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521 8th St

Key Colony, FL 33051

– beds
– baths
1,830 sqft
$546 per sqft
1994 build
– on site

Spacious 4 bed, 4 bath half duplex in the heart of Key Colony Beach. Built in 1994 with over 1,800 sq ft of living space, perfect for full-time living, vacation rental, or investment. Enjoy 37.5 ft of canal frontage with private dock—ideal for boating. Open living area, covered parking, storage, and lush tropical landscaping. Located in a resort-style community with parks, restaurants, golf course, and beach access. Strong rental potential in one of the most desirable neighborhoods in the Florida Keys.

Listing courtesy of MLSM / Move Miami, LLC.

Last checked: Checking… • Last updated May 8, 2025 •

MLS# A11797921 —

The Building

Year Built:

1994
Year Built Details:

Resale
Construction Materials:

Block
Stories:

2
Levels:

Two
Roof:

Barrel, SpanishTile
Foundation Details:

Raised
Exterior Features:

Balcony, Lighting, StormSecurityShutters, TennisCourts
Building Area Total:

3893.0

Interior

Flooring:

Carpet, Terrazzo, Tile

Room Dimensions

Living Area:

1830.0

The Property

Parcel Number:

00075000 000000
Property Type:

ResidentialIncome
Property Subtype:

Duplex
Property Subtype Additional:

Duplex
Zoning Description:

Duplex
Lot Features:

LessThanQuarterAcre
Lot Size Units:

SquareFeet
Frontage Length:

37
Waterfront:

true
Waterfront Features:

CanalAccess, CanalFront, OceanAccess

Listing Agent

Contact info:

Taxes

Tax Year:

2024
Tax Annual Amount:

$9,354
Tax Legal Description:

S 1/2 LOT 22 BK 9 KEY COLONY BEACH FIRST ADDN AMD PLAT PB4-11 SHELTER KEY OR417-586 OR863-1397 OR868-1820AFF SPLIT PER SURVEY-OWNER REQ 2-3-

Heating & Cooling

Heating:

Electric
Heating:

true
Cooling:

CentralAir, Electric
Cooling:

true

Utilities

Utilities:

CableAvailable
Sewer:

PublicSewer

The Community

Subdivision Name:

Key Colony Beach 1 St Add
Pool Features:

None

Parking

Parking Total:

4.0

Explore the Area

My Commute

From

Walk Score®

Provided by WalkScore® Inc.

Bike Score®

Provided by WalkScore® Inc.

Sale history

Date	Event	Source	Price	% Change
5/8/25 May 8, 2025	Listed / Active	MLSM	$999,999

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This multifamily located in Key Colony Beach, FL 33051 is currently for sale for $999,999. 521 8th St is a 1,830 square foot multifamily with – beds and – baths that has been on Estately for 0 days. This multifamily is in the attendance area of Stanley Switlik Elementary School and Marathon Middle High School.

Listing Courtesy of: MLSM and Move Miami, LLC..

Based on information from the MLS MIAMI 2025. All information provided is deemed reliable but is not guaranteed and should be independently verified. MLSM, Estately and their affiliates provide the MLS and all content therein “AS IS” and without any warranty, express or implied. The information included in this listing is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The information on each listing is furnished by the owner and deemed reliable to the best of his/her knowledge, but should be verified by the purchaser. MLSM and Estately assume no responsibility for typographical errors, misprints or misinformation. This property is offered without respect to any protected classes in accordance with the law.