SOLD FEB 10, 2026

Off Market Feb 2026 for $535K

$705,265

•

1,031

sq ft

300 3rd St, Key Colony, FL 33051

About this home

Discover this charming and affordable 2-bedroom, 2-bath half duplex with an open-concept living, dining, and kitchen area - perfect for relaxed island living. Featuring a freshly painted exterior, new A/C (2025), lovingly maintained and stilted. Plenty of outdoor living areas and covered parking, a one-car garage, plus space for a trailer or RV, all of your tropical toys. A spacious primary suite offers a walk-in closet, and a comfortable layout which is ideal for your family home, employee housing, or Keys weekend getaway. Located just steps from the Cabana Pool and Beach Club, you can easily walk or bike around the entire city to enjoy its many amenities, including restaurants, marina, post office, golf, pickleball, tennis, bocce ball, three playgrounds, basketball, and the beautiful Sunset Park. Conveniently located near several airports: 10 minutes to Marathon Airport, just over 1 hour to Key West International, 2 hours to Miami International, and 2.5 hours to Fort Lauderdale International. Enjoy the best of Keys living in this welcoming home; comfortable, convenient, and move-in ready! Located in the very heart of the Keys: Key Colony Beach!

Single-familyProperty Type

1982Year Built

3,300 sq ftLot Size

$684Est. Price/Sq.Ft.

1 spaceParking

Listed by Karen Raspe • Ocean Sotheby's International

Listed by Ally Kelley • Ocean Sotheby's International

Bought with Caroline Wagner-Earles • Coldwell Banker Schmitt RE Co.

Redfin checked: a few seconds ago

•Source:FLKMLS #617359

Redfin Estimate

$705,265

$170K since sold in February 2026$39K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 14.5% lower than the average sale price ($825K) of 6 comparable homes.

SOLD JUL 8, 2026
$775,000
A
2 beds2 baths885 sq ft
191 5Th St, Key Colony Beach, FL 33051
SOLD JUL 20, 2026
$800,000
B
2 beds2 baths1,023 sq ft
741 9Th St, Key Colony Beach, FL 33051
SOLD JUN 3, 2026
$1,000,000
C
2 beds2 baths1,269 sq ft
580 9Th St, Key Colony Beach, FL 33051
SOLD APR 1, 2026
$1,175,000
D
2 beds2 baths1,433 sq ft
171 3rd St, Key Colony, FL 33051
SOLD FEB 24, 2026
$700,000
E
2 beds2 baths854 sq ft
471 9Th St, Key Colony Beach, FL 33051
SOLD JUN 22, 2026
$497,000
F
2 beds1 bath750 sq ft
251 2nd St, Key Colony Beach, FL 33051

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Earn from this home

Rent

$2,126/mo

Redfin rental estimate

List your home for rent

Market trends in 33051, FL

Last updated August 2026

Buyer's Market

Seller's Market

Buyer's market

Sale-to-List Price

96.4%

0.0% MoM

Median sale price

$535K

$0 MoM

Avg. days on market

84d

0 days MoM

Recently sold homes

0 MoM

Provided by Redfin

Sale history for 300 3rd St

Date

Event

Price

FLKMLS #617359

Feb 10, 2026

Sold

$535,000

$519/sq ft

Dec 24, 2025

Contingent

—

Nov 17, 2025

Listed

$555,000

$538/sq ft

FLKMLS #510323

Nov 23, 2015

Listing Removed

—

Feb 7, 2002

Listed

$187,500

$182/sq ft

FLKMLS #512666

Mar 26, 2003

Sold

$180,000

$175/sq ft

Aug 23, 2002

Listed

$187,500

$182/sq ft

Public record

Beds

—

Baths

—

Stories

—

Lot width

—

Lot depth

—

Lot size

—

Year renovated

—

Sq. Ft.

—

Year built

—

Style

Single Family Residential

County

Monroe County

APN

00072590-000100

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Nov 18, 2025.

