360 12th St

Key Colony Beach, FL 33051

$4,400,000
Price
5
Beds
3,578 Sq. Ft.
$1,230 / Sq. Ft.
3,578
Sq. Ft.
$1,230
per Sq. Ft.
a dining room with furniture a chandelier and wooden floor
an aerial view of a house with a yard swimming pool and outdoor seating
a view of a yard with plants and palm trees
DJI_20251208114559_0180_D
a front view of a house with garden
a living room with furniture and a table
a living room with furniture wooden floor and a window
a bedroom with a bed and a dresser
a bathroom with a granite countertop sink toilet and shower
R1040973
a view of entryway and hall with wooden floor
an entryway of a house with wooden floor
R1050003
a kitchen with stainless steel appliances kitchen island granite countertop a dining table chairs refrigerator and cabinets
R1050018
R1050023
a living room with fireplace furniture and a flat screen tv
a living room with furniture and a view of kitchen
a view of a dining room with furniture and wooden floor
a dining room with furniture window and wooden floor
a living room with lots of furniture and a view of kitchen
a view of a storage & utility room
a living room with lots of furniture and kitchen view
a bathroom with a toilet a sink and a mirror
a utility room with sink dryer and washer
R1050128
a bedroom with a bed and a window
a spacious bedroom with a bed and wooden floor
a bathroom with a toilet a sink and a mirror
R1050153
a large bedroom with a large bed and a chandelier
a bathroom with a double vanity sink and a mirror
a bathroom with a sink and a mirror
a bathroom with a sink and a mirror
a bedroom with a bed a table and chair
a view of a hallway to a livingroom with wooden floor and stairs
a view of a dining room with furniture window and outside view
R1050203
a view of a balcony with potted plants
a bedroom with furniture and a large window
a bathroom with a sink toilet and shower
a bedroom with a bed a mirror and a window
a bathroom with a sink toilet and shower
a view of a hallway to the house
a living room with furniture a flat screen tv and a table
a work room with furniture and a large window
a view of a dining room with furniture window and outside view
a view of a patio with table and chairs potted plants
a kitchen with stainless steel appliances kitchen island granite countertop a stove a sink and a white cabinets
a room with lots of table and chairs
a view of a dining room with furniture
a dining room with furniture and window
a view of swimming pool with outdoor seating and house in the background
R1040867
R1040688
a view of swimming pool with outdoor seating and plants
a view of a house with swimming pool
a view of a garden with sitting area
a view of a park with plants and palm trees
a front view of a house with a yard and garage

Description

A Truly Rare Waterfront Estate in Key Colony Beach -- Privacy, Scale, and Turnkey PerfectionPerfectly 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 Truly Rare Waterfront Estate in Key Colony Beach -- Privacy, Scale, and Turnkey PerfectionPerfectly 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 afternoons
  1. Listed by Jessica Borraccino • Coldwell Banker Schmitt Real Estate Co.

Property Details for 360 12th Street

Waterfront
Canal Front
Waterfront
Yes
Zoning
R-1A - Key Colony Single Family
Subdivision
Key Colony Bch 2nd Addn (53.5)
Vehicle Storage
Garage, Trailer Storage, Off Street Parking
Pets
Other See Remarks
LISTING UPDATED: 12/12/2025 04:27 PM

Property Details for 360 12th Street

StatusActive
MLS #617684
Days on Market23
Taxes$19,336 / year
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeResidential / Single Family
Year Built1977
Lot Size0.42 AC / 18,438 SF
CountyMonroe County

Location

Listing Courtesy of Coldwell Banker Schmitt Real Estate Co.
Add your commute

Building Information for 360 12th Street

Stories2Year Built1977Building Size-Lot Size0.42 AC / 18,438 SF

Payment Calculator

$23,353 per month

30 year fixed, 6.28% Interest

Principal and Interest

$21,742

Property Taxes

$1,611

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

Property Information for 360 12th Street

Summary
Location and General Information
  • Waterview: Canal View
  • Area: 17 - Vaca Cut - Both Sides Holiday Inn/Key Colony
  • Absolute Longitude: 81.025224
  • Control Depth: 5
  • Off Shore Island: No
  • Listing Board: Marathon/Lower Keys
  • Side: Ocean
  • Mile Marker: 53.5
  • Marathon Neighborhood: Marathon East - Gulf (Airport to Vaca)
  • Neighborhood Feature: Tennis Courts, Bike Paths, Airstrip, Beach
  • Key/Island: Key Colony
Taxes and HOA Information
  • Association Info: Mandatory Home Owners Asc: No
  • Association Info: 1st Right of Refusal: No
  • Fee Includes: None
  • Furnished: Negotiable
  • Tax Year: 2024
  • Tax Exemptions: None
Property
Lot Information
  • Acres: 0.42
  • Parcel #: 00077580-000000
  • Land Size: More than 1 Lot
Property and Assessments
  • Legal: KEY COLONY BEACH SECOND ADDN SHELTER KEY PB4-94 S 62.5' LOT 62 & LOT 63 & N 25' LOT 64 BK 12 OR186-480 OR389-12 OR412-1
  • MLS Approved: Y
  • Bank Owned: No
  • SqFt Source: Property Data Card
  • Flood Zone: AE
  • Rentals Allowed: With Restrictions
  • Deed Restrictions: No
  • Picture Count: 61
  • Document Count: 0
  • Building Style: Above Flood: Unknown
  • Property Condition: Updated/Remodeled
  • Security: Patrolled Area
  • Title: Negotiable
Utilities
  • Utilities: FKAA, Elect Separate Meter, Buyer to Verify
  • Pub Sewer HkUp: Yes
  • Species List: No
  • Pool: Yes
  • Pool Info: Heated: Yes
  • Pool Info: In Ground, Concrete
  • Porch/Balcony: Open Porch/Balcony
Interior and Exterior Features
Interior Features
  • Interior Features: Wet Bar, Storage, Walk-in Closet(s), Pantry, Split Bedroom
  • Appliances: Washer, Microwave, Oven, Range, Refrigerator, Dishwasher, Dryer
Exterior Features
  • Roof: Metal Roof
  • Dockage: Dock Length: 165
  • Dockage: Dock: Concrete
  • Construction: Combo Construction
  • Dockage: Boat Lift
  • Exterior Features: Bar, Storage, Outdoor Kitchen, Lighting, Fencing
  • Windows/Doors: Impact Rstnce Window, Impact Rstnce Doors

