Isla Sentinel: A Private Island Now Available for Purchase
Located just an hour's drive from Madrid, the 10,000-square-meter private island of Isla Sentinel is currently on the market for €3.25 million (around £2.7 million). Nestled within the El Burguillo reservoir, this island features a remarkable four-story castle built in 1923. The castle boasts seven spacious suites, each equipped with its own fireplace.
The island’s castle includes several amenities such as:
- a professional bar
- an entertainment room
- a living room
- a kitchen
- a garage
- a storage room
Isla Sentinel is also self-sufficient, equipped with a water purification and filtration system, solar panels, and a backup generator. The property is being handled by Century 21 Homeplace, with Ignacio La Iglesia representing the sale. Interestingly, during certain times of the year, receding water levels connect the island to the mainland, allowing access by car.
Greek Island Stroggilo Also Up for Sale
In addition to Isla Sentinel, the Greek island of Stroggilo in the Dodecanese archipelago is on the market for €4.5 million (approximately £3.8 million). Covering 54 acres, Stroggilo has historically served as a shelter for sailors during storms. Its listing is available on Private Islands Inc. The island is situated near Patmos and Leros, with the popular tourist destination of Kos about 45 nautical miles away.
"Just an hour from Madrid, this island features a unique castle dating back to 1923. A former watchtower has been transformed into a four-story residential home."
The sale of private islands like Isla Sentinel and Stroggilo reflects a growing demand among investors and buyers for exclusive and secluded properties. This trend aligns with an increasing desire for privacy and luxury in today’s fast-paced world. Both islands present attractive alternatives for those seeking private retreats or distinctive investment opportunities beyond conventional resorts and hotels.