580 & 590 10th Street, Key Colony, FL 33051
$3,250,000
Property Type:
Residential
Bedrooms:
7
Baths:
7
Square Footage:
4,478
Lot Size (sq. ft.):
8,250
Status:
Active
Current Price:
$3,250,000
List Date:
12/22/2025
Last Modified:
5/03/2026
Listing Details MLS# 617788
Location, Tax & Legal
- Street #
- 580 & 590
- Street Name
- 10th
- Street Suffix
- Street
- Key/Island
- Key Colony
- State/Province
- FL
- Zip Code
- 33051
- County
- Monroe
- Subdivision
- Key Colony Bch 1st Addn Amd Plat (53.5)
- Area
- 17 - Vaca Cut - Both Sides Holiday Inn/Key Colony
- City
- KEY COLONY
- Mile Marker
- 53.5
- Marathon Neighborhood
- Marathon East - Gulf (Airport to Vaca)
- Side
- Ocean
- Flood Zone
- Zone AE EL 7
- Alternate Key #
- 1081558
- Handicap Access
- No
- Parcel #
- 00075930-000000
- Zoning
- R-2A - Key Colony Two Family
- Deed Restrictions
- Unknown
- Legal
- BK10 LT 48 KEY COLONY BEACH FIRST ADDN AMENDED PLAT PB-4-11 SHELTER KEY OR341-309/10 OR566-245 OR722-402 OR1394-1921D/C
- Taxes
- 19308
- Tax Year
- 2025
- Pub Sewer HkUp
- Yes
Contract Information
- Listing Board
- Marathon/Lower Keys
- As is Rght to Inspct
- Yes
General Property Description
- Realtor.COM Type
- Multi-family
- Style
- Duplex
- Waterfront
- Yes
- Control Depth
- 5
- Pool
- Yes
- Year Built
- 1985
- Lot SqFt
- 8250
- Lot Sqft Source
- Tax Records
- Living Apx SqFt
- 4478
- SqFt Source
- Property Data Card
- Total Bedrooms
- 7
- Full Baths
- 7
- Total Baths
- 7
- Rentals Allowed
- Yes
- Min Rental Days
- 7
Association Info
- Mandatory Home Owners Asc
- No
- 1st Right of Refusal
- No
- Association Fee $
- 0
Dockage
- Dock Length
- 75
- Dock
- Concrete
More Information
Building Style
- Above Flood
- Unknown
- Stories
- 2 Stories
Pool Info
- Heated
- Yes
- In Ground
- Yes
Remarks & Misc
- Remarks – Consumer
- Exceptional canal-front opportunity with proven income potential. This expansive 7-bedroom, 7-bath residence offers outstanding flexibility as a legal duplex with an interior lockout, allowing it to function seamlessly as a large single-family home or as two separate living spaces. The configuration includes a generous 5BR/4BA main residence paired with a private 2BR/2BA guest wing, topped off by a convenient pool bath located in the game room, making it ideal for multigenerational living, guests, or vacation rental use. The main living space welcomes you with a dramatic two-story entry, an open-concept great room, multiple dining areas, wet bar, and a well-appointed kitchen that flows to a waterside balcony. The lower-level unit features its own open living and kitchen area, providing privacy and versatility. Four bedrooms are ensuite, complemented by 2 primary suites overlooking the water. Recent upgrades include complete concrete spalling repairs and a fresh exterior repaint, adding peace of mind and refreshed curb appeal. Mediterranean-inspired design elements are carried throughout, along with impact windows and doors, multiple balconies, and inviting indoor-outdoor living spaces. Outside, enjoy a heated pool, spa, covered poolside lanai, and 75 feet of concrete dockage with quick boating access to both the Atlantic Ocean and the Gulf of America. Additional features include a two-car garage and ample off-street parking. This property has a strong, established vacation rental history and is currently an active rental.
- Directions
- From HWY 1 travel down Sadowski Cswy, turn right on West Ocean, turn right on 10th St, house is on the right midway down 10th.
Fee Includes
- None
- Yes
Tax Exemptions
- None
- Yes
Appliances
- Dishwasher
- Yes
- Dryer
- Yes
- Microwave
- Yes
- Oven
- Yes
- Range
- Yes
- Refrigerator
- Yes
- Stainless Steel Appliance(s)
- Yes
- Washer
- Yes
Pets
- Pets Allowed
- Yes
Cooling
- Ceiling Fans(s)
- Yes
- Central Air
- Yes
Waterfront
- Canal Front
- Yes
Waterview
- Canal View
- Yes
Floor
- Carpet
- Yes
- Tile
- Yes
Neighborhood Feature
- Beach
- Yes
- Bike Paths
- Yes
- Tennis Courts
- Yes
Interior Features
- Built-in Cabinets
- Yes
- Drapes/Blinds Incl
- Yes
- Entrance Foyer
- Yes
- Granite Counter Top
- Yes
- Smoke Alarms
- Yes
- Wet Bar
- Yes
- Window Treatments
- Yes
Specialty Rooms
- Laundry Room
- Yes
Windows/Doors
- Impact Rstnce Doors
- Yes
- Impact Rstnce Window
- Yes
Vehicle Storage
- Garage
- Yes
- Guest Parking
- Yes
- Off Street Parking
- Yes
Security
- Patrolled Area
- Yes
Construction
- CBS
- Yes
Land Size
- Less Than 1/4 Acre
- Yes
Utilities
- Buyer to Verify
- Yes
- Elect Separate Meter
- Yes
- FKAA
- Yes
- Municipal Sewer
- Yes
Porch/Balcony
- Open Porch/Balcony
- Yes
- Patio
- Yes
Title
- Title Ins - Buyer
- Yes
Exterior Features
- Fencing
- Yes
- Hot Tub
- Yes
- Lanai
- Yes
- Lighting
- Yes
- Outdoor Shower
- Yes
- Storage
- Yes
Roof
- Metal Roof
- Yes
Property Features
Fee Includes:
None
Tax Exemptions:
None
Waterfront:
Canal Front
Waterview:
Canal View
Vehicle Storage:
Garage; Guest Parking; Off Street Parking
Cooling:
Ceiling Fans(s); Central Air
Utilities:
Buyer to Verify; Elect Separate Meter; FKAA; Municipal Sewer
Interior Features:
Built-in Cabinets; Drapes/Blinds Incl; Entrance Foyer; Granite Counter Top; Smoke Alarms; Wet Bar; Window Treatments
Specialty Rooms:
Laundry Room
Appliances:
Dishwasher; Dryer; Microwave; Oven; Range; Refrigerator; Stainless Steel Appliance(s); Washer
Exterior Features:
Fencing; Hot Tub; Lanai; Lighting; Outdoor Shower; Storage
Pool Info:
In Ground
Construction:
CBS
Floor:
Carpet; Tile
Roof:
Metal Roof
Pets:
Pets Allowed
Neighborhood Feature:
Beach; Bike Paths; Tennis Courts
Security:
Patrolled Area
Land Size:
Less Than 1/4 Acre
Title:
Title Ins - Buyer
Listing Office:
Berkshire Hathaway HomeServices Keys Real Estate
Last Updated: May - 03 - 2026
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