574-576 99th St, Marathon, FL 33050
Property image
Property image
FOR SALE

$1,250,000

Original price: $1,300,000
  • 4 Beds
  • 4 Baths
  • 1,854 sqft

574-576 99th St, Marathon, FL 33050

Est. Mortgage $7,575/mo*
Get Pre-Qualified

Home Highlights

Multi-Family
Built in 1959
$674/sqft

Local Information

  • Map ViewExplore the area around 574-576 99th St.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

About this House

Beautifully renovated and fully turnkey duplex located on a deep-water canal in the heart of Marathon. This rare income-producing property features TWO spacious homes, 2BD/2BA on each side, each unit offers approximately 927 sq. ft. of updated coastal living with impact windows and doors, granite countertops, stainless steel appliances, tile flooring throughout, and covered parking. Renovated in 2020, the property blends modern finishes with the relaxed Florida Keys boating lifestyle.
A true boater's dream, each side offers its own 30' concrete dock and seawall (60' total) complete with 30-amp shore power and fresh water hookups. Enjoy quick ocean access and easy Gulf access via Vaca Cut, making this an exceptional setup for anglers and boating enthusiasts alike. The waterside outdoor spaces are designed for entertaining and enjoying the Keys lifestyle, featuring string lighting, solar-lit dock pilings, under-dock fish lights that attract snapper and tarpon, and frequent manatee visits along the canal.
Located directly next door to Oceanfront Park, owners and guests enjoy immediate access to one of Marathon's premier waterfront parks offering pickleball courts, a dog park, kayak launch, open green space, waterfront walking trails, playgrounds, exercise equipment and community events. Conveniently located 4 miles from Sombrero Beach, and 1.5 miles from Coco Plum Beach.
Currently tenant occupied with both units rented month-to-month. This property also has strong vacation rental potential. Ideal opportunity to live in one side while renting the other, or maximize income potential with a fully turnkey investment property in one of the Florida Keys' most desirable boating communities. Current Insurances are very reasonable:
$3,841 Flood (Covers both sides)
576 - $4,303 Wind 574 - $4,129 Wind
576 - $860 HO/Liability 574 - $721 HO/Liabilty
(Pictures are of 576 99th, 574 is the same layout/finishes. Access can be arranged
Last check for updates: about 4 hours ago
Listing courtesy of Alexia Mann, (404) 988-2259
Seafarer Realty LLC
Source: FLKMLS, MLS#619866
Also Listed on FLKMLS.

Home Details for 574-576 99th St

Interior Features

Beds & Baths
Number of Bedrooms: 4Number of Bathrooms: 4Number of Bathrooms (full): 4
Dimensions and Layout
Living Area: 1854 Square Feet
Appliances & Utilities
Appliances: Washer, Dishwasher, Refrigerator, Range, Microwave, Disposal, Stainless Steel Appliance(s)DishwasherDisposalMicrowaveRefrigeratorWasher
Heating & Cooling
Heating: Has Heating Unspecified TypeHas CoolingAir Conditioning: Central AirHas HeatingHeating Fuel: Has Heating Unspecified Type
Windows, Doors, Floors & Walls
Flooring: Tile
Levels, Entrance, & Accessibility
Floors: Tile
View
No View

Exterior Features

Exterior Home Features
Patio / Porch: PatioNo Private Pool
Parking & Garage
No Attached Garage
Frontage
WaterfrontOn Waterfront

Days on Market

Days on Market: 133

Property Information

Year Built
Year Built: 1959
Property Type / Style
Property Type: ResidentialProperty Subtype: DuplexArchitecture: Conch
Building
Construction Materials: CBSNot a New Construction
Property Information
Condition: Updated/RemodeledParcel Number: 00351980000100

Price & Status

Price
List Price: $1,250,000Price Per Sqft: $674

Active Status

MLS Status: Active

Location

Direction & Address
City: MarathonCommunity: Coral Colony (52.0)

Agent Information

Listing Agent
Listing ID: 619866

Building

Building Area
Building Area: 1854 Square Feet

Community

Community Features: Bike PathsNot Senior Community

HOA

HOA Fee Includes: NoneNo HOAHOA Fee: No HOA Fee

Lot Information

Lot Area: 5220 sqft

Offer

Listing Terms: No Seller Finance, Cash, Conventional, FHA

Rental Terms, Policies & Fees

Furnished

Miscellaneous

Mls Number: 619866

Additional Information

Bike Paths

Around this home

What Locals Say about Marathon

At least 61 Trulia users voted on each feature.

