Discover one of the Florida Keys' most extraordinary private island retreats. Encompassing 9.69 acres of pristine tropical landscape, Howell Key offers an unparalleled opportunity to own an off-grid luxury island with two building rights, allowing for one additional residence, surrounded by breathtaking open water views from sunrise to sunset. Designed for those who value privacy, adventure, and refined coastal living, the island features groomed trails, resort-style pool, sandy beach, pickleball court, chicken coop, pasture, and expansive barn. At the heart of the island sits a beautifully crafted 5-bedroom, 4-bath residence encompassing 3,352 sq. ft. Cathedral ceilings, elegant coastal interiors, and expansive gathering spaces create a warm yet sophisticated atmosphere, while walls of impact-rated glass invite natural light and panoramic water views. The layout comfortably accommodates family and guests with an attached primary suite featuring a generous walk-in closet. A separate guest wing, accessed via a breezeway, includes its own living room, breakfast bar, and two private bedrooms. Wander the groomed trails, relax by the saltwater pool, launch kayaks from the sandy beach, enjoy pickleball, or watch the sunset from your dock. Built for resilience and efficiency, the home features SIP construction, Hardie Board siding, a standing seam metal roof, impact windows and doors, whole-house reverse osmosis water filtration, and an off-grid solar power system. Elevated approximately 10 feet above base flood elevation, the property offers sustainability and peace of mind. The purchase includes a barge, golf cart, tractor, and a private mainland lot for car storage. Howell Key offers a private island lifestyle few will ever have the opportunity to experience.
For sale
$16,900,000
0 Howell Ky, Summerland Key, FL 33042
5beds
3,352sqft
Single Family Residence
Built in 2015
9.69 Acres Lot
$-- Zestimate®
$5,042/sqft
$-- HOA
What's special
Separate guest wingResort-style poolExpansive barnSaltwater poolPanoramic water viewsSandy beachElegant coastal interiors
- 68 days
- 4,390
- 256
Zillow last checked:
Listing updated:
Listed by:
Lisa H Ferringo 305-797-1221,
Coldwell Banker Schmitt Real Estate Co
Source: FLKMLS,MLS#: 620413
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 4
- Full bathrooms: 4
Cooling
- Ceiling Fans(s), Ductless
Appliances
- Included: Washer, Dryer, Dishwasher, Refrigerator, Range, Oven, Microwave, Gas Appliances, Solar Hot Water, Stainless Steel Appliance(s)
Features
- Built-in Features, Walk-in Closet(s), Bar
- Flooring: Tile
- Windows: Skylight(s)
Interior area
- Total structure area: 3,352
- Total interior livable area: 3,352 sqft
Video & virtual tour
Property
Parking
- Parking features: Garage
- Has garage: Yes
Features
- Patio & porch: Open Porch/Balcony, Deck, Patio, Screened Patio, Lanai
- Exterior features: Chickee Hut, Lighting, Outdoor Kitchen, Outdoor Shower, Sandy Beach, Storage, Tennis Court(s)
- Has private pool: Yes
- Pool features: Salt Water
- On waterfront: Yes
Lot
- Size: 9.69 Acres
Details
- Additional structures: Gazebo, Guest House, Shed(s)
- Parcel number: 00107630000000
- Zoning: OS - Offshore Island District
- Other equipment: Generator
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- SIP (Structural Insulated Panels)
Condition
- Updated/Remodeled
- New construction: No
- Year built: 2015
Community & HOA
Community
- Subdivision: Misc Summerland Key (25.0)
HOA
- Has HOA: No
- Services included: None
Location
- Region: Summerland Key
Financial & listing details
- Price per square foot: $5,042/sqft
- Annual tax amount: $27,394
- Date on market: 6/25/2026
- Listing terms: Cash,Conventional
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 6/25/2026 | Listed for sale | $16,900,000-22.8%$5,042/sqft |
Source: | ||
| 5/21/2025 | Listing removed | $21,900,000$6,533/sqft |
Source: | ||
| 7/12/2024 | Listed for sale | $21,900,000$6,533/sqft |
Source: | ||
Public tax history
Tax history is unavailable.
Monthly payment
Est. payment
