$19,750,000
15760 Old State Road 4aSummerland Key, FL 33042
5.3-Acre Rare Oceanfront Estate Compound on Sugarloaf Beach
- 6 bd
- 6 ba
- 4,402 sqft
- $4,487 /sqft
About this home
Designed for ultimate maritime living, the grounds center around a newly constructed 430-foot deep-water dock equipped with stainless steel pilings and a 5-foot draft capable of accommodating large yachts or charter pick-ups. Direct open-ocean access leads directly to world-class fishing and diving, with American Shoal Lighthouse located just 5 miles offshore. With Sub-Urban Residential zoning and extensive acreage, the estate presents endless possibilities—whether maintained as a generating luxury rental compound, reimagined as a grand private family sanctuary, or further developed into a flagship coastal retreat.
Facts & features
- Property Type
- Single Family
- Beds
- 6
- Baths
- 6
- Half Baths
- 1
- Living Area
- 4,402 sqft
- Lot Size
- 5.33 acres
- Year Built
- 1976
Listed by Lisa Swanson · The Agency Florida Keys
Last updated Aug 11, 2026 · Listing information is deemed reliable but is not guaranteed.






