391 10th Street, Key Colony, FL 33051

$1,185,000

Property Type: Residential Bedrooms: 3 Baths: 3 Square Footage: 2,166 Lot Size (sq. ft.): 4,125 Status: Active

Current Price: $1,185,000 List Date: 10/07/2026 Last Modified: 10/08/2026

Overview

Description

Discover exceptional waterfront living in the heart of Key Colony Beach. This concrete constructed half duplex offers over 2,100 square feet with three bedrooms, three bathrooms inside and 37.5 feet of dockage. A rare and highly desirable interior staircase welcomes you from the above flood first floor, seamlessly connecting both levels of the home. Downstairs is completely built above flood and features a one bedroom, one bathroom suite with additional living area, ideal for guests or extended family. Step through sliding glass doors to a spacious wood deck and 37.5 feet of dockage. Enjoy the ocean breeze and shade under the lush buttonwood tree. Upstairs, enjoy open concept living with a bright and airy kitchen, dining, and living area designed for effortless entertaining. The primary suite boasts a recently renovated bathroom with step-in tiled shower, quartz topped double vanity and tiled flooring. Nearby, a second guest bedroom offers its own ensuite for added comfort and privacy. ... (Read more)

Listing Details MLS# 621529

Location, Tax & Legal

Street #: 391
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
Off Shore Island: No
Mile Marker: 53.5
Marathon Neighborhood: Marathon East - Gulf (Airport to Vaca)
Senior Community YN: No
Side: Ocean
Flood Zone: AE
Alternate Key #: 1081990
Parcel #: 00076300-000000
Zoning: R-2A - Key Colony Two Family
Deed Restrictions: Unknown
Legal: BK 11 NLY 1/2 LT 14 KEY COLONY BEACH FIRST ADDN AMENDED PLAT PB4-11 SHELTER KEY
Taxes: 6525.23
Tax Year: 2025
Pub Sewer HkUp: Yes

Contract Information

Listing Board: Marathon/Lower Keys
As is Rght to Inspct: Yes
Species List: No

General Property Description

Realtor.COM Type: Residential - Single Family
Style: Half Duplex
Waterfront: Yes
Control Depth: 5
Pool: No
Year Built: 1988
Lot SqFt: 4125
Acres: 0.1
Living Apx SqFt: 2166
SqFt Source: Property Data Card
Total Bedrooms: 3
Full Baths: 3
Total Baths: 3
Rentals Allowed: Yes
Min Rental Days: 7
Total Units: 0

Association Info

Mandatory Home Owners Asc: No
1st Right of Refusal: No
Association Fee $: 0

Dockage

Dock Length: 37
Dock: Wood

More Information

Building Style

Above Flood: Yes
Stories: 2 Stories

Remarks & Misc

Remarks – Consumer: Discover exceptional waterfront living in the heart of Key Colony Beach. This concrete constructed half duplex offers over 2,100 square feet with three bedrooms, three bathrooms inside and 37.5 feet of dockage. A rare and highly desirable interior staircase welcomes you from the above flood first floor, seamlessly connecting both levels of the home. Downstairs is completely built above flood and features a one bedroom, one bathroom suite with additional living area, ideal for guests or extended family. Step through sliding glass doors to a spacious wood deck and 37.5 feet of dockage. Enjoy the ocean breeze and shade under the lush buttonwood tree. Upstairs, enjoy open concept living with a bright and airy kitchen, dining, and living area designed for effortless entertaining. The primary suite boasts a recently renovated bathroom with step-in tiled shower, quartz topped double vanity and tiled flooring. Nearby, a second guest bedroom offers its own ensuite for added comfort and privacy. Recent updates include a newer AC, 2018 standing seam metal roof, and termite tenting with a transferable warranty, providing peace of mind for years to come. With its rare downstairs living, expansive square footage, and thoughtfully designed layout, this property presents a unique opportunity to own a well-cared-for waterfront residence in one of the most desirable areas of the Florida Keys. Key Colony Beach welcomes primary and seasonal guests with the 9-hole par 3 golf course, tennis and pickle ball courts, Sunset Park, City Hall, police department, multiple restaurants, boat ramp and marina. Enjoy the island lifestyle with amenities galore!
Directions: US1 to Sadowski Causeway, right on W Ocean Drive, right on 10th Street. Sign on property on the left 1/2 way down the street.

Fee Includes

None: Yes

Tax Exemptions

Homestead: Yes

Appliances

Dishwasher: Yes
Disposal: Yes
Dryer: Yes
Microwave: Yes
Oven: 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

Laminate: Yes
Tile: Yes

Neighborhood Feature

Bike Paths: Yes
Community Boat Ramp: Yes
Tennis Courts: Yes

Interior Features

Drapes/Blinds Incl: Yes
Entrance Foyer: Yes
Quartz Countertops: Yes
Storage: Yes

Windows/Doors

Casement: Yes
Double Hung Windows: Yes
Sliding Glass Doors: Yes

Vehicle Storage

Guest Parking: Yes
Open Parking: Yes
Off Street Parking: Yes
Trailer Storage: Yes

Security

Patrolled Area: Yes

Construction

CBS: Yes
Concrete: Yes

Land Size

Less Than 1/4 Acre: Yes

Furnished

Partially: Yes

Terms

Cash: Yes
Conventional: Yes
No Seller Finance: Yes
VA: Yes

Utilities

Buyer to Verify: Yes
Cable Available: Yes
Community Swr Plant: Yes
Elect Separate Meter: Yes
FKAA: Yes

Porch/Balcony

Deck: Yes
Open Porch/Balcony: Yes

Roof

Metal Roof: Yes

Shutters

Accordion: Yes

Property Features

Fee Includes: None Tax Exemptions: Homestead Waterfront: Canal Front Waterview: Canal View Vehicle Storage: Guest Parking; Off Street Parking; Open Parking; Trailer Storage Furnished: Partially Cooling: Ceiling Fans(s); Central Air Utilities: Buyer to Verify; Cable Available; Community Swr Plant; Elect Separate Meter; FKAA Interior Features: Drapes/Blinds Incl; Entrance Foyer; Quartz Countertops; Storage Appliances: Dishwasher; Disposal; Dryer; Microwave; Oven; Refrigerator; Stainless Steel Appliance(s); Washer Construction: CBS; Concrete Shutters: Accordion Floor: Laminate; Tile Roof: Metal Roof Pets: Pets Allowed Neighborhood Feature: Bike Paths; Community Boat Ramp; Tennis Courts Security: Patrolled Area Land Size: Less Than 1/4 Acre Terms: Cash; Conventional; No Seller Finance; VA

Listing Office: Ocean Sotheby's International

Last Updated: October - 08 - 2026

The data relating to real estate for sale on this web site comes in part from the Florida Keys MLS, Inc. Information provided is deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commeral use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. IDX data is deemed reliable but is not guaranteed accurate by the MLS.

Search powered by FBS Products