103 52nd St, Marathon, FL 33050
FOR SALE

103 52nd St
Marathon, FL 33050

  • 5 Beds
  • 3.5 Baths
  • 1,924 sqft

$2,200,000

Est. Mortgage $12,244/mo*
Get Pre-Qualified

$2,200,000

Est. Mortgage $12,244/mo*
Get Pre-Qualified
5 Beds
3.5 Baths
1,924 sqft
We estimate this home will sell faster than 95% nearby.

Local Information

Map showing home location
© Google
-- mins to
Commute Destination

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.
We estimate this home will sell faster than 95% nearby.

Open House

Sunday, May 17
11:00 AM to 1:00 PM

Home Highlights

Parking
Garage
Outdoor
Porch, Pool
View
Canal
HOA
None
Price/Sqft
$1,143
Listed
4 days ago

Home Details for 103 52nd St

Interior Features

Beds & Baths
Number of Bedrooms: 5Number of Bathrooms: 4Number of Bathrooms (full): 3Number of Bathrooms (half): 1
Dimensions and Layout
Living Area: 1924 Square Feet
Appliances & Utilities
Utilities: FKAA, Cable ConnectedAppliances: More Appliances, Stainless Steel Appliance(s), Freezer, Disposal, Microwave, Oven, Range, Refrigerator, Dishwasher, Dryer, WasherDishwasherDisposalDryerMicrowaveRefrigeratorWasher
Heating & Cooling
Heating: CentralHas CoolingAir Conditioning: Central Air,Ceiling Fans(s),Wall/Window Unit(s)Has HeatingHeating Fuel: Central
Windows, Doors, Floors & Walls
Window: AccordionFlooring: Tile, Combination, Carpet
Levels, Entrance, & Accessibility
Stories: 2Levels: TwoFloors: Tile, Combination, Carpet
View
Has a ViewView: Canal
Security
Security: Security System, Smoke Detector(s)
Room & Shared Space
Shared space is furnished

Exterior Features

Exterior Home Features
Roof: ShinglePatio / Porch: Open Porch/BalconyFencing: Privacy, FencedVegetation: Fruit Tree(s)Other Structures: Chickee HutExterior: Storage, Outdoor Shower, LightingHas a Private Pool
Parking & Garage
Has a CarportHas a GarageNo Attached GarageNo Open ParkingParking: Garage,Carport
Pool
Pool: Heated, In Ground, Decked, Concrete, Salt WaterPool
Frontage
WaterfrontWaterfront: Canal Front, Waterfront, Dock: Composite, Dock Length: 100, Dockage: Boat RampOn Waterfront
Water & Sewer
Sewer: Municipal Sewer, Public Sewer

Days on Market

Days on Market: 4

Property Information

Year Built
Year Built: 2004
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family Residence
Building
Construction Materials: Combo Construction
Property Information
Parcel Number: 00325100000000

Price & Status

Price
List Price: $2,200,000Price Per Sqft: $1,143

Active Status

MLS Status: Active

Media

Location

Direction & Address
City: MarathonCommunity: Marameade Amd (49.5)

Agent Information

Listing Agent
Listing ID: 619765

HOA

HOA Fee Includes: NoneAssociation for this Listing: Florida KeysNo HOAHOA Fee: No HOA Fee

Lot Information

Lot Area: 8276.4 sqft

Offer

Listing Terms: Cash, FHA, VA Loan, Conventional

Rental Terms, Policies & Fees

Furnished

Miscellaneous

Mls Number: 619765Water ViewWater View: Canal
Last check for updates: about 5 hours ago
Listing courtesy of Lindsey N. Davis, (305) 395-2380
Ocean Sotheby's International Realty
Originating MLS: Florida Keys
Source: FLKMLS, MLS#619765
Also Listed on FLKMLS, Key West AOR, Key West AOR.

Price History for 103 52nd St

DatePriceEventSource
05/05/2026$2,200,000Listed For SaleKey West AOR #619765
03/14/2019$1,125,000Sold
FLKMLS #582871
12/14/2017$689,000Sold
FLKMLS #573327
08/24/2012$374,500Sold
MLKAR #558139
06/01/2012$394,500PriceChange
Agent Provided
05/23/2012$0Listed For SaleAgent Provided
03/21/2012$0ListingRemovedAgent Provided
03/07/2012$0Listed For SaleAgent Provided

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Property Tax and Assessment

Year2025
Tax$10,953
Assessment$1,214,395
Home facts updated by county records

Comparable Sales for 103 52nd St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
104 52nd St, Marathon, FL
0.03
Single-Family Home
$1,300,000
12/12/25
3
3
1,481
104 52nd Street Ocean, Marathon, FL
0.03
Single-Family Home
$1,300,000
12/12/25
3
3
1,481
1850 Manor Ln, Marathon, FL
0.38
Single-Family Home
$1,507,500
03/27/26
4
3
2,302
10 47th St, Marathon, FL
0.27
Single-Family Home
$1,600,000
08/18/25
4
2.5
2,316
231 Sombrero Beach Rd #1, Marathon, FL
0.36
Single-Family Home
$1,151,000
05/01/26
4
3
1,888
234 49th St Ocean, Marathon, FL
0.14
Single-Family Home
$875,000
03/31/26
2
2
1,077
1450 52nd St, Marathon, FL
0.34
Single-Family Home
$799,500
01/20/26
3
2
1,440
223 Sombrero Beach Rd #1, Marathon, FL
0.33
Single-Family Home
$1,325,000
12/19/25
4
3
1,888
5206 Dogwood Dell St, Marathon, FL
0.43
Single-Family Home
$799,000
12/08/25
3
2
1,710
1545 Eastward Ho Ln, Marathon, FL
0.43
Single-Family Home
$699,000
12/12/25
3
2
1,586

