OFF MARKET

Off market oct 2017 for $675K

$1,174,901

Est. refi paymentEst. refi $4,058/mo

•

1,570

sq ft

600 10th St, Key Colony Beach, FL 33051

About this home

If a single family home doesn't fit your budget, this 2003 built half duplex could be the perfect fit. Ground level (above flood) with an open floor plan, 3 bedrooms, 2 baths and almost 1600 sq. ft. Known as an ''Ellison'' duplex, it's one of the most sought after styles on Key Colony Beach. Currently a successful weekly vacation rental too! Excellent boating access to the Ocean or Gulf in 5 minutes! A garage to hold your fishing or dive gear! 37.5' concrete dock, wide canal with nice water views. Spacious deck for relaxing or grilling out and east facing with shade in the afternoons. Perfect investment property, 2nd home or full time residence! Key Colony Beach is a resort community and its own City, walk or bike to several restaurants, golf, tennis, oceanfront park and more!

Single-familyProperty Type

2003Year Built

4,125 sq ftLot Size

$748Est. Price/Sq.Ft.

1 car garageParking

Listed by Amy Puto • Coldwell Banker Schmitt Real Estate Co.

Bought with Natalie Ardis • Coldwell Banker Schmitt Real Estate Co.

Redfin checked: 2 minutes ago

•Source:FLKMLS #575665

Redfin Estimate

$1,174,901

$500K since sold in October 2017$1,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4% lower than the average sale price ($1.22M) of 6 comparable homes.

SOLD JUL 9, 2026
$1,275,000
A
3 beds2 baths1,642 sq ft
292 Sadowski, KEY COL BCH, FL 33051
SOLD APR 24, 2026
$1,300,000
B
3 beds2 baths1,540 sq ft
270 Sadowski, Key Colony, FL 33051
SOLD SEP 15, 2026
$1,075,000
C
3 beds2.5 baths2,000 sq ft
180 9th St, Key Colony Beach, FL 33051
SOLD JUN 3, 2026
$1,000,000
D
2 beds2 baths1,269 sq ft
580 9Th St, Key Colony Beach, FL 33051
SOLD SEP 25, 2026
$995,000
E
2 beds2 baths1,288 sq ft
350 11th St, Key Colony Beach, FL 33051
SOLD JUN 5, 2026
$1,700,000
F
3 beds2 baths1,539 sq ft
1279 91St Court Ocean, Marathon, FL 33050

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Earn from this home

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$2,701/mo

Redfin rental estimate

List your home for rent

Market trends in Key Colony Beach, FL

Last updated September 2026

Buyer's Market

Seller's Market

Buyer's market

Sale-to-List Price

94.1%

1.2% MoM

Median sale price

$1.3M

$516K MoM

Avg. days on market

203d

1 days MoM

Recently sold homes

1 MoM

Provided by Redfin

Sale history for 600 10th St

Date

Event

Price

FLKMLS #575665

Oct 23, 2017

Sold

$675,000

$430/sq ft

May 21, 2017

Listed

$695,000

$443/sq ft

FLKMLS #547115

Apr 30, 2009

Sold

$525,000

$334/sq ft

Nov 25, 2008

Listed

$587,000

$374/sq ft

FLKMLS #547117

Mar 27, 2009

Listing Removed

—

Nov 25, 2008

Listed

$1,174,000

$748/sq ft

FLKMLS #546125

Sep 10, 2008

Listing Removed

—

Jul 30, 2008

Listed

$725,000

$462/sq ft

FLKMLS #546120

Oct 8, 2008

Listing Removed

—

Jul 29, 2008

Listed

$1,680,000

$1,070/sq ft

FLKMLS #535127

Jul 8, 2006

Listing Removed

—

Mar 18, 2006

Listed

$965,000

$615/sq ft

FLKMLS #535129

Jul 8, 2006

Listing Removed

—

Mar 18, 2006

Listed

$1,930,000

$1,229/sq ft

FLKMLS #514504

Jun 5, 2003

Sold

$540,000

$344/sq ft

Jan 8, 2003

Listed

$559,000

$356/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$8,823 (+2.7%)

2024

$8,595 (+7.4%)

2023

$8,000 (+15.2%)

2022

$6,945 (+9.7%)

2021

$6,330 (+4.9%)

$260,906 + $324,703

$585,609

2020

$6,032 (−1.2%)

$247,500 + $328,921

$576,421

2019

$6,105 (+5.1%)

$247,500 + $328,921

$576,421

2018

$5,810 (+13.1%)

$247,500 + $329,015

$576,515

2017

$5,139 (−0.4%)

$247,500 + $270,176

$517,676

2016

$5,160 (+9.1%)

$247,500 + $264,089

$511,589

2015

$4,730 (+6.8%)

$247,500 + $264,089

$511,589

2014

$4,428

Tax history for 600 10th St

Year

Property tax

Land + Additions

Assessment*

2025

$8,823 (+2.7%)

2024

$8,595 (+7.4%)

2023

$8,000 (+15.2%)

2022

$6,945 (+9.7%)

2021

$6,330 (+4.9%)

$260,906 + $324,703

$585,609

2020

$6,032 (−1.2%)

$247,500 + $328,921

$576,421

2019

$6,105 (+5.1%)

$247,500 + $328,921

$576,421

2018

$5,810 (+13.1%)

$247,500 + $329,015

$576,515

2017

$5,139 (−0.4%)

$247,500 + $270,176

$517,676

2016

$5,160 (+9.1%)

$247,500 + $264,089

$511,589

2015

$4,730 (+6.8%)

$247,500 + $264,089

$511,589

2014

$4,428

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

4,125 Sq. Ft.

