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$4,500,000
Monthly Est:$22,398
4 Beds
- 3 Baths
3 full baths
2,620sqft
422 Harbour Dr, Marathon, FL 33050
$4,500,000
$22,398/moEst:
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Single Family Residence
Built in 1985
$-- HOA
12,197 sqft lot
$1,718/sq.ft
Description
There are places where the water is part of the view. And then there's Duck Key, where it shapes the entire way of life. Set in the heart of the Florida Keys, this two-story waterfront residence brings together thoughtful living spaces, beautiful open-water scenery, and everything that makes island life so distinctive. The home offers four bedrooms and three bathrooms, surrounded by lush landscaping and designed to make the most of its waterfront setting. Outside, the property really comes into its own. A private pool, beach area, and dock put the water at the center of every day. And for boaters, the details matter: A 30,000-pound boat lift, a jet ski lift, a fish cleaning station, and steps leading right into the water. A morning offshore, an afternoon exploring the keys, or a quiet evening back at the pool. Here, those aren't special occasions. They're simply options. Upstairs, the open living kitchen areas are made for gathering, but the water remains the focal point with sliding glass doors that open to an expansive balcony that wraps around the upper level. The upper floor also includes the master bedroom with an ensuite bath, second bedroom and full bath in the hallway. Downstairs, a second living area, kitchenette, two additional bedrooms, and another full bathroom create a flexible layout for family and guests. From the lower level, step outside to the balcony, pool, beach and dock. Beyond the property, Duck Key has its own distinctive appeal. Join the optional Duck Key clubhouse for a pool, tennis, pickleball, and events, or Hawks Cay Resort for its Michelin-rated Salt and Ash restaurant, saltwater lagoon, Dolphin Connection, and pools.
- Houzeo last checked: 5 minutes ago
- Listing updated: October 29, 2026 at 4:49 pm
- Listing Provided by: Linda Ivey (386) 679-5715 | THE HIGH TIDE GROUP (386) 682-0992
- Source: Stellar MLS-FL as distributed by MLS GRID | MLS#: NS1089477

Property Details
Status
Active
Type
Single Family Residence
No. of Stories
3
County
City
Neighborhood
--
Year Built
1985
HOA Fees
-
Finished Area
2,620 sqft
Lot Size
12,197 sqft lot
Basement Area
- sqft
MLS Name
Stellar MLS
MLS Number
NS1089477
MLS Status
Active
Days on Market
20
Cumulative Days on Market
15

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Location
Facts & Features
Rooms
Bedrooms & bathrooms
Bedrooms: 4
Bathrooms: 3
Interior
Cooling
Central Air
Window Features
Shades, Window Treatments
Exterior Features
Balcony, Lighting, Outdoor Grill, Private Mailbox, Rain Gutters, Storage
Interior Features
Beamed Ceilings, Cathedral Ceiling(s), Ceiling Fans(s), High Ceilings, Open Floorplan, Primary Bedroom Upstairs, Solid Wood Cabinets, Thermostat, Window Treatments
Sewer
Public Sewer
Heating
Central, Electric
Flooring
Ceramic Tile, Travertine
Appliances
Built In Oven, Cooktop, Dishwasher, Disposal, Electric Cooktop, Electric Water Heater, Freezer, Microwave, Range, Refrigerator, Washer, Wine Refrigerator
Construction
Year Built
Year Built: 1985
Home type
Single Family Residence
Foundation Details
Other
Construction Materials
Block
Roof
Metal
Utilities & Energy
Security Features
Security Lights, Smoke Detector(s)
Water Source
Public
Pool Features
In Ground, Gunite
Laundry Features
Inside
Utilities
Bb/hs Internet Available, Cable Connected, Electricity Connected, Public, Sewer Connected, Underground Utilities, Water Connected
Other Features
Subdivision Name
Harbour Island Amd
Price History
| Date | Event | Price |
|---|---|---|
10/14/2026 Source: | Listed for Sale | $4,500,000 $1,718/sqft |
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Based on information from Stellar MLS® through Nov 04, 2026, 04:00AM as submitted to and distributed by MLS GRID. All data is obtained from various sources and may not have been verified by the broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. IDX information is provided exclusively for consumers’ personal non-commercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID. The use of the MLS GRID Data may be subject to an end-user license agreement prescribed by the Member Participant’s applicable MLS, if any, and as amended from time to time. © 2026 Stellar MLS. All Rights Reserved.
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