About This Home

This 3-bedroom, 3-bathroom multi-family at 391 10th Street in Key Colony, FL is listed for $1,185,000 ($547 per sqft). Built in 1988, the home offers 2,166 sqft of living space on a 0.10 acres lot.

Key Features

  • Built in 1988
  • 0.10 acre lot
  • Waterfront

Property Details

3 full
1988

Amenities

WaterfrontA/C
Listing 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. 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!

Monthly Cost Estimate

$6,338/mo

20% down · 6.5% · 30 years

Principal$857
Interest$5,135
Insurance$346

Estimates only. Actual payments may vary.

Location

391 10th Street

Key Colony, FL 33051

Key Colony Bch 1st Addn Amd Plat (53.5)

Features & Amenities

Interior Features

Entrance FoyerStorageQuartz Countertops

Property Details

Flooring

LaminateTile

Construction

CBS Concrete

Outdoor Features

PorchDeck

Parking

Open

Cooling

Central Air

Appliances

WasherDryerDishwasherRefrigeratorOvenMicrowaveDisposalStainless Steel Appliance(s)

Questions & Answers

This 3-bedroom, 3-bathroom multi-family at 391 10th Street is listed at $1,185,000 ($547/sqft). The estimated monthly payment is $6,338 based on 20% down, a 30-year loan at 6.5% interest, estimated insurance.

Key features include: Built in 1988, 0.10 acre lot, Waterfront. Interior Features: Entrance Foyer, Storage, Quartz Countertops.

This property is listed by Jo Ann Cook.

JC

Jo Ann Cook

License 3330898

Agent at Ocean Sotheby's International Realty

Listed by Ocean Sotheby's International Realty · Broker phone: (305) 735-4095 · View on Broker Site · Broker website

MLS# 621529· Source: Marathon and Lower Keys Association of Realtors· 25 days on PropertySimple

Copyright © 2026 Marathon and Lower Keys Association of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

391 10th Street, Key Colony, FL 33051

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