350 Buttonwood Bight Lane, Plantation Key, FL 33070
New Listing
$14,000,000
Property Type:
Residential
Bedrooms:
5
Baths:
4
Square Footage:
3,582
Lot Size (sq. ft.):
56,448
Status:
Active
Current Price:
$14,000,000
List Date:
8/25/2026
Last Modified:
8/26/2026
Description
The most sought-after bay in all the Florida Keys, and one of the largest properties on it. This true double lot spans 1.3 acres with more than 250' of bayfront facing due west for the perfect nightly sunset. A white sand beach transitions into the clear bay waters, while a protected basin offers a 20,000 lb. lift accommodating up to a 40' boat and a 3,000 lb. skiff lift. Ultra-private, with no neighbors in sight and expansive green lawns throughout.
The home is sophisticated yet inviting, with an incredible attention to detail throughout and a distinctive blend of Tuscan Mediterranean architecture and classic Keys styling. Enter through the gates into a private courtyard and open-air atrium with freshwater ponds and fountains. An elevator provides access to the second floor, where a one-of-a-kind living room overlooks the bay with exposed wood beams and tongue-and-groove ceilings. Updated throughout while preserving its original ornate finishes, this level flows from the living and dining rooms into the kitchen with a gas range and dumbwaiter. The bayfront primary suite features an impressive bath with dual vanity areas. Two additional bedrooms share a Jack-and-Jill bath, plus a half bath finishes off the second floor.
Halfway down the main staircase is the entrance to one of the favorite rooms in the home: the library. With vaulted ceilings and a fireplace, it is the ultimate setting to work, relax with a good book, or serve as a fifth bedroom. The ground floor offers a separate ensuite guest bedroom, garage with front and rear doors, laundry room with double washers and dryers, and an outdoor kitchen.
Outside, a massive 40' x 22' pool features a hot tub and beach-entry shelf. Extensive uplighting and downlighting illuminate the property at night. An additional front lot includes a detached structure currently used as a gym and storage.
A once-in-a-lifetime opportunity to own one of Islamorada's most prized bayfront estates.
Open Houses
Thursday, August 27, 10:00 am - 1:00 pm
More Information MLS# 621096
Contract Information
Current Price: $14,000,000
Listing Date: 2026-08-25
Listing Board: Florida Keys
List Price: $14,000,000
Location Tax Legal
Street #: 350
Street Name: Buttonwood Bight
Street Suffix: Lane
Key/Island: Plantation Key
State/Province: FL
Zip Code: 33070
County: Monroe
Subdivision: Lysiloma (89.5)
Area: 25 - Plantation Key
General Property Description
Realtor.COM Type: Residential - Single Family
Style: Single Family
Waterfront: Yes
Control Depth: 4
Pool: Yes
Year Built: 1987
Lot SqFt: 56448
Acres: 1.3
Living Apx SqFt: 3582
SqFt Source: Tax Records
Total Bedrooms: 5
Full Baths: 3
Half Baths: 1
Total Baths: 4
Rentals Allowed: With Restrictions
Status Change Info
Status: Active
Association Info
Mandatory Home Owners Asc: No
1st Right of Refusal: No
Dockage
Dock: Wood
Building Style
Above Flood: Unknown
Stories: 2 Stories
Pool Info
Heated: Yes
Property Features
Fee Includes: None
Tax Exemptions: None
Waterfront: Bay Front
Waterview: Bay/Gulf View
Dockage: Basin; Boat Lift; Boat Ramp
Vehicle Storage: Garage; Off Street Parking
Furnished: Negotiable
Cooling: Central Air
Utilities: FKAA; Municipal Sewer
Interior Features: Cathedral Ceilings; Elevator; Security System; Walk-in Closet(s); Wet Bar; Window Treatments
Specialty Rooms: Gym; Laundry Room
Appliances: Dishwasher; Disposal; Dryer; Freezer; Gas Appliances; Ice Machine; Microwave; Oven; Range; Refrigerator; Stainless Steel Appliance(s); Washer; Wine Cooler
Exterior Features: Built-in Grill; Chickee Hut; Fencing; Hot Tub; Lighting; Outdoor Kitchen; Outdoor Shower; Sandy Beach
Pool Info: In Ground; Salt Water; Concrete
Construction: CBS
Floor: Carpet; Tile
Roof: Tile Roof
Pets: Pets Allowed
Land Size: 1 Less Than 2 Acres
Listing Office: Palm House Real Estate
Last Updated: August - 26 - 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.