Ad #7673764
MLS #619765
Welcome to Casa Sirena, a refined waterfront retreat in Marathon
103 52nd St, Marathon, FL 33050
$2,100,000
5Beds
4Baths
1,924Sqft
0.19Acres
About this property
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.
Property Features
5 Beds
4 Baths
1,924 Sqft
Built in 2004
0.19 Acres
On Beachfront
Siding: Combo Construction
Shingle Roof
Has Swimming Pool
Central
$10,953 / yr property tax
Monroe County
Marameade Amd (45) Community
Additional Photos
Contact Information
Lindsey N. Davis
Ocean Sotheby's International Realty
305-395-2380
Location
Listing Agent: Lindsey N. Davis (License #: 3277131) 305-395-2380
Broker: Ocean Sotheby's International Realty 305-712-8888 Listing Site
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.
Broker: Ocean Sotheby's International Realty 305-712-8888 Listing Site
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.
BeachHouse.com
Printed Aug 11, 2026
Photo Gallery
$2,100,000
5
Beds
4
Baths
1,924
Sqft
103 52nd St, Marathon, FL 33050
By contacting this agent you agree to these Terms and Conditions.
MLS# 619765
Welcome to Casa Sirena, a refined waterfront retreat in Marathon
$2,100,000
103 52nd St, Marathon, FL 33050
5
Beds
4
Baths
1,924
Sqft
0.19
Acres
$2,100,000
103 52nd St, Marathon, FL 33050
5 Beds
4 Baths
1,924 Sqft
0.19 Acres
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.
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Property Details
HOME DETAILS
5 Beds
4 Baths
1,924 Sqft
Built in 2004
0.19 Acres
BEACH & VIEW
On Beachfront
EXTERIOR
Siding: Combo Construction
Shingle Roof
Has Swimming Pool
INTERIOR
Central
FINANCIAL & COMMUNITY
$10,953 / yr property tax
Monroe County
Marameade Amd (45) Community
See More Details
Location
Mortgage Calculator
Ad Statistics
Ad Number
7673764
Viewed
73 times
Listing Status
Active
Added
May 05, 2026
Last Refreshed
Jul 03, 2026 06:17:28 PM
Listing Information
Data Source
Florida Keys Board of REALTORS®
Source Property ID
619765
Listing Agent: Lindsey N. Davis (License #: 3277131) 305-395-2380
Broker: Ocean Sotheby's International Realty 305-712-8888 Listing Site
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.
Broker: Ocean Sotheby's International Realty 305-712-8888 Listing Site
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.
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