OFF MARKET

Off market jun 2013 for $485K

$1,077,297

Est. refi paymentEst. refi $3,796/mo

•

1,440

sq ft

520 9th St, Key Colony Beach, FL 33051

About this home

Multi-familyProperty Type

1971Year Built

4,133 sq ftLot Size

$748Est. Price/Sq.Ft.

Listed by Jo Ann Cook • Ocean Sotheby's International

Bought with Kate Mudge • American Caribbean Real Estate - Middle Keys

Redfin checked: 2 minutes ago

•Source:FLKMLS #560142

Redfin Estimate

$1,077,297

$592K since sold in June 2013$3,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 1.9% higher than the average sale price ($1.06M) of 6 comparable homes.

SOLD MAY 22, 2026
$1,100,000
A
3 beds3 baths1,511 sq ft
351 8Th St, Key Colony, FL 33051
SOLD SEP 25, 2026
$995,000
B
2 beds2 baths1,288 sq ft
350 11th St, Key Colony Beach, FL 33051
SOLD OCT 16, 2025
$1,142,500
C
3 beds3 baths1,472 sq ft
601 8Th St, Key Colony Beach, FL 33051
SOLD MAR 10, 2026
$1,075,000
D
3 beds3 baths1,770 sq ft
650 11Th St, Key Colony, FL 33051
SOLD SEP 14, 2026
$1,232,000
E
2 beds3 baths1,176 sq ft
651 9th St, Key Colony Beach, FL 33051
SOLD JUL 20, 2026
$800,000
F
2 beds2 baths1,023 sq ft
741 9Th St, Key Colony Beach, FL 33051

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Earn from this home

Refinance

Est. cash available

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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 520 9th St

Date

Event

Price

FLKMLS #555580

May 15, 2020

Listing Removed

—

Jul 22, 2011

Listed

$497,000

$345/sq ft

FLKMLS #552682

May 15, 2020

Listing Removed

—

Jul 26, 2010

Listed

$575,000

$399/sq ft

FLKMLS #549400

May 15, 2020

Listing Removed

—

Aug 2, 2009

Listed

$720,000

$500/sq ft

FLKMLS #542312

May 15, 2020

Listing Removed

—

Jul 31, 2007

Listed

$849,000

$590/sq ft

FLKMLS #531452

May 15, 2020

Listing Removed

—

Nov 8, 2005

Listed

$1,250,000

$868/sq ft

FLKMLS #560142

Jun 24, 2013

Sold

$485,000

$337/sq ft

Jan 23, 2013

Listed

$499,999

$347/sq ft

FLKMLS #557316

Jan 25, 2013

Listing Removed

—

Feb 20, 2012

Listed

$597,000

$415/sq ft

FLKMLS #522360

Nov 1, 2004

Sold

$585,000

$406/sq ft

Jun 1, 2004

Listed

$595,000

$413/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$7,140 (+4.2%)

2024

$6,851 (+6.5%)

2023

$6,435 (+11.3%)

2022

$5,784 (+10.8%)

2021

$5,218 (+7.6%)

$261,412 + $212,943

$474,355

2020

$4,852 (+0.3%)

$247,980 + $206,072

$454,052

2019

$4,835 (+14.0%)

$247,980 + $206,072

$454,052

2018

$4,240 (−10.5%)

$247,980 + $159,422

$407,402

2017

$4,737 (+7.7%)

$247,980 + $225,276

$473,256

2015

$4,397 (+3.4%)

$247,658 + $217,796

$465,454

2014

$4,254

Tax history for 520 9th St

Year

Property tax

Land + Additions

Assessment*

2025

$7,140 (+4.2%)

2024

$6,851 (+6.5%)

2023

$6,435 (+11.3%)

2022

$5,784 (+10.8%)

2021

$5,218 (+7.6%)

$261,412 + $212,943

$474,355

2020

$4,852 (+0.3%)

$247,980 + $206,072

$454,052

2019

$4,835 (+14.0%)

$247,980 + $206,072

$454,052

2018

$4,240 (−10.5%)

$247,980 + $159,422

$407,402

2017

$4,737 (+7.7%)

$247,980 + $225,276

$473,256

2015

$4,397 (+3.4%)

$247,658 + $217,796

$465,454

2014

$4,254

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

Public record

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

4,133

Year renovated

2001

Sq. Ft.

