421 121st St, Marathon, FL 33050
OFF MARKET

421 121st St
Marathon, FL 33050

  • 4 Beds
  • 2 Baths
  • 1,803 sqft

$1,535,300

Trulia Estimate
as of Aug 5, 2026
Est. Refi. Payment $9,025/mo*
Refinance Your Home

$1,535,300

Trulia Estimate
as of Aug 5, 2026
Est. Refi. Payment $9,025/mo*
Refinance Your Home
4 Beds
2 Baths
1,803 sqft

Local Information

  • Map ViewExplore the area around 421 121st St.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1963
Living Area
1,803 sqft
Price/Sqft
$852

About this House

Engaging open water views and immediate access to Gulf and Atlantic waters are found at this four-bedroom, two-bathroom concrete Residential Income Property located along Marathon's Vaca Cut. This active 7-day rental property with strong rental history and future bookings has grossed $230,000 over the past three years. Additional features include generous dock space, a swimming pool, a sandy beach area, and sunsets. Its central Florida Keys location provides trouble-free access to the region's many attractions and amenities. Offered turnkey!
421 121st St, Marathon, FL 33050 is a 4 bedroom, 2 bathroom, 1,803 sqft single-family home built in 1963. It last sold for $935,000 on Jun 16, 2021. It is currently off market. The Trulia Estimate is $1,535,300, with a rent estimate of $4,353/month.

Home Details for 421 121st St

Interior Features

Heating & Cooling
Heating: Forced AirAir ConditioningCooling System: CentralHeating Fuel: Forced Air
Interior Details
Types of Rooms: Breakfast Nook, Dining Room, Family Room, Master Bath
Appliances & Utilities
Cable ReadyDishwasherDryerMicrowaveRefrigeratorWasher
Levels, Entrance, & Accessibility
Floors: Tile

Exterior Features

Exterior Home Features
Roof: OtherDeckExterior: StuccoFoundation Type: Slab
Pool
Pool
Parking & Garage
Parking Spaces: 4Parking: Off Street

Property Information

Year Built
Year Built: 1963Year Updated: 2003
Property Type / Style
Property Type: Single Family HomeArchitecture: Other

Rental Terms, Policies & Fees

Furnished

Community

Units in Building: 1

Lot Information

Lot Area: 7583 sqft

Additional Information

On Site Laundry Available

Price History for 421 121st St

DatePriceEventSource
06/16/2021$935,000Sold
FLKMLS #594488
03/10/2021$925,000ContingentFLKMLS #594488
03/10/2021$925,000PriceChange
FLKMLS #594488
02/02/2021$949,500Listed For SaleFLKMLS #594488
05/30/2019$875,000ListingRemovedAgent Provided
11/13/2017$875,000Listed For SaleAgent Provided
04/11/2016$950,000ListingRemovedAgent Provided
02/08/2016$950,000Listed For SaleAgent Provided
02/12/2014$875,000ListingRemovedAgent Provided
12/15/2013$875,000PriceChange
Agent Provided
12/12/2013$895,000Listed For SaleAgent Provided
11/02/2013$895,000ListingRemovedAgent Provided
04/05/2012$895,000Listed For SaleN/A
02/06/2009$967,500ListingRemovedAgent Provided
10/14/2008$967,500PriceChange
Agent Provided
07/12/2008$1,075,000Listed For SaleAgent Provided
09/07/2005$1,000,000Sold
N/A
09/25/2003$525,000Sold
N/A
07/07/1997$185,000Sold
N/A

Market trends in Marathon

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$723K
$19.17KMoM
Sale-to-List Price
94.6%
Price per sq ft
$628
$22MoM
Available listings
251
17MoM
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Property Tax and Assessment

Year2025
Tax$11,728
Assessment$1,385,461
Home facts updated by county records

Comparable Sales for 421 121st St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
435 121st St, Marathon, FL
0.04
Single-Family Home
$1,300,000
11/14/25
3
3
1,731
412 122nd St, Marathon, FL
0.05
Single-Family Home
$2,595,000
08/13/25
3
2.5
2,391
11280 1st Ave, Marathon, FL
0.51
Single-Family Home
$982,000
12/04/25
3
2.5
1,842
11270 3rd Ave, Marathon, FL
0.53
Single-Family Home
$1,260,000
06/01/26
3
2
1,424
658 116th St, Marathon, FL
0.42
Single-Family Home
$1,200,000
09/22/25
2
2
1,280
11250 3rd Ave, Marathon, FL
0.54
Single-Family Home
$1,400,000
07/31/26
4
3
1,740
11284 3rd Avenue Ocean Ave, Marathon, FL
0.53
Single-Family Home
$1,100,000
08/18/25
3
2
1,152
501 11th St, Key Colony Beach, FL
0.66
Single-Family Home
$1,600,000
02/03/26
3
2
1,776
11890 1st Ave #3, Marathon, FL
0.11
Single-Family Home
$2,500,000
07/30/26
5
4
2,607
298 116th St, Marathon, FL
0.38
Single-Family Home
$1,055,000
06/08/26
2
2
808

Nearby homes

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Assigned Schools

These are the assigned schools for 421 121st 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.

  • 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

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Apartments for Rent

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Explore by feature - Pet Friendly

16 pet-friendly rentals in Marathon, FL

Explore by feature - Garage

6 rentals with a garage in Marathon, FL

Explore by feature - Air Conditioning

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Explore by feature - Pool

16 rentals with a pool in Marathon, FL

Explore by feature - Washer/dryer

14 rentals with a washer/dryer in Marathon, FL

Homes for sale near 421 121st St

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Off Market Homes Near 421 121st St

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