Year renovated

2008

Sq. Ft.

1,570

Year built

2003

Style

Single Family Residential

County

Monroe County

APN

0566 33 00075920000100

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Apr 21, 2026.

Property details

Parking

Parking / Garage Information
Vehicle Storage: Attached, Off Street Parking, Open Parking, Guest Parking, Garage

Interior

Interior Features
Interior Features: Drapes/Blinds Incl, Storage
Flooring: Tile Floor
Windows/Doors: Awning Windows, Sliding Glass Doors
Cooling/Heating: Ceiling Fans, Central A/C
Appliances: Dishwasher, Washer, Stainless Steel Appl, Refrigerator, Range, Oven, Microwave, Dryer
Furnished: Furnished

Bathroom Information
# of Full Baths: 2

Exterior

Boat Slip/Dock Information
Dockage: Dock Length: 37
Dockage: Dock: Concrete

Exterior Features
Porch/Balcony: Open Porch/Balcony
Shutters: Accordion

Security
Patrolled Area

Property Features
Accessibility Features: None
On Waterfront
Waterfront Type: Canal Front
Waterview: Canal View

Property Information
Deed Restrictions: Yes
Pets: Pets Allowed
Rentals Allowed: Yes
Min Rental Days: 7

Lot Information
Acres: 0.09
Zoning: R-2A - Key Colony Two Family
Land Size: Less Than 1/4 Acre
Control Depth: 5
Flood Zone: AE

Building Information
Year Built: 2,003
Sq. Ft. Source: Property Data Card
Building Style: Ground Level
Building Style: Stories: 1
Building Style: Above Flood: Yes
Construction: CBS
Roof: Tile Roof

Subdivision/Neighborhood
Subdivision: Key Colony Bch 1st Addn Amd Plat (53.5)

Financial

Tax Information
Taxes: $5,160.71
Tax Year: 2,016
Tax Exemptions: None

Financial Information
Terms: Buyer Obtain Finance, No Seller Finance

Utilities

Utility Information
Utilities: Cable Available, Municipal Sewer, FKAA
Pre-Wired: Cable
Has Public Sewer Hook-up

Location

Multi-Unit Information
# of Total Units: 1

Homeowners Association Information
Association Info: 1st Right of Refusal: No
Fee Includes: None

Location Information
Side: Ocean
Mile Marker: 53.50
Directions: US 1 to Sadowski Causeway. Turn right on W. Ocean Drive, then right on 10th Street. Home is on the right side.

Neighborhood Features
Beach, Other Area Features, Tennis Courts, Fire Hydrant, Bike Paths

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 1,570
Stories: 1.0
Lot Size: 4,125 square feet
Style: Single Family Residential
Year Built: 2003
Year Renovated: 2008
County: Monroe County
APN: 0566 33 00075920000100

Home facts updated by county records on Apr 21, 2026

Around this home

Schools

Stanley Switlik Elementary School

Public PreK-5 • Assigned • 4.5mi

5/10

Marathon School

Public 6-12 • Assigned • 3.7mi

5/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

Heat Factor

We're working on getting current and accurate heat risk information for this home.

10/10 Wind Factor

99% chance of strong winds in next 30 years

1/10 Air Factor

0 unhealthy days expected this year, 0 days in 30 years

Provided by First Street

Historical weather

Key Colony Beach, FL • 33051

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 10 hours in June and 7.3 hours in December, placing it above the U.S. average for solar exposure.

10 hrs

7.3 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.12M – $1.35M

Sell confidently with a local market expert in Key Colony Beach. 3 minutes to get started.

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Home values near 600 10th St

Data from public records.

Address	Redfin Estimate
581 10th St, Key Colony Beach, FL 6 Beds \| 4 Baths \| 3248 Sq. Ft.	—
621 10th St, Key Colony Beach, FL 3 Beds \| 2 Baths \| 2562 Sq. Ft.	$1,693,239

Address	Redfin Estimate
561 10th St, Key Colony Beach, FL 3 Beds \| 2 Baths \| 1333 Sq. Ft.	$1,007,564
611 10th St, Key Colony Beach, FL 2 Beds \| 2 Baths \| 1023 Sq. Ft.	$762,986

Address	Redfin Estimate
571 10th St, Key Colony Beach, FL 2 Beds \| 2 Baths \| 1023 Sq. Ft.	$969,104
641 10th St, Key Colony Beach, FL 2 Beds \| 2 Baths \| - Sq. Ft.	$849,800

Property information provided by FLKMLS when last listed in 2017. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in Key Colony Beach, FL

Sale history for 600 10th St

Tax history for 600 10th St

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

Home values near 600 10th St

More real estate resources