Judy Cinque - Key Colony Beach Realty
220 Sadowski Causeway
Key Colony Beach, FL 33051
$3,600,000 $19,326 est/mo Sourced by Back At You
1401 51st Street Gulf,MARATHON, FL 33050
MARATHON, FL 33050
Description
Private Waterfront Estate in the Florida Keys This gated, one-acre estate offers the ultimate blend of privacy, nature, and waterfront living in the heart of the Florida Keys. Nestled among lush, mature tropical landscaping, the property feels like a secluded island retreat. As you pass through the gates, you are welcomed by a beautifully manicured paradise with a coral-cut shoreline, a firepit at the water's edge, and panoramic sunset views over the open water. Just offshore, two small uninhabited islands provide a unique opportunity for exploration. The 3-bedroom, 3-bathroom home is designed for comfort and indoor-outdoor living, with an open concept living room, kitchen, and dining area that seamlessly flows into multiple outdoor living spaces. The upper level includes two spacious bedrooms and two bathrooms, while the conforming lower level offers an additional bedroom, bath, sitting area, and a separate entranceperfect for guests or an in-law suite. A tool/storage room on the ground floor adds to the convenience of this beautiful estate. The wraparound balcony that surrounds the entire home includes several screened-in areas, enhancing the flow of indoor-outdoor living. Updated with a new metal roof in 2024, the home features stainless steel appliances and breathtaking water views. The property boasts approximately 520 feet of shoreline and a custom dock, including an 84-foot by 4-foot dock with a 21-foot by 8-foot extension and a double floating dock for two jet skisperfect for boating enthusiasts. Covered parking for four cars is available under the elevated home, with additional parking along the entrance way leading to a circular driveway. Set on three originally platted lots (12, 13, and 14), the property offers the flexibility to separate, redevelop, or keep as a private compound. Located just a short walk from fine dining, shopping, and more, this rare waterfront offering combines serenity, convenience, and endless possibilities.
Details
| MLS # | 613880 |
|---|---|
| Listing Type | For Sale |
| Style | House |
| Sub-Type | Resale |
| Status | Pending |
| Year | 1974 |
| Days On Site | 550 |
| Listing Provided By | Coldwell Banker Schmitt Real Estate Co. | Joshua James Mothner |
Features
| Bed(s) | 3 |
|---|---|
| Bath(s) | 3 Total |
| SQ Feet | 2,428 |
| Zoning | RM - Residential Medium |
| Acreage | 1.05 |
| Water Front | Yes |
| Property View | Open Water View, Bay |
Taxes
| Property | 13150 |
|---|
Area Information
| State | FL |
|---|---|
| County | Monroe |
| City | MARATHON |
| Zip Code | 33050 |
| Area | 13 7 Mile Bridge to Sombrero Bch Rd E & W |
| Community Name | Woodburns Sub (49.5) |
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MLS Internet Data Exchange (IDX) information 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, and that the data is deemed reliable but is not guaranteed accurate by the Florida Keys Board of Realtors.
The data relating to real estate for sale on this web site come s in part from the Internet Data Exchange program of the Marathon and Lower Keys Association of REALTORS®, Inc. MLS. Real Estate listings held by brokerage firms other than Key Colony Beach Realty, Inc. are marked with the MLS logo and detailed information about them includes the name of the listing broker’s office.
The data relating to real estate for sale on this web site come s in part from the Internet Data Exchange program of the Marathon and Lower Keys Association of REALTORS®, Inc. MLS. Real Estate listings held by brokerage firms other than Key Colony Beach Realty, Inc. are marked with the MLS logo and detailed information about them includes the name of the listing broker’s office.
Contact
Learn More About This Property
| State | FL |
|---|---|
| County | Monroe |
| City | MARATHON |
| Zip Code | 33050 |
| Area | 13 7 Mile Bridge to Sombrero Bch Rd E & W |
| Community Name | Woodburns Sub (49.5) |
Nearby Listings (Within 1/10 mile)
Price: $2.7M - $4.5M
sqft: 1,500 - 3,000
Listing Updated: May 26, 2026 at 9:10:47 PM PDT
Judy Cinque | | SL649582
Main - 220 Sadowski Causeway, Key Colony Beach, FL 33051
© Copyright 2026, Back At You
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Judy Cinque | | SL649582
Main - 220 Sadowski Causeway, Key Colony Beach, FL 33051
MLS Internet Data Exchange (IDX) information 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, and that the data is deemed reliable but is not guaranteed accurate by the Florida Keys Board of Realtors.
The data relating to real estate for sale on this web site come s in part from the Internet Data Exchange program of the Marathon and Lower Keys Association of REALTORS®, Inc. MLS. Real Estate listings held by brokerage firms other than Key Colony Beach Realty are marked with the MLS logo and detailed information about them includes the name of the listing broker’s office.
Listing Information Last Updated August 28, 2026 at 8:38:11 AM PDT