  • 83 % 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

  • 49 % Say kids play outside

  • 45 % Say neighbors are friendly

  • 37 % Say it's walkable to grocery stores

  • 36 % Say there are sidewalks

  • 29 % Say streets are well-lit

Sourced by Trulia users. 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

Market trends in Marathon

Last updated August 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
255
7MoM

Home Value

Trulia Estimate
$1.2M
Since last month
Increased$9K (+0.8%)
Since last year
Increased$169K (+16.3%)
Since last sale
Increased$379K (+46%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +58% in the last 10 years
MonthEstimated value
2026
September 2026$1.2M
August 2026$1.2M
July 2026$1.19M
June 2026$1.2M
May 2026$1.31M
April 2026$1.5M
March 2026$1.5M
February 2026$1.5M
January 2026$1.56M
2025

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
1877-1875 107th St, Marathon, FL
0.39
Multi-Family Home
$410,000
10/21/25
4
2
1,656
625 73rd Street Ocean #A, Marathon, FL
1.28
Multi-Family Home
$510,000
04/03/26
4
3
1,203
571 8th St, Key Colony Beach, FL
1.37
Multi-Family Home
$1,900,000
01/16/26
5
4
2,333
908 66th St, Marathon, FL
1.59
Multi-Family Home
$763,000
03/31/26
4
3
2,074
591 9th St, Key Colony Beach, FL
1.30
Multi-Family Home
$760,000
12/23/25
2
2
1,185
85 Coco Plum Dr #A & B, Marathon, FL
1.90
Multi-Family Home
$1,055,000
08/20/26
6
4
2,250
461 & 471 3rd St, Key Colony Beach, FL
1.78
Multi-Family Home
$1,680,000
08/07/26
6
4
2,528

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
735 50th St, Marathon, FL 33050
0.06
$5,495,000
5
5.5
3,219
For Sale
119 Avenue Ave #D-B, Marathon, FL 33050
0.06
$2,107,100
5
3.5
2,875
Off Market
280 100th St, Marathon, FL 33050
0.08
$1,250,000
3
2.5
1,576
For Sale
864 100th Street Ocean, Marathon, FL 33050
0.06
$1,230,900
3
2
1,700
Off Market
611 101st Street Ocean St, Marathon, FL 33050
0.08
$1,204,700
3
2
2,540
Off Market
755 101st St, Marathon, FL 33050
0.08
$1,413,500
3
2
1,464
Off Market
745 98th St, Marathon, FL 33050
0.10
$1,349,800
3
2
1,280
Off Market
855 101st Street Ocean, Marathon, FL 33050
0.08
$1,525,700
4
3
2,600
Off Market
747 98th Street Ocean St, Marathon, FL 33050
0.10
$1,028,700
2
2
1,152
Off Market
900 101st Street Ocean St, Marathon, FL 33050
0.10
$2,799,999
6
6
2,243
For Sale
757 98th St, Marathon, FL 33050
0.12
$1,046,800
3
2
960
Off Market

Price and Tax history

DateEventPrice
Sep 4, 2026
Source: FLKMLS #619866
PriceChange
$1,250,000
Price decreased by 4%
Jun 8, 2026
Source: MLKAR #619866
PriceChange
$1,300,000
Price decreased by 7%
May 12, 2026
Source: Key West AOR #619866
Listed For Sale
$1,400,000
Apr 1, 2026
Source: FLKMLS #617878
ListingRemoved
$1,650,000
Feb 2, 2026
Source: FLKMLS #617878
PriceChange
$1,650,000
Price decreased by 3%

LGBTQ Local Legal Protections

Alexia Mann, Seafarer Realty LLC
Agent Phone: (404) 988-2259
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 MLS.

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Frequently asked questions about 574-576 99th St

  • What is the estimated monthly payment for 574-576 99th St?
    Based on a $1,250,000 list price with 20% down at today's rates, the estimated monthly payment for 574-576 99th St in Marathon, FL is approximately $7,692 (about $6,763 principal & interest, $854 property taxes, and $75 homeowner's insurance). This is an estimate. Actual payment depends on your loan terms.
  • What do residents say about Marathon?
    Residents describe Marathon, FL as easy to park in, quiet, and dog-friendly. Most residents say you need a car. See homes for sale in Marathon, FL.
  • What are the closest schools to 574-576 99th St?
    The closest schools to 574-576 99th St in Marathon, FL are Marathon School (Middle/High, rated 5/10), Stanley Switlik Elementary School (Pre-K, rated 5/10).
  • What is 574-576 99th St estimated to be worth?
    Trulia's estimated value for 574-576 99th St in Marathon, FL is $1,204,200.
  • Does 574-576 99th St have air conditioning?
    Yes, 574-576 99th St in Marathon, FL has air conditioning.
574-576 99th St, Marathon, FL 33050 is a 4 bedroom, 4 bathroom, 1,854 sqft multi-family built in 1959. This property is currently available for sale and was listed by FLKMLS on May 12, 2026. The MLS # for this home is MLS# 619866.