The Grand Mosque of Chefchaouen is the town’s oldest Islamic worship place and the principal mosque for Friday namaz congregations. Located at the central Plaza Uta el-Hammam, the clay red and brown shades of the Grand Mosque set it apart from the usual blue and white of Chefchaouen. The interiors are closed to non-Muslim visitors, but they can admire the structure's facade from the outside.
Sprawled over 130 square metres, the mosque follows Andalusian and Arabic architecture styles with a large courtyard, a prayer hall, a tower or minaret, a madrasa school, and ablutions or cleansing chambers. The octagonal minaret that towers over the city’s medina makes the mosque stand out.