Assigned Schools

These are the assigned schools for 103 52nd St.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

What Locals Say about Marathon

At least 61 Trulia users voted on each feature.

  • 82 % Say car is needed

  • 79 % Say people would walk alone at night

  • 76 % Say parking is easy

  • 72 % Say it's quiet

  • 70 % Say it's dog friendly

  • 70 % Say yards are well-kept

  • 68 % Say there's holiday spirit

  • 61 % Say it's walkable to restaurants

  • 53 % Say there's wildlife

  • 53 % Say they plan to stay for at least 5 years

  • 51 % Say there are community events

  • 48 % Say kids play outside

  • 44 % Say neighbors are friendly

  • 37 % Say it's walkable to grocery stores

  • 36 % Say there are sidewalks

  • 29 % Say streets are well-lit

Learn more about our methodology.
  • 4yrv5tc4qr
    "Seafood festival, theater, music festival, turtle releases, homecoming parade, 4th of July fireworks on the beach"
    1
    Flag
  • Ingridfox
    "people love walking dogs on the beach and dog dog park at Sombrero Beach. A lot of restaurants are dog friendly. This is a great place for dog owners. "
    1
    Flag
  • C E.
    "There is no place for kids to hang out really except for the skate park. There are no malls, no skating rinks, no places for kids to meet safely. "
    1
    Flag
  • Jan M.
    "We have basic public transportation. I’d take a taxi anywhere in town. .............................,,"
    0
    Flag
  • Erin F.
    "There’s plenty of grass, sidewalks and quiet roads to walk along.. plus the public beach is always a dogs favorite adventure.. just pick up after your dog!"
    2
    Flag
  • Thurmankolb
    "Yes! Dog park just down the street. Lots of neighbors know each other by our dogs. Great vets n Marathon and good groomer."
    6
    Flag
  • Thurmankolb
    "Lots of community events and activities. Fishing tournaments, seafood festival, school carnivals, etc... "
    2
    Flag
  • Jamie B.
    "Everyone gets together for the kids at Halloween. We have a community park with special events planned for the kids and the beach is the sight for a special 4th of July. "
    0
    Flag
  • Abiezer31
    "Of course ,the neighbors the owner and dog are very nice I’m very proud living in my house.and this neighborhood "
    3
    Flag
  • Darren S.
    "I live off the beaten path across the street from a golf course. It's very quiet and tranquil. throb marinas surrounding the property and can walk to All shops and stores."
    0
    Flag
  • Cyndiepalmer
    "We are a friendly neighborhood. You walk your street and say Hi anytime. It is a safe street to live "
    0
    Flag
  • Ksperkinson
    "Safe clean near ocean good police pet friendly hospital is coming along in the construction have contract here at hospital looking forward to finding a good place for 3 months"
    0
    Flag
  • Stephanie M.
    "A lot of kids and cars. A fire station that is noisey but nice. Lizards everywhere. There is one hotel on this small island. There are A lot of Vacation homes here and crab catchers. When it rains you can't see the road."
    0
    Flag
  • Lb2071
    "water front community , is a small island called Flamingo Island. We have a 9 hole golf course and just 5 minutes from Publix and Kmart. Sombrero beach is right at the outset of the canals on the Atlantic ocean and the people are very loving and friendly."
    0
    Flag
  • Gonzalez8834
    "Marathon is a great place to life and have a family, very safe, quiet and full of great people. ......"
    0
    Flag
  • Tom A. C. M.
    "I live here (14 years) and love the area. Close accessibility to shopping, schools, churches, golf, beach, walking, biking. "
    0
    Flag
  • Anne K.
    "Lived here for many years and is one of the best places to live in Marathon. Conveniently located near schools, parks, shopping and beach just minutes away."
    0
    Flag
  • Debra G.
    "Only 8 miles from Marathon. Away from the winter traffic, airport noise. Crystal clean, flow through canals. Great place to vacation and a great place to live. "
    0
    Flag

LGBTQ Local Legal Protections

Lindsey N. Davis, Ocean Sotheby's International Realty
Agent Phone: (305) 395-2380
MLS Internet Data Exchange (IDX) information is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, and that the data is deemed reliable but is not guaranteed accurate by the Florida Keys Board of Realtors.
103 52nd St, Marathon, FL 33050 is a 5 bedroom, 4 bathroom, 1,924 sqft single-family home built in 2004. This property is currently available for sale and was listed by FLKMLS on May 5, 2026. The MLS # for this home is MLS# 619765.