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  • 781 9Th Street, Key Colony, FL 33051 (MLS# 618752)

781 9Th Street, Key Colony, FL 33051

$3,250,000
Property Type: Residential Bedrooms: 3 Baths: 3 Square Footage: 2,600 Lot Size (sq. ft.): 15,891 Status: Active
Current Price: $3,250,000 List Date: 2/21/2026 Last Modified: 2/21/2026

Description

The Ultimate Keys Compound: A Shelter Bay Masterpiece Welcome to your dream home in Key Colony Beach. Perched on a premier 0.39-acre point lot, 781 9th Street offers an unparalleled 276 feet of deep-water frontage, making it a crown jewel for serious offshore anglers and sunset seekers alike. Step inside to an airy, open-concept sanctuary where the line between indoors and outdoors disappears. Take the elevator to the gourmet kitchen which serves as the heart of the home, featuring premium appliances, island, and abundant cabinetry space, perfect for hosting après-sea gatherings. The master suite is a private retreat with direct access to the wraparound balcony with amazing westward views and a spa-like ensuite bathroom featuring a jetted tub and a separate walk-in shower. The exterior is designed for the ''Keys Life'' at its most vibrant. Whether you're launching a world-class fishing expedition from your 55-foot cut-in slip or enjoying a ''staycation'' by the resort-style pool, the amenities are endless. Kids and adults alike will love the 9-foot deep pool with its own waterslide and splash pad. As the sun sets over Shelter Bay, move to the outdoor kitchen and bar to grill your fresh catch while catching the game on the outdoor TV and enjoying a beautiful Keys Sunset within view to the west. Located in the prestigious Key Colony Beach community, you are just a short boat ride (5 miles) from the iconic Sombrero Light and world-class diving. Enjoy the amenities of KCB, a marina, parks, shops, restaurants, tennis courts, and nearby golf, all while maintaining the seclusion of a private gated, point-lot estate. Large vessels are no problem here with a deep water 55x24 protected slip, and additional boat lift and all the seawall you could want for multiple water toys! Draft is no problem for larger vessels.

More Information MLS# 618752

Contract Information

Listing Board: Marathon/Lower Keys As is Rght to Inspct: Yes Species List: No Current Price: $3,250,000 Listing Date: 2026-02-20 List Price: $3,250,000

Location, Tax & Legal

City: KEY COLONY Off Shore Island: No Mile Marker: 53.5 Marathon Neighborhood: Marathon East - Gulf (Airport to Vaca) Side: Ocean Flood Zone: AE Alternate Key #: 1081396 Handicap Access: Yes Parcel #: 00075800-000000 Zoning: R-1A - Key Colony Single Family Deed Restrictions: Unknown Legal: BK 10 LT 35 KEY COLONY BEACH FIRST ADDN AMD PLAT PB4-11 SHELTER KEY Taxes: 24065.48 Tax Year: 2025 Pub Sewer HkUp: Yes Street #: 781 Street Name: 9Th 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

General Property Description

Realtor.COM Type: Residential - Single Family Waterfront: Yes Control Depth: 10 Lot Size: X Lot SqFt: 15891 Pool: Yes Lot Sqft Source: Property Data Card Total Units: 0 Acres: 0.39 SqFt Source: Property Data Card Rentals Allowed: With Restrictions Min Rental Days: 7 Style: Single Family Year Built: 1977 Living Apx SqFt: 2600 Total Bedrooms: 3 Full Baths: 3 Total Baths: 3

