420 12th St, Marathon, FL 33051
Property image
Property image
OFF MARKET

420 12th St
Marathon, FL 33051

  • 3 Beds
  • 4 Baths
  • 2,348 sqft (on 0.44 acres)

$2,736,700

Trulia Estimate
as of Jul 28, 2026
Est. Refi. Payment $15,841/mo*

$2,736,700

Trulia Estimate
as of Jul 28, 2026
Est. Refi. Payment $15,841/mo*
3 Beds
4 Baths
2,348 sqft
(on 0.44 acres)

Local Information

  • Map ViewExplore the area around 420 12th 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
1994
Lot Size
0.44 acres
Living Area
2,348 sqft
Price/Sqft
$1,166
Parking
Garage

About this House

This single-family home is located at 420 12th St, Marathon, FL. 420 12th St is in Marathon, FL and in ZIP code 33051. This property has 3 bedrooms, 4 bathrooms and approximately 2,348 sqft of floor space. This property has a lot size of 0.44 acres and was built in 1994.
420 12th St, Marathon, FL 33051 is a 3 bedroom, 4 bathroom, 2,348 sqft single-family home built in 1994. It last sold for $1,600,000 on Jun 28, 2019. It is currently off market. The Trulia Estimate is $2,736,700, with a rent estimate of $6,181/month.

Home Details for 420 12th St

Interior Features

Levels, Entrance, & Accessibility
Stories: 1Floors: Other

Exterior Features

Exterior Home Features
Roof: MetalExterior: StuccoFoundation Type: Concrete
Pool
Pool
Parking & Garage
GarageParking: Garage

Property Information

Year Built
Year Built: 1994Year Updated: 2010
Property Type / Style
Property Type: Single Family Home

Community

Units in Building: 1

Lot Information

Lot Area: 0.44 acres

Price History for 420 12th St

DatePriceEventSource
06/28/2019$1,600,000Sold
FLKMLS #584168
01/02/2004$1,725,000Sold
FLKMLS #518204
09/11/1996$525,000Sold
N/A
01/20/1994$87,500Sold
N/A

Market trends in Key Colony Beach

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
58
5
MoM
Skip to last item
  • Results are loading
Skip to first item

Property Tax and Assessment

Year2025
Tax$17,789
Assessment$2,105,251
Home facts updated by county records

Comparable Sales for 420 12th St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
0.07
Single-Family Home
$2,550,000
10/17/25
3
2.5
2,077
0.12
Single-Family Home
$2,500,000
05/19/26
3
3
2,418
0.08
Single-Family Home
$1,600,000
02/03/26
3
2
1,776
0.16
Single-Family Home
$3,200,000
06/30/26
4
4
2,649
0.12
Single-Family Home
$2,050,000
06/26/26
5
3
2,347
0.16
Single-Family Home
$2,400,000
04/24/26
3
2.5
2,521
0.11
Single-Family Home
$3,430,000
06/16/26
4
4
3,680
0.03
Single-Family Home
$3,840,000
06/23/26
5
5.5
3,578
0.36
Single-Family Home
$3,250,000
04/09/26
3
3
2,600
0.08
Single-Family Home
$2,237,500
04/20/26
3
2
1,584

Nearby homes

Get a sense of prices in the area by checking nearby homes.
Skip to last item
Skip to first item

Assigned Schools

These are the assigned schools for 420 12th St.
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 Key Colony Beach

At least 4 Trulia users voted on each feature.
  • 100 % Say it's quiet

  • 100 % Say it's walkable to restaurants

  • 91 % Say yards are well-kept

  • 90 % Say parking is easy

  • 86 % Say car is needed

  • 80 % Say it's dog friendly

  • 80 % Say people would walk alone at night

  • 78 % Say streets are well-lit

  • 57 % Say they plan to stay for at least 5 years

  • 50 % Say there's holiday spirit

  • 50 % Say there are sidewalks

  • 50 % Say there are community events

  • 50 % Say there's wildlife

  • 38 % Say kids play outside

  • 33 % Say neighbors are friendly

  • 33 % Say it's walkable to grocery stores

Sourced by Trulia users. Learn more about our methodology.
  • David Sloan
    "Lived here for over a month, almost everyone is friendly as well as mostly pet friendly. I own a pitbull that is my service dog, majority comes up to love him him, few assume he isn’t friendly."
  • L. F.
    "Not many children live here. Lots of vacation and rental homes. They have occupants changing all the time or they stand empty for months on end. "
  • LWF
    "Sunday afternoon live concerts in the park in winter. Craft fairs. The Christmas boat parade. The fishing club puts on an annual spring clambake."
  • Dm2953
    "Key Colony Beach is a community minded incorporated small city with parks, its own sewer system, police, and safety."

LGBTQ Local Legal Protections

Apartments for Rent

Skip to last item
Skip to first item

Explore by feature - Pet Friendly

Explore by feature - Garage

Explore by feature - Air Conditioning

Explore by feature - Pool

Explore by feature - Washer/dryer

Explore by feature - Outdoor Space

Homes for sale near 420 12th St

Skip to last item
Skip to first item

Off Market Homes Near 420 12th St

Skip to last item
Skip to first item