Property History for 360 12th Street

DateEvent & SourcePriceAppreciation
Dec 3, 2025

Listed (Active)

FKMLS #617684

$4,400,000—
Aug 25, 2022

Sold

MiamiRE #A11214871

$2,500,000—
Aug 25, 2022

Sold

FKMLS #600863

$2,500,000—
Aug 22, 2022

Sold (Public Record)

Public Record #1497730226

$2,500,000—
Aug 22, 2022

Sold (Public Record)

Public Record #1497730226

$2,500,000—
Aug 2, 2022

Pending

MiamiRE #A11214871

—
Aug 2, 2022

Pending

FKMLS #600863

—
Aug 2, 2022

Backup Contract

MiamiRE #A11214871

—
Jul 31, 2022

Backup Contract

FKMLS #600863

—
Jul 21, 2022

Pending

FKMLS #600863

—
Jul 21, 2022

Backup Contract

FKMLS #600863

—
Jul 20, 2022

Price Change

MiamiRE #A11214871

$3,250,000—
May 31, 2022

Listed (Active)

MiamiRE #A11214871

$3,500,000—
May 4, 2022

Price Change

FKMLS #600863

$3,500,000—
May 4, 2022

Listed (Active)

FKMLS #600863

$3,250,000—
Jul 28, 2004

Sold

FKMLS #519463

$1,900,000—
Apr 25, 2004

Pending

FKMLS #519463

—
Dec 10, 2003

Listed (Active)

FKMLS #519463

$1,995,000—
DateEvent & SourcePrice
12/03/2025

Listed (Active)

FKMLS #617684

$4,400,000
08/25/2022

Sold

MiamiRE #A11214871

$2,500,000
08/25/2022

Sold

FKMLS #600863

$2,500,000
08/22/2022

Sold (Public Record)

Public Record #1497730226

$2,500,000
08/22/2022

Sold (Public Record)

Public Record #1497730226

$2,500,000
08/02/2022

Pending

MiamiRE #A11214871

—
08/02/2022

Pending

FKMLS #600863

—
08/02/2022

Backup Contract

MiamiRE #A11214871

—
07/31/2022

Backup Contract

FKMLS #600863

—
07/21/2022

Pending

FKMLS #600863

—
07/21/2022

Backup Contract

FKMLS #600863

—
07/20/2022

Price Change

MiamiRE #A11214871

$3,250,000
05/31/2022

Listed (Active)

MiamiRE #A11214871

$3,500,000
05/04/2022

Price Change

FKMLS #600863

$3,500,000
05/04/2022

Listed (Active)

FKMLS #600863

$3,250,000
07/28/2004

Sold

FKMLS #519463

$1,900,000
04/25/2004

Pending

FKMLS #519463

—
12/10/2003

Listed (Active)

FKMLS #519463

$1,995,000

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 360 12th Street

Taxable ValueLand$1,289,922Additions$1,496,538Total$2,786,460
Tax Record2024$19,336 ($1,611 / month)
Home Facts
Beds4Baths2Total Finished SqFt3,578 SqFtAbove Grade Finished SqFt3,578 SqFtStories2Lot Size18,438 SqFtStyleSingle Family ResidenceYear Built1977Year Renovated2017CountyMONROEAPN00077580-000000

Schools near 360 12th Street

This home is within Monroe.
Rating
School
Type
Grades
Distance
Stanley Switlik Elementary School
Public - PK to 5
Marathon School
Public - 6 to 12
Coral Shores High School
Public - 9 to 12
Big Pine Academy
Charter - PK to 5
Rating
School
Distance
Stanley Switlik Elementary School
PublicPK to 5

Marathon School
Public6 to 12

Coral Shores High School
Public9 to 12

Big Pine Academy
CharterPK to 5

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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More information about 360 12th Street, Key Colony Beach, FL 33051

360 12th Street is a single family home for sale in Key Colony Beach, FL 33051. This property was listed for sale on December 3, 2025 by Coldwell Banker Schmitt Real Estate Co., it's currently listed at $4,400,000. It has been on the market for a total of 23 days and was last sold on August 25, 2022. This listing's school district is Monroe. Nearby schools include Stanley Switlik Elementary School, Marathon School and Coral Shores High School. 360 12th Street is a 5-bed, 6-bath, 3,578 sqft single family home built in 1977.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity. Subject to change at any time. Compass makes no guarantee, warranty or representation regarding the accuracy of any waterfront feature, water view or waterfront view.

Listing Courtesy of Coldwell Banker Schmitt Real Estate Co.

Based on information from one of the following Multiple Listing Services: Beaches Multiple Listing Service, Inc., Martin County REALTORS® of the Treasure Coast, Inc., Miami Association of REALTORS®. Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by Beaches Multiple Listing Service, Inc., Martin County REALTORS® of the Treasure Coast, Inc., Miami Association of REALTORS® is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.