1,440

Year built

1971

Style

Multi-Family (2-4 Unit)

County

Monroe County

APN

0566 33 00075230000100

Parking Spaces

—

Basement

—

Accessible

HOA Dues

—

Garage

Features

Views, Waterfront, Pool

Last updated by owner on Nov 5, 2025.

Property details

Parking

Parking / Garage Information
Vehicle Storage: Off Street Parking

Interior

Virtual Tour

Interior Features
Flooring: Tile Floor
Windows/Doors: Sliding Glass Doors
Cooling/Heating: Ceiling Fans, Heat, Central A/C
Appliances: Dishwasher, Washer, Refrigerator, Range, Oven, Microwave, Dryer
Furnished: Furnished

Bathroom Information
# of Full Baths: 3

Specialty Room Information
Specialty Rooms: Utility Room

Exterior

Boat Slip/Dock Information
Dockage: Dock Length: 37

Exterior Features
Has Pool
Pool Information: Fiberglass, In Ground

Security
Patrolled Area

Property Features
On Waterfront
Waterfront Type: Canal Front
Waterview: Canal View

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

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

Building Information
Year Built: 1,971
Sq. Ft. Source: Property Data Card
Building Style: Ground Level
Construction: CBS
Roof: Tar/Gravel Roof

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

Financial

Tax Information
Taxes: $3,640.12
Tax Year: 2,012
Tax Exemptions: None

Utilities

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

Location

Homeowners Association Information
Fee Includes: None

Location Information
Side: Ocean
Mile Marker: 53.50
Directions: Sadowski Causeway to West Ocean, turn right on West Ocean. Proceed to 9th Street and turn right. Sign on property.

Neighborhood Features
Beach, Tennis Courts, Community Pool, Clubhouse

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 1,440
Stories: 1.0
Parking Spaces: —
Basement: No
Accessible: No
Lot Size: 4,133 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1971
Year Renovated: 2001
County: Monroe County
APN: 0566 33 00075230000100
HOA Dues: —
Garage: No
Features: Views, Waterfront, Pool

Home facts updated by owner on Nov 5, 2025

Around this home

Schools

Stanley Switlik Elementary School

Public PreK-5 • Assigned • 4.6mi

5/10

Marathon School

Public 6-12 • Assigned • 3.8mi

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

$1.02M – $1.24M

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

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Home values near 520 9th St

Data from public records.

Address	Redfin Estimate
571 9th Street, Key Colony Beach, FL 3 Beds \| 3 Baths \| 1418 Sq. Ft.	$1,171,202
510 9th Street, Key Colony Beach, FL 4 Beds \| 4 Baths \| 1977 Sq. Ft.	$1,542,404

Address	Redfin Estimate
501 9th Street, Key Colony Beach, FL 2 Beds \| 2 Baths \| 1260 Sq. Ft.	$1,138,055
481 9th Street, Key Colony Beach, FL 2 Beds \| 1 Baths \| 885 Sq. Ft.	$725,982

Address	Redfin Estimate
521 9th Street, Key Colony Beach, FL 2 Beds \| 2 Baths \| 1418 Sq. Ft.	$1,107,682
561 9th Street, Key Colony Beach, FL 2 Beds \| 2 Baths \| 1418 Sq. Ft.	$1,141,593

Property information provided by FLKMLS when last listed in 2013. This data may not show owner updates. Learn more.

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About this home

Redfin Estimate

Earn from this home

Market trends in Key Colony Beach, FL

Sale history for 520 9th St

Tax history for 520 9th St

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

Home values near 520 9th St

More real estate resources