360 12th St, Marathon, FL 33051
Property image
Property image
SOLD
JUN 23, 2026

360 12th St
Marathon, FL 33051

  • 5 Beds
  • 5.5 Baths
  • 3,578 sqft (on 0.42 acres)

$3,840,000

Last Sold: Jun 23, 2026
4% below list $4M
$1,073/sqft
Est. Refi. Payment $22,400/mo*

$3,840,000

Last Sold: Jun 23, 2026
4% below list $4M
$1,073/sqft
Est. Refi. Payment $22,400/mo*
5 Beds
5.5 Baths
3,578 sqft
(on 0.42 acres)

Home Value

Trulia Estimate
$3.86M
Since last month
$1K (0%)
Since last year
Increased$1M (+40.1%)
Since last sale
Increased$12K (+0.3%)
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 +161% in the last 10 years
MonthEstimated value
2026
August 2026$3.85M
July 2026$3.85M
June 2026$3.84M
May 2026$3.67M
April 2026$3.65M
March 2026$3.64M
February 2026$4M
January 2026$4.05M
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

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
0.09
Single-Family Home
$3,580,000
09/17/25
5
4.5
2,741
0.08
Single-Family Home
$3,430,000
06/16/26
4
4
3,680
0.09
Single-Family Home
$3,700,000
07/20/26
5
4
4,188
0.20
Single-Family Home
$3,700,000
05/01/26
5
5.5
3,422
0.13
Single-Family Home
$3,200,000
06/30/26
4
4
2,649
0.24
Single-Family Home
$4,775,000
07/28/26
5
4
3,580
0.25
Single-Family Home
$7,400,000
07/20/26
4
4.5
4,888
0.11
Single-Family Home
$2,050,000
06/26/26
5
3
2,347
0.25
Single-Family Home
$11,200,000
02/23/26
5
5
6,420

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
0.00
$3,845,000
3
3
3,200
Off Market
0.07
$1,100,000
2
3
1,288
For Sale
0.07
$999,000
3
2
1,548
For Sale
0.07
$1,761,400
4
4
2,151
Off Market
0.07
$1,565,500
3
3
1,534
Off Market
0.06
$3,700,000
4
4
4,369
For Sale
0.08
$2,949,000
6
4
3,392
For Sale
0.08
$3,430,000
4
4
3,680
Recently Sold
0.09
$989,000
2
2
1,062
For Sale
0.07
$2,044,900
3
2.5
2,440
Off Market
0.09
$3,700,000
5
4
4,188
Recently Sold

Local Information

  • Map ViewExplore the area around 360 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
1977
Lot Size
0.42 acres
Living Area
3,578 sqft
Price/Sqft
$1,073/sqft
Parking
Garage
HOA
None

About this House

A Truly Rare Waterfront Estate in Key Colony Beach — Privacy, Scale, and Turnkey Perfection
Perfectly centered on two full lots, this exceptional Key Colony Beach residence offers a rare level of privacy and space paired with 165 feet of deep-water canal frontage & premier boating access.
Fully renovated in 2024, the two-story home is thoughtfully designed for entertaining, guest comfort & everyday coastal living. The first floor serves as a private guest and recreation level, featuring a large bedroom & a spacious nearby full bathroom with double vanities & a separate shower and toilet room. A comfortable TV and lounge area is complemented by a bar, refrigerator, & game table, creating an ideal space for relaxing or hosting guests. This level also includes a one-car garage, a dedicated half-garage for bikes and gear, air-conditioned storage ideal for dive or fishing equipment, & a rare full-length pass-through garage connecting the front of the home directly to the waterfront, with a golf-cart-sized rear garage door providing seamless dock access.
The second floor is the main living level & showcases an expansive open-concept kitchen, great room, and oversized dining area with seating for twelve. Filled with natural light, the space is equally suited for large gatherings or relaxed everyday living. The chef's kitchen features premium cabinetry, high-end appliances, and a generous island. Four additional bedrooms are located on this level each with its own en-suite bathroom. The primary suite includes a private balcony, walk-in closet, double vanity, private water closet, and spa-style shower, with a generously sized laundry room also located on this level.
Outdoor living defines the property, with two boat lifts rated for 24K & 15K pounds, quick access to both the ocean and Gulf, and a completely remodeled heated saltwater pool surrounded by expansive covered and open patio areas. The east-facing rear exposure offers beautiful morning light & shaded afternoon A Truly Rare Waterfront Estate in Key Colony Beach  Privacy, Scale, and Turnkey Perfection

This exceptional Key Colony Beach residence is perfectly centered on two full lots, offering an extraordinary level of privacy and space paired with 165 feet of deep-water canal frontage and premier boating access.

Fully renovated in 2024, the two-story home is thoughtfully designed to balance entertaining, guest comfort, and everyday coastal living. The first floor functions as a private guest and recreation level, featuring a large bedroom and a spacious nearby full bathroom with double vanities and a separate shower and toilet room. A comfortable TV and lounge area is complemented by a bar, refrigerator, and game table, creating an ideal space for relaxing or hosting guests. The ground level also includes a one-car garage, an additional half-garage dedicated to bikes and gear, and air-conditioned storage ideal for dive equipment or fishing gear. A rare full-length pass-through garage connects the front of the home directly to the waterfront, with a golf-cart-sized rear garage door providing seamless dock accessan exceptional feature for serious anglers and boaters.

