Google street view image for 511 4th St, Key Colony Beach, FL 33051

Off market oct 2021 for $1.7M

$2,087,530

Est. refi paymentEst. refi $12,789/mo

•

3 ba

•

2,445

sq ft

511 4th St, Key Colony Beach, FL 33051

About this home

511 4th St is a 2,445 square foot house on a 6,600 square foot lot with 4 bedrooms and 3 bathrooms. - it last sold on October 12, 2021 for $1,700,000. Based on Redfin's Key Colony Beach data, we estimate the home's value is $2,087,530.

Single-familyProperty Type

1973Year Built

6,600 sq ftLot Size

$854Est. Price/Sq.Ft.

1 car garageParking

Source:Public Records

Redfin Estimate

$2,087,530

$388K since sold in October 2021$4,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 23.9% higher than the average sale price ($1.68M) of 6 comparable homes.

SOLD NOV 2, 2026
$1,525,000
A
5 beds3 baths2,918 sq ft
340-350 E Ocean Dr, Key Colony Beach, FL 33051
SOLD SEP 1, 2026
$1,790,000
B
4 beds3 baths1,860 sq ft
600 12Th St, Key Colony, FL 33051
SOLD OCT 20, 2026
$1,600,000
C
3 beds3 baths2,312 sq ft
11260 6th Avenue Gulf, Marathon, FL 33050
SOLD APR 8, 2026
$1,495,000
D
3 beds3.5 baths2,400 sq ft
200 5Th St, Key Colony, FL 33051
SOLD AUG 31, 2026
$1,450,000
E
4 beds3 baths1,926 sq ft
11295 3rd Avenue Gulf, Marathon, FL 33050
SOLD JUN 30, 2026
$2,246,845
F
3 beds3 baths2,452 sq ft
11399 6th Ave Ocean, Marathon, FL 33050

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Earn from this home

Refinance

Est. cash available

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Rent

$4,021/mo

Redfin rental estimate

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Market trends in Key Colony Beach, FL

Last updated October 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

New listings for sale

$764,000
4 beds2 baths1,380 sq ft
360 3rd St Ocean St, Key Colony, FL 33051
$764,000
4 beds2 baths1,380 sq ft
360 3rd St, Key Colony, FL 33051
(305) 570-4305
See all

Provided by Redfin

Sale history for 511 4th St

Date

Event

Price

Beaches MLS #A11886023

Jun 9, 2026

Listing Removed

—

Sep 27, 2025

Listed

$2,275,000

$930/sq ft

Public Records

Oct 12, 2021

Sold

$1,700,000

$695/sq ft

Public Records

Aug 3, 2020

Sold

$1,375,000

$562/sq ft

Public Records

Oct 4, 2012

Sold

$625,000

$256/sq ft

Public Records

Apr 23, 2004

Sold

$895,000

$366/sq ft

Public Records

Apr 17, 2003

Sold

$450,000

$184/sq ft

Public Records

Aug 7, 2002

Sold

$410,000

$168/sq ft

Public Records

May 1, 2002

Sold

$350,000

$143/sq ft

Public Records

Jan 1, 1987

Sold

$132,500

$54/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$14,139 (−12.9%)

$749,892 + $715,197

$1,465,089

2024

$16,241 (+2.2%)

$934,481 + $712,177

$1,646,658

2023

$15,898 (+12.5%)

2022

$14,126 (+30.1%)

$626,630 + $800,044

$1,426,674

2021

$10,857 (+55.9%)

$318,648 + $719,878

$1,038,526

2020

$6,966 (−1.3%)

$304,590 + $368,615

$673,205

2019

$7,057 (+7.8%)

$304,590 + $368,615

$673,205

2018

$6,545 (+7.7%)

2017

$6,075 (+21.0%)

$320,513 + $370,363

$690,876

2015

$5,020 (+2.1%)

$320,935 + $243,305

$564,240

2014

$4,916

Tax history for 511 4th St

Year

Property tax

Land + Additions

Assessment*

2025

$14,139 (−12.9%)

$749,892 + $715,197

$1,465,089

2024

$16,241 (+2.2%)

$934,481 + $712,177

$1,646,658

2023

$15,898 (+12.5%)

2022

$14,126 (+30.1%)

$626,630 + $800,044

$1,426,674

2021

$10,857 (+55.9%)

$318,648 + $719,878

$1,038,526

2020

$6,966 (−1.3%)

$304,590 + $368,615

$673,205

2019

$7,057 (+7.8%)

$304,590 + $368,615

$673,205

2018

$6,545 (+7.7%)

2017

$6,075 (+21.0%)

$320,513 + $370,363

$690,876

2015

$5,020 (+2.1%)

$320,935 + $243,305

$564,240

2014

$4,916

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

Property details

Interior

Bathroom Information
# of Full Baths: 3

Heating & Cooling
Heating Type: Forced Air

Exterior

Exterior Information
Physical Condition: Average
Floor Construction Type: Concrete
Foundation Type: Slab
Exterior Wall: Custom
Roof Shape Type: Gable/Hip
Building Type: Residential