Remarks & Misc

Remarks – Consumer: The Ultimate Keys Compound: A Shelter Bay Masterpiece Welcome to your dream home in Key Colony Beach. Perched on a premier 0.39-acre point lot, 781 9th Street offers an unparalleled 276 feet of deep-water frontage, making it a crown jewel for serious offshore anglers and sunset seekers alike. Step inside to an airy, open-concept sanctuary where the line between indoors and outdoors disappears. Take the elevator to the gourmet kitchen which serves as the heart of the home, featuring premium appliances, island, and abundant cabinetry space, perfect for hosting après-sea gatherings. The master suite is a private retreat with direct access to the wraparound balcony with amazing westward views and a spa-like ensuite bathroom featuring a jetted tub and a separate walk-in shower. The exterior is designed for the ''Keys Life'' at its most vibrant. Whether you're launching a world-class fishing expedition from your 55-foot cut-in slip or enjoying a ''staycation'' by the resort-style pool, the amenities are endless. Kids and adults alike will love the 9-foot deep pool with its own waterslide and splash pad. As the sun sets over Shelter Bay, move to the outdoor kitchen and bar to grill your fresh catch while catching the game on the outdoor TV and enjoying a beautiful Keys Sunset within view to the west. Located in the prestigious Key Colony Beach community, you are just a short boat ride (5 miles) from the iconic Sombrero Light and world-class diving. Enjoy the amenities of KCB, a marina, parks, shops, restaurants, tennis courts, and nearby golf, all while maintaining the seclusion of a private gated, point-lot estate. Large vessels are no problem here with a deep water 55x24 protected slip, and additional boat lift and all the seawall you could want for multiple water toys! Draft is no problem for larger vessels. Directions: US1 to Sadowski Causeway. Right turn on W Ocean drive, right turn on 9th street. Home at the end of the street. Gated.

Association Info

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

Fee Includes

None: 1

Dockage

Dock Length: 276 Basin: 1 Boat Lift: 1 Seawall: Concrete Other Dockage: 1

Tax Exemptions

None: 1

Appliances

Dishwasher: 1 Dryer: 1 Microwave: 1 Oven: 1 Refrigerator: 1 Washer: 1

Pets

Pets Allowed: 1

Cooling

Ceiling Fans(s): 1 Central Air: 1

Heating

Central: 1

Waterfront

Canal Front: 1 Open Water: 1

Waterview

Canal View: 1 Open Water View: 1

Interior Features

Built-in Cabinets: 1 Elevator: 1 Pantry: 1 Quartz Countertops: 1 Storage: 1 Whirlpool Bath Tub: 1 Window Treatments: 1

Property Condition

Updated/Remodeled: 1

Specialty Rooms

Laundry Room: 1 Sauna/Steam Room: 1 Utility Room: 1 Workshop: 1

Building Style

Above Flood: Yes Stories: 2 Stories

Vehicle Storage

Garage: 1 Attached: 1 Off Street Parking: 1

Construction

CBS: 1

Land Size

1/4 - 1/2 Acre: 1

Furnished

Negotiable: 1

Terms

Cash: 1 Conventional: 1 Seller Finance Psble: 1

Utilities

Community Swr Plant: 1 Municipal Sewer: 1

Porch/Balcony

Open Porch/Balcony: 1

Pool Info

In Ground: 1

Pre-Wired

Cable: 1

Status Change Info

Status: Active

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: Canal Front; Open Water Waterview: Canal View; Open Water View Dockage: Basin; Boat Lift; Other Dockage Property Condition: Updated/Remodeled Vehicle Storage: Garage; Attached; Off Street Parking Furnished: Negotiable Cooling: Ceiling Fans(s); Central Air Heating: Central Utilities: Community Swr Plant; Municipal Sewer Interior Features: Built-in Cabinets; Elevator; Pantry; Quartz Countertops; Storage; Whirlpool Bath Tub; Window Treatments Pre-Wired: Cable Specialty Rooms: Laundry Room; Sauna/Steam Room; Utility Room; Workshop Appliances: Dishwasher; Dryer; Microwave; Oven; Refrigerator; Washer Pool Info: In Ground Construction: CBS Pets: Pets Allowed Land Size: 1/4 - 1/2 Acre Terms: Cash; Conventional; Seller Finance Psble
Listing Office: Engel & Völkers Marathon
Last Updated: February - 21 - 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.

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