Isla Centinela castle island for sale in Ávila

Isla Centinela, a private island featuring a castle, is currently on the market for 3.25 million euros. Located in the El Burguillo reservoir in the province of Ávila, approximately 80 kilometers from Madrid, the property covers more than 10,000 square meters.

The castle, built in 1923 on the site of an ancient watchtower, spans roughly 1,000 square meters across four floors connected by an elevator. The residence includes seven exterior suites with private bathrooms and fireplaces, plus a celebration pavilion that can serve as four additional bedrooms, totaling 11 bedrooms and 11 bathrooms.

The estate is designed for self-sufficiency, utilizing solar panels, backup generators, and independent water filtration and purification systems. Access to the island is primarily via a private pier by boat, though the island occasionally connects to the mainland by land when the reservoir's water levels drop significantly.