Isla Centinela is located in the middle of the El Burguillo reservoir in the province of Ávila. The property, spanning approximately 10,800 square meters, features a renovated castle with seven luxury suites, panoramic terraces, and a large banquet hall.
Spain Expat Press Editorial Team
by Marlon Gallego Bosbach
A private island featuring a castle, mountain views, and a largely independent energy supply: an extraordinary property in the Spanish province of Ávila is on the market for 3.25 million euros. Located in the middle of the El Burguillo reservoir, Isla Centinela combines historic architecture with modern amenities. The estate is being marketed by the real estate agency CENTURY 21 Homeplace.
Castle with history and modern amenities
The castle was built in 1923 on the remains of an older watchtower and was later extensively renovated. The building has a floor area of around 1,000 square meters, distributed across four floors connected by an elevator.
Amenities include seven suites, each with a private bathroom and fireplace. Some rooms also feature a Jacuzzi. Large windows and spacious terraces offer views of the reservoir and the surrounding mountain landscape.
In addition to the living and sleeping areas, the property includes, among other things, a kitchen, a spacious living and dining area, a garage, a storage room, and a utility room. Air conditioning and heating are also provided.
The ballroom can be converted into additional bedrooms
A distinctive feature of the property is the large ballroom with a professional bar. According to the sales description, this area can be converted into four additional bedrooms, each with its own bathroom. This would allow the total number of bedrooms to increase from the current seven to eleven.
The layout offers various possibilities for use. In addition to serving as a private residence, the property could also function as a prestigious venue for events or as an exclusive retreat. However, whether commercial use is permissible – and under what conditions – depends on the applicable permits.
Independent energy supply and unusual access route
Isla Centinela possesses a largely self-contained technical infrastructure. Its facilities include solar panels, two emergency generators, and its own water treatment and filtration system.
Access to the island is also unusual. Typically, it can only be reached by boat. However, if the water level of the reservoir drops sufficiently during certain months, a connection to the mainland may emerge, allowing vehicles to reach the island as well.
Its location in the middle of the El Burguillo reservoir ensures a high degree of seclusion. At the same time, the property is situated in a landscape defined by the Sierra de Gredos mountains and the Alberche River.
Private island for 3.25 million euros
The island covers a total area of 10,847 square meters. The asking price for the estate is 3.25 million euros. The property is thus aimed primarily at buyers seeking an exceptional residence offering a high degree of privacy and historic architecture.
Isla Centinela differs significantly from classic luxury properties on the Spanish market: instead of a seaside home or a villa in an exclusive residential complex, it offers a castle on an island that is accessible only by water for much of the year.
