Located in the district of Austrias , it is one of the oldest houses still standing in Madrid, and there resided during several centuries the family of lujanes. It was built during the XV century. t has an irregular floor plan and a large central patio. The main feature is the tower, which is also one of the most outstanding elements in the square. Tradition has it that in the 16th Century this site was used as a provisional prison under French Monarch Francisco I.
The family of Alvaro de Lujan commissioned the complex surrounding the original house in 1494. The present day name for the group of structures takes itsname from this family. The properties remained within the family for some 200 years. The buildings were constructed in the Mudéjar style, which is a strongly Muslim-influenced style of architecture that came into being around the 12th century inSpain.