OFF MARKET

Off market mar 2025 for $2.1M

$2,202,036

Est. refi paymentEst. refi $15,264/mo

•

2,049

sq ft

331 4Th St, Key Colony Beach, FL 33051

About this home

Newly built in 2021 Custom, Steel Frame Construction, by ''Spray Rock''. This home is rated for winds to 250 mph! Enter into the inviting foyer and meander into the wide, open living room, dining room and kitchen. With the large impact windows and slider, you are immediately lured onto the covered patio and decked pool, expanding your living canal side. Attention anglers and boating enthusiasts, if you are looking for a 60 ft dock and 15,000 lb lift, look no further, here it is! Only 5 minutes to OPEN Ocean and less than 10 minutes to the open Gulf via Vaca Cut. Charming, primary suite is bright and airy with slider and views of the pool and canal. Two roomy guest bedrooms, walk in pantry, laundry room and 2 car garage, make this the complete package for your Island Dream Home, Retirement Home or Vacation Getaway in the heart of the Florida Keys.

Single-familyProperty Type

2021Year Built

6,600 sq ftLot Size

$1,075Est. Price/Sq.Ft.

1 car garageParking

Listed by Team Gardner/Langley • Berkshire Hathaway HomeServices Knight & Gardner Realty

Bought with David Grego • Island Breeze Realty, LLC

Redfin checked: a minute ago

•Source:FLKMLS #613089

Redfin Estimate

$2,202,036

$102K since sold in March 2025$83K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 42.4% higher than the average sale price ($1.55M) of 5 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 25, 2026
$1,330,000
C
2 beds2 baths1,646 sq ft
351 5th St, Key Colony, FL 33051
SOLD FEB 3, 2026
$1,600,000
D
3 beds2 baths1,776 sq ft
501 11th St, Key Colony, FL 33051
SOLD AUG 7, 2026
$2,229,000
E
3 beds3 baths2,001 sq ft
641 12th St, Key Colony Beach, FL 33051

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Earn from this home

Refinance

Est. cash available

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Rent

$2,997/mo

Redfin rental estimate

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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

95.3%

+0.0% MoM

Median sale price

$1.8M

$214K MoM

Avg. days on market

204d

20 days MoM

Recently sold homes

3 MoM

Provided by Redfin

Sale history for 331 4Th St

Tax history for 331 4Th St

*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

6,600 Sq. Ft.

Year renovated

2021

Sq. Ft.

1,976

Year built

2021

Style

Single Family Residential

County

Monroe County

APN

0466 33 00073250000100

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Apr 21, 2026.

Property details

Parking

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

Interior

Virtual Tour

Interior Features
Interior Features: Pantry, Quartz Countertops, Walk-in Closet
Flooring: Tile Floor
Windows/Doors: Sliding Glass Doors, Impact Rstnce Window, Impact Rstnce Doors
Heating: Central
Cooling/Heating: Central A/C, Ceiling Fans
Appliances: Washer, Microwave, Range, Refrigerator, Dishwasher, Dryer
Furnished: Furniture Negotiable

Bathroom Information
# of Full Baths: 2

Specialty Room Information
Specialty Rooms: Laundry Room

Exterior

Boat Slip/Dock Information
Dockage: Dock Length: 60
Dockage: Seawall: Cut/Natural
Dockage: Boat Lift
Dockage: Dock: Composite

Exterior Features
Has Pool
Pool Information: In Ground, Decked, Concrete
Porch/Balcony: Open Porch/Balcony, Deck

Security
Patrolled Area

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

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

Lot Information
Acres: 0.15
Zoning: R-1B - Key Colony Single Family
Land Size: Less Than 1/4 Acre
Control Depth: 4
Flood Zone: AE

Building Information
Year Built: 2,021
Sq. Ft. Source: Property Data Card
Building Style: Ground Level
Building Style: Above Flood: Yes
Construction: Other
Roof: Metal Roof

Subdivision/Neighborhood
Subdivision: Key Colony Beach (53.5)
Marathon Neighborhood: Marathon East - Gulf (Airport to Vaca)

Financial

Tax Information
Taxes: $8,576.11
Tax Year: 2,024
Tax Exemptions: Homestead

Utilities

Utility Information
Utilities: FKAA, Buyer to Verify
Has Public Sewer Hook-up

Location

Homeowners Association Information
Association Info: 1st Right of Refusal: No
Association Info: Association Fee $: 0.00
Fee Includes: 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 Right onto 4th Street. Follow down to #331 4th on the Left

Neighborhood Features
Tennis Courts, Bike Paths, Airstrip, Beach

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 1,976
Stories: 1.0
Lot Size: 6,600 square feet
Style: Single Family Residential
Year Built: 2021
Year Renovated: 2021
County: Monroe County
APN: 0466 33 00073250000100

Home facts updated by county records on Apr 21, 2026

Around this home

Schools

Stanley Switlik Elementary School

Public PreK-5 • Assigned • 5.0mi

5/10

Marathon School

Public 6-12 • Assigned • 4.1mi

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

$2.09M – $2.53M

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

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Home values near 331 4Th St

Data from public records.

Address	Redfin Estimate
320 4th St, Key Colony Beach, FL 2 Beds \| 3 Baths \| 2138 Sq. Ft.	$1,172,005
290 4th St, Key Colony Beach, FL 2 Beds \| 2 Baths \| 1075 Sq. Ft.	$915,425

Address	Redfin Estimate
291 4th St, Key Colony Beach, FL 3 Beds \| 2 Baths \| 1622 Sq. Ft.	$1,155,304
371 4th St, Key Colony Beach, FL 4 Beds \| 3 Baths \| 1720 Sq. Ft.	$1,544,689

Address	Redfin Estimate
351 4th St, Key Colony Beach, FL 3 Beds \| 3.5 Baths \| 1989 Sq. Ft.	$1,702,355
350 4th St, Key Colony Beach, FL 5 Beds \| 4.5 Baths \| 3090 Sq. Ft.	$1,517,929

Property information provided by FLKMLS when last listed in 2025. This data may not match . Learn more.

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