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

781 9Th Street, Key Colony, FL 33051

$3,250,000

Located in Shelter bay, 276 ft of useable frontage, 55ft cut in boat slip

Front of house, downstairs enclosure has garage and large storage area

150 ft of covered porch overlooking Shelter Bay

Large 9 ft deep pool with slide, splashpad, and water feature

Downstairs enclosure has garage and storage area enclosure

Plenty of room for bikes and SUP storage

Extra laundry, sink, ice machine, and bait freezer enclosure

Property Type: Residential Bedrooms: 3 Baths: 3 Square Footage: 2,600 Lot Size (sq. ft.): 15,891 Status: Closed

Current Price: $3,250,000 List Date: 2/21/2026 Last Modified: 4/09/2026

Overview

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 p ... (Read more)

Listing Details MLS# 618752

Location, Tax & Legal

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
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

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

Status Change Info

Sold Date: 2026-04-09

Association Info

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

Dockage

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

More Information

Building Style

Above Flood: Yes
Stories: 2 Stories

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.

Fee Includes

None: Yes

Tax Exemptions

None: Yes

Appliances

Dishwasher: Yes
Dryer: Yes
Microwave: Yes
Oven: Yes
Refrigerator: Yes
Washer: Yes

Pets

Pets Allowed: Yes

Cooling

Ceiling Fans(s): Yes
Central Air: Yes

Heating

Central: Yes

Waterfront

Canal Front: Yes
Open Water: Yes

Waterview

Canal View: Yes
Open Water View: Yes

Interior Features

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

Property Condition

Updated/Remodeled: Yes

Specialty Rooms

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

Vehicle Storage

Garage: Yes
Attached: Yes
Off Street Parking: Yes

Construction

CBS: Yes

Land Size

1/4 - 1/2 Acre: Yes

Furnished

Negotiable: Yes

Terms

Cash: Yes
Conventional: Yes
Seller Finance Psble: Yes

Utilities

Community Swr Plant: Yes
Municipal Sewer: Yes

Porch/Balcony

Open Porch/Balcony: Yes

Pool Info

In Ground: Yes

Pre-Wired

Cable: Yes

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: April - 09 - 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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