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$1,399,000
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Property Description
Welcome to your waterfront dream home in the heart of Key Colony Beach! This beautifully renovated 3 bedroom, 3 bathroom single-family home is a private tropical retreat. Situated on a wide basin just off the Atlantic, this property is a boater's paradise. Enjoy two private boat slips, a brand new Trex dock, fish cleaning station and a 10,000 lb boat lift. Relax in your own backyard oasis featuring a saltwater pool with both heater and chiller, a spacious tiki hut for entertaining, and lush landscaping that enhances the serene island ambiance. The large screened-in porch, complete with a stunning epoxy floor, provides an inviting space to lounge while enjoying gentle breezes and waterfront views. Inside, the home was fully remodeled between 2017 and 2018 with no detail spared. The open-concept kitchen is outfitted with quartz countertops, stainless steel appliances, custom cabinetry, and stylish tile finishes. Porcelain tile flooring flows throughout, and every window and door is impact-rated for peace of mind. 3 bedrooms and 3 baths offer plenty of space for your and guests. The one-car garage adds extra storage space for gear, bikes, or paddleboards. As an active vacation rental, this home is turnkey and income-producing, with a strong rental history and excellent guest appeal. Brand new HVAC system and Hot Water heater. Rubber seal on roof was done in 2023 with new gutters added.
Full Property Details
Full Property Details for 8 Sadowski Causeway
General
- Price: $1,399,000
- Taxes: $9,217 (2025)
- Status: Active
- Type: Single Family
- Source: Greater_Miami
- MLS ID: A12068464
- Updated: 9/4/2026
- Added to Site: 113 day(s) ago
Interior
- Interior Features: First Floor Entry, Split Bedroom, Florida Room
- Appliances: Dishwasher, Dryer, Electric Range, Electric Water Heater, Microwave, Refrigerator, Washer
- Flooring: Tile
Rooms
Bathrooms
- Total Bathrooms: 3
- Full Bathrooms: 3
Bedrooms
- Total Bedrooms: 3
- Bedroom Features: Primary Bath Shower
Other Rooms
- Living Room: Florida Room Sq. Ft.
Additional Information
- Pool: Yes
- Pool Description: In Ground, Fiberglass, NA
- Security/Safety: Smoke Detector
Exterior
- Deck/Patio: Screened Porch
Parking
- Garage: Yes
- Garage Spaces: 1
- Covered Spaces: 1
- Parking Features: Additional Spaces Available, Driveway
Location
- Area: Marina Subd No 2
- County: Monroe County
- Subdivision: MARINA SUBD NO 2
- Building Name: MARINA SUBD NO 2
- Driving Directions: US-1 to Sadowski Cswy follow down home will be on the left hand side prior to the marina.
- Direction Faces: West
Community
- Community Name: Marina Subd No 2
Heating & Cooling
- Air Conditioning: Yes
- Cooling Type: Ceiling Fan(s), Central Air
- Heating Type: Electric
Utilities
- Sewer: Public Sewer
- Water: Municipal Water
Structural Information
- Architectural Style: Attached, One Story
- Structure Type: House
- Detached/Attached: Detached
- Construction: CBS Construction
- Roof: Tar & Gravel Roof
- Doors: High Impact Doors
- Building Size: 2175
- Square Feet: 1,440
- Living Area: 1,440 Sq. Ft.
- Year Built: 1960
Lot Features
- Property View: Canal
- Lot Size (Sq. Ft.): 4,400
- Frontage Feet: 40
- Lot Features: Less Than 1/4 Acre Lot
- Zoning: RU-2
- Fencing (Description): Fenced
Water Features
- Water Front: Yes
- Water View: Yes
- Water Front Desc.: Ocean Access, Canal Front, Canal Width 121 Feet Or More
Financial Considerations
- Price Per Sq. Ft.: $971.53
- Tax Amount: $9,217
- Tax Year: 2025
- Terms: All Cash, Conventional
Disclosures and Reports
- Legal Description: LT 21 MARINA SUBD PLAT NO 2 SHELTER KEY PB4-53 OR142-536 OR143-391 OR160-415 OR608-172 OR610-728 OR757-1081 OR772-930 OR775-33 OR775-34 OR84
- Restrictions: Ok To Lease With Res
- Inclusions: Boatlift, Private Dock
- Property ID: 00079640-000000
Listed by Coldwell Banker Schmitt Real E
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Schools
Schools serving 8 Sadowski Causeway
School District:Monroe County School District, Middle Torch Key, FL
| Name | Grades | Distance |
|---|---|---|
Stanley Switlik Elementary School 3400 Overseas Highway, Marathon, FL 33050 | PK-5 | 4.8 mi |
Marathon School 350 Sombrero Beach Road, Marathon, FL 33050 | 6-12 | 4 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 8 Sadowski Causeway
Date
Details
Price
Change
Source
5/22/2026
Listed
$1,399,000
154.36%
MLS
3/26/2014
Sold
$550,000
—
Public Record
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Tax History
Tax History for 8 Sadowski Causeway
Year
Property Taxes
Change
Tax Assessment
Change
2025
$9,217
2%
$934,652
-6%
2024
$9,068
7%
$997,365
3%
2023
$8,498
25%
$972,695
53%
2021
$6,813
-11%
$633,897
-27%
2022
$7,674
13%
$868,953
45%
2021
$6,813
18%
$599,669
2%
2019
$5,770
-1%
$590,318
2%
2018
$5,856
5%
$581,507
-1%
2017
$5,590
7%
$587,541
16%
2016
$5,228
7%
$505,055
9%
2015
$4,887
27%
$465,318
51%
2014
$3,835
18%
$307,388
10%
2013
$3,243
—
$279,444
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 8 Sadowski Causeway
8 Sadowski Cswy, Marathon, FL 33051 (MLS# A12068464) is a Single Family property with 3 bedrooms and 3 full bathrooms. 8 Sadowski Cswy is currently listed for $1,399,000 and was received on May 22, 2026. Want to learn more about 8 Sadowski Cswy? Do you have questions about finding other Single Family real estate for sale in Marathon? You can browse all Marathon real estate or contact a Coldwell Banker agent to request more information.