Property Information
Subdivision Name: KEY COLONY BEACH
Living Sq. Ft: 2,445
Gross Sq. Ft: 2,937
Ground Floor Sq. Ft: 1,441
Building Sq. Ft: 2,445
# of Units: 1
# of Stories: 2
Legal Description: BK 4 LT 23 KEY COLONY BEACH PB3-120 SHELTER KEY OR328-132 OR609-401 OR806-1866 OR813-1323/24 OR818-1980 OR1000-2064 OR1780-1695/98 OR1780-1699 OR1780-1700 OR1805-2053 OR1877-1717 OR1996-253 OR2592-639/40 OR3035-1332 OR3131-0361

Parking & Garage Information
Parking Type: Finished Block Garage
Garage/Parking Sq. Ft: 400
Garage / Carport Type: Finished Block

Lot Information
# of Buildings: 1
Land Sq. Ft: 6,600
Legal Lot Number: 23
Legal Block Number: 4
Municipality Type: KCB
Municipality Name: CITY OF KEY COLONY BEACH
Acres: 0.1515
Depth Footage: 110
Front Footage: 60
Zoning Code: INC
County Use Description: SINGLE FAMILY RES
State Use Description: SINGLE FAMILY

Location Information
Parcel Location Influence: Canal

Financial

Assessor Information
Assessment Year: 2025
Tax District County: CITY OF KEY COLONY BEACH
Tax Area: CITY OF KEY COLONY BEACH

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,445
Stories: 2.0
Lot Size: 6,600 square feet
Style: Single Family Residential
Year Built: 1973
Year Renovated: 2013
County: Monroe County
APN: 0466 33 00073350000000

Home facts updated by county records on Jul 10, 2026

Around this home

Schools

K - 12
Preschool & daycare

Stanley Switlik Elementary School

Public PreK-5 • Assigned • 5.0mi

4/10

Marathon School

Public 6-12 • Assigned • 4.1mi

4/10

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

$1.98M – $2.40M

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

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New listings for sale in 33051

$764,000

4 beds2 baths1,380 sq ft

360 3rd St Ocean St, Key Colony, FL 33051

Spacious backyard • Patio • Storage

$764,000

4 beds2 baths1,380 sq ft

360 3rd St, Key Colony, FL 33051

Spacious backyard • Patio • Storage

(305) 570-4305

Home values near 511 4th St

Data from public records.

Address	Redfin Estimate
510 4th Street, Key Colony Beach, FL 2 Beds \| 2 Baths \| 885 Sq. Ft.	$811,068
500 4th Street, Key Colony Beach, FL 2 Beds \| 2 Baths \| 885 Sq. Ft.	$796,764
480 4th Street, Key Colony Beach, FL 2 Beds \| 2 Baths \| 885 Sq. Ft.	$708,599
451 4th Street, Key Colony Beach, FL 2 Beds \| 2.5 Baths \| 1155 Sq. Ft.	$1,434,261
520 4th Street, Key Colony Beach, FL 2 Beds \| 2 Baths \| 885 Sq. Ft.	$744,404
431 4Th Road, Key Colony, FL 2 Beds \| 2 Baths \| 1169 Sq. Ft.	$853,861
490 4Th Street, Key Colony, FL 2 Beds \| 2 Baths \| 885 Sq. Ft.	$688,719

Address	Redfin Estimate
490 4th Street, Key Colony Beach, FL 2 Beds \| 2 Baths \| 885 Sq. Ft.	$726,162
470 4th Street, Key Colony Beach, FL 2 Beds \| 2 Baths \| 885 Sq. Ft.	$753,861
491 4th Street, Key Colony Beach, FL 3 Beds \| 3 Baths \| 1260 Sq. Ft.	$1,182,440
431 4th Street, Key Colony Beach, FL 2 Beds \| 2 Baths \| 945 Sq. Ft.	$869,318
450 4Th, Key Colony, FL 2 Beds \| 2 Baths \| 1392 Sq. Ft.	$1,066,699
4th Street, Key Colony Beach, FL 2 Beds \| 2 Baths \| 1428 Sq. Ft.	$714,067
500 4th Street, Key Colony, FL 2 Beds \| 2 Baths \| 885 Sq. Ft.	$902,711

Address	Redfin Estimate
530 4th Street, Key Colony Beach, FL 4 Beds \| 4.5 Baths \| 2124 Sq. Ft.	$3,766,150
450 4th Street, Key Colony Beach, FL 3 Beds \| 2 Baths \| 1392 Sq. Ft.	$1,108,591
531 4th Street, Key Colony Beach, FL 3 Beds \| 2 Baths \| 3076 Sq. Ft.	$3,821,834
471 4th Street, Key Colony Beach, FL 3 Beds \| 2.5 Baths \| 3338 Sq. Ft.	$1,649,209
530-531 4th Street, Key Colony, FL 2 Beds \| 2 Baths \| 1585 Sq. Ft.	$1,998,342
520 4Th Street, Key Colony, FL 2 Beds \| 2 Baths \| 885 Sq. Ft.	$772,647
491 4th Street, Key Colony, FL 2 Beds \| 3 Baths \| 1260 Sq. Ft.	$1,267,438

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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 511 4th St

Tax history for 511 4th St

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 33051

Home values near 511 4th St

More real estate resources