103 52nd Street is listed at $2,100,000 ($1,091/sqft). The estimated monthly payment is $11,232 based on 20% down, a 30-year loan at 6.5% interest, estimated insurance.

Key features include: Built in 2004, 0.19 acre lot, Private pool, Waterfront. Interior Features: Security System, Storage, Walk-in Closet(s). Exterior Features: Chickee Hut, Fencing, Fruit Tree(s).

This property is listed by Lindsey N. Davis and can be reached at 3053952380.

LD

Lindsey N. Davis

License 3277131

Agent at Ocean Sotheby's International Realty

(305) 395-2380

Listed by Ocean Sotheby's International Realty · Broker phone: 3057128888 · View on Broker Site

MLS# 619765· Source: Florida Keys Board of REALTORS®· 116 days on PropertySimple

Copyright © 2026 Florida Keys Board of REALTORS®. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

103 52nd Street, Marathon, FL 33050

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