Property details

Parking

Parking / Garage Information
Vehicle Storage: Garage, RV Parking Open, Covered Parking, Trailer Storage, Off Street Parking, Guest Parking, Attached, Carport
Vehicle Storage: Car(s): 1

Interior

Virtual Tour

Interior Features
Interior Features: Pantry, Window Treatments, Smoke Alarms
Flooring: Tile Floor
Windows/Doors: Other Windows/Doors
Cooling/Heating: Central A/C, Ceiling Fans
Appliances: Washer, Microwave, Range, Refrigerator, Dishwasher, Dryer
Furnished: Furnished

Bathroom Information
# of Full Baths: 2

Exterior

Boat Slip/Dock Information
Dockage: None

Exterior Features
Shutters: Panel

Security
Patrolled Area

Property Features
Waterfront Type: None
Waterview: No Waterview

Property Information
Property Condition: Updated/Remodeled
Deed Restrictions: Unknown
Pets: Pets Allowed
Rentals Allowed: Yes
Min Rental Days: 7

Lot Information
Acres: 0.08
Zoning: R-2A - Key Colony Two Family
Land Size: Less Than 1/4 Acre
Flood Zone: AE

Building Information
Year Built: 1,982
Sq. Ft. Source: Property Data Card
Building Style: Above Flood: Yes
Building Style: Stilt Column Height: Medium - 5Ft - 9Ft
Construction: CBS
Roof: Shingle Roof

Subdivision/Neighborhood
Subdivision: Key Colony Bch 1st Addn Amd Plat (53.5)
Marathon Neighborhood: Marathon East - Gulf (Airport to Vaca)

Financial

Tax Information
Taxes: $4,577.26
Tax Year: 2,025
Tax Exemptions: None

Utilities

Utility Information
Utilities: FKAA, Cable Available, Buyer to Verify, Community Sewer Plant
Has Public Sewer Hook-up

Location

Homeowners Association Information
Association Info: 1st Right of Refusal: No
Association Info: Association Fee $: 0.00
Fee Includes: Water, None

Location Information
Side: Ocean
Mile Marker: 53.50
Directions: Overseas Hwy Mile Marker 53.5 turn at light onto Sadowski/KCB Causeway. Bear left onto E. Ocean Dr - Turn Left onto 3rd St - Follow to #300 3rd on right

Neighborhood Features
Community Boat Ramp, Bike Paths, Airstrip, Beach, Tennis Courts

Public facts

Beds: —
Baths: —
Sq. Ft.: —
Stories: —
Lot Size: —
Style: Single Family Residential
Year Built: —
Year Renovated: —
County: Monroe County
APN: 00072590-000100

Home facts updated by county records on Nov 18, 2025

Around this home

Schools

Stanley Switlik Elementary School

Public PreK-5 • Assigned • 5.1mi

5/10

Marathon School

Public 6-12 • Assigned • 4.2mi

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, 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

$671,000 – $812,000

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

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Home values near 300 3rd St

Data from public records.

Address	Redfin Estimate
330 3rd Street, Key Colony Beach, FL 3 Beds \| 2 Baths \| 1300 Sq. Ft.	$711,704
311 3rd Street, Key Colony Beach, FL 2 Beds \| 1 Baths \| 882 Sq. Ft.	$664,084

Address	Redfin Estimate
310 3rd Street, Key Colony Beach, FL 2 Beds \| 2 Baths \| 1031 Sq. Ft.	$638,304
290 3rd Street, Key Colony Beach, FL 4 Beds \| 4 Baths \| 1536 Sq. Ft.	$916,911

Address	Redfin Estimate
340 3rd Street, Key Colony Beach, FL 4 Beds \| 5 Baths \| 2471 Sq. Ft.	$961,123
260 3rd Street, Key Colony Beach, FL 2 Beds \| 2 Baths \| 1573 Sq. Ft.	$1,045,193

Property information provided by FLKMLS when last listed in 2025. 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 33051, FL

Sale history for 300 3rd St

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

Home values near 300 3rd St

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