Inside the Plaza de Armas (Arms Square) there was a camp with campaign tents for the military garrison, with a large aljibe (cistern) built for it with two naves, in a south west angle ensuring the water supply.
The old military camp became a stable with small brick homes, some with multiple stories and organised around the main street; silos and wells were also opened.
The casa principal (main house) is located between the homes. It belonged to Muhammad I and afterwards, to the military commander.
It is much larger than the rest, with an entranceway, lavatory, courtyard with pool, and side bedrooms with built-in beds. There was also a small private bathroom. There was a street behind it, backing on to the wall, in order to be able to flee in case of emergency to the Torre del Homenaje (Tribute Tower).