The second floor serves as the main living level and showcases an expansive open-concept kitchen, great room, and oversized dining area with seating for twelve. Designed for both functionality and flow, the space is filled with natural light and is equally suited for large gatherings or relaxed everyday living. The chef's kitchen features premium cabinetry, high-end appliances, and a generous island. Four additional bedrooms are located on this level, each with its own en-suite bathroom, offering privacy and comfort for family and guests. The primary suite is a true retreat, featuring a private balcony, walk-in closet, double vanity, private water closet, and spa-style shower. A generously sized laundry room is also conveniently located on this level.

Outdoor living is a defining feature of the property. The home sits on 165 feet of waterfront with two boat lifts, one rated for 24,000 pounds and the other for 15,000 pounds, providing exceptional flexibility for a range of vessels. Quick access to both the ocean and the Gulf makes this an ideal choice for avid boaters and anglers. The completely remodeled heated saltwater pool is surrounded by expansive patio areas, both covered and open, creating multiple spaces for entertaining, relaxing, or enjoying the tropical Keys lifestyle year-round. The home's orientation further enhances its appeal, offering beautiful morning light and shaded afternoons when returning from the water.

Located within the highly sought-after and walkable community of Key Colony Beach, the home is surrounded by amenities including pickleball and tennis courts, a par-3 golf course, multiple parks, and a true neighborhood atmosphere rarely found in the Keys.
360 12th St, Marathon, FL 33051 is a 5 bedroom, 6 bathroom, 3,578 sqft single-family home built in 1977. It last sold for $3,840,000 on Jun 23, 2026 (4% below the $3,995,000 asking price). It is currently off market. The Trulia Estimate is $3,856,200, with a rent estimate of $7,360/month.
Last check for updates: about 3 hours ago
Listed by Jessica Borraccino, (305) 619-2648
Coldwell Banker Schmitt Real Estate Co.
Bought with: Ally Kelley, Ocean Sotheby's International
Source: FLKMLS, MLS#617684

Home Details for 360 12th St

Interior Features

Beds & Baths
Number of Bedrooms: 5Number of Bathrooms: 6Number of Bathrooms (full): 5Number of Bathrooms (half): 1
Dimensions and Layout
Living Area: 3578 Square Feet
Appliances & Utilities
Utilities: Elect Separate MeterAppliances: Washer, Dryer, Dishwasher, Refrigerator, Range, Oven, MicrowaveDishwasherDryerMicrowaveRefrigeratorWasher
Heating & Cooling
Has CoolingAir Conditioning: Central Air,Ceiling Fans(s)
View
No View
Security
Security: Security Guard

Exterior Features

Exterior Home Features
Patio / Porch: Open Porch/BalconyFencing: FencedExterior: Bar, Lighting, Outdoor Kitchen, StorageHas a Private Pool
Parking & Garage
Has a GarageNo Attached GarageParking: Storage
Pool
Pool: In Ground, ConcretePool
Frontage
WaterfrontOn Waterfront

Property Information

Year Built
Year Built: 1977
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family Residence
Building
Construction Materials: Combo ConstructionNot a New Construction
Property Information
Condition: Updated/RemodeledParcel Number: 00077580000000

Price & Status

Price
List Price: $3,995,000Price Per Sqft: $1,073/sqft

Active Status

MLS Status: Closed

Location

Direction & Address
City: Key ColonyCommunity: Key Colony Bch 2nd Addn (53.5)

Building

Building Area
Building Area: 3578 Square Feet

Community

Community Features: Beach, Bike Paths

HOA

HOA Fee Includes: NoneNo HOA

Lot Information

Lot Area: 0.42 acres

Offer

Listing Terms: Cash, Conventional

Miscellaneous

Mls Number: 617684

Additional Information

BeachBike Paths

Price and Tax history

DateEventPrice
Jun 23, 2026
Source: FLKMLS #617684
Sold
$3,840,000
Jun 23, 2026
Source: FLKMLS #617684
Pending
$3,995,000
May 12, 2026
Source: MLKAR #617684
Contingent
$3,995,000
Mar 18, 2026
Source: Key West AOR #617684
PriceChange
$3,995,000
Price decreased by 9%
Dec 12, 2025
Source: Key West AOR #617684
Listed For Sale
$4,400,000

Market trends in Key Colony Beach

Last updated July 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
Sale-to-List Price
Price per sq ft
Available listings
60
1
MoM

Around this home

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

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.

Frequently asked questions about 360 12th St

  • What is 360 12th St estimated to be worth?
    Trulia's estimated value for 360 12th St in Marathon, FL is $3,856,200.
  • What is the price history for 360 12th St?
    360 12th St in Marathon, FL last sold for $3,840,000 in June 2026.
  • Is Marathon a buyer's or seller's market?
    Marathon is currently a buyer's market, based on recent for-sale activity.
  • What are the closest schools to 360 12th St?
    The closest schools to 360 12th St in Marathon, FL are Marathon School (Middle/High, rated 5/10), Stanley Switlik Elementary School (Pre-K, rated 5/10).
  • Does 360 12th St have air conditioning?
    Yes, 360 12th St in Marathon, FL has air conditioning.
  • Does 360 12th St have a pool?
    Yes, 360 12th St in Marathon, FL has a pool.

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