About 69401 Overseas Highway
An unparalleled development opportunity in the heart of the Florida Keys. Spanning approximately 10 acres, this expansive bayfront property represents one of the largest and most versatile land offerings currently available in the Middle Keys.69401 Overseas Highway consists of two new construction homes (4 bedrooms/4.5 bathrooms each), 8 additional building rights (7 waterfront lots, 1 dry lot), 16 deep water boat slips in a protected basin (6 with boat lifts), and a total of 10 acres of land conveyed with the sale. The property offers exceptional flexibility for a luxury compound, secluded waterfront community, or private family retreat. The 2 current homes on property sit on 5200SQFT each, featuring 4 bedrooms/4.5 bathrooms, with a total interior square footage of 3300SQFT. Each has their own private pool & spa, unobstructed bay views, garage, Thermador appliances & marble kitchen countertops, impact doors and windows & designed to embrace the island lifestyle. The estate balances seclusion with convenience--just minutes from Marathon Executive Airport for effortless fly-in, fly-out access. As well as seamless access to both the bay & ocean side waters via Long Key Bridge or Channel 5. The setting is defined by endless sunsets, abundant wildlife, and world-class boating & fishing just steps from your door.Whether envisioned as a multigenerational retreat, a private waterfront sanctuary, or a visionary redevelopment, this legacy property offers the space, flexibility, and natural beauty to bring a dream to life.
Features of 69401 Overseas Highway
| MLS® # | 618724 |
|---|---|
| Price | $36,500,000 |
| Bedrooms | 8 |
| Bathrooms | 10.00 |
| Full Baths | 8 |
| Half Baths | 2 |
| Square Footage | 6,600 |
| Acres | 10.03 |
| Year Built | 2021 |
| Type | Residential |
| Sub-Type | Multi-Units |
| Status | Active |
Community Information
| Address | 69401 Overseas Highway |
|---|---|
| Area | 21 - Long Key |
| Subdivision | Misc Long Key Condo (70.0) |
| City | Long Key |
| County | Monroe |
| State | FL |
| Zip Code | 33001 |
Amenities
| Amenities | Community Dockage, Beach |
|---|---|
| Utilities | FKAA, Propane, Cable Available, Water Separate Meter, Buyer to Verify |
| Parking | Garage, Trailer Storage, Covered Parking, Off Street Parking, Auto Door Opener |
| View | Bay/Gulf View, Open Water View |
| Is Waterfront | Yes |
| Waterfront | Bay Front, Open Water |
| Has Pool | Yes |
| Pool | Salt Water, Concrete |
Interior
| Interior Features | Wet Bar, Built-in Cabinets, Bar, Window Treatments, Storage, Security System |
|---|---|
| Appliances | Washer, Stainless Steel Appliance(s), Wine Cooler, Gas Appliances, Freezer, Microwave, Oven, Range, Refrigerator, Dishwasher, Dryer |
| Cooling | Central Air, Ceiling Fans(s) |
| Fireplace | No |
Exterior
| Exterior Features | Hot Tub, Storage, Sprinkler System, Sandy Beach, Privacy Wall/Fence |
|---|---|
| Lot Description | 10 or more Acres |
| Windows | French Doors, Impact Rstnce Window, Impact Rstnce Doors |
| Roof | Metal Roof |
| Construction | CBS |
Additional Information
| Date Listed | February 19th, 2026 |
|---|---|
| Days on Market | 50 |
| Zoning | SR - Sub Urban Residential District |
| Short Sale | No |
| RE / Bank Owned | No |
| HOA Fees | 0.00 |
Listing Details
| Agent | Courtney Conley |
|---|---|
| Office | Serhant Florida LLC - Miami Office |