Its grid layout follows the standards of the typical Bastides grid. The basicarchitectural element is the central square boarded by arcades and stone and half-timbered houses. This square was the market place and the center of the communities’ economy. The market hall in the central square was built with stone and with wooden pillars. Now it hosts the Town Hall, which has a beautiful steeple with clock. This Town Hall was better known as “maison commune”. Apart from that central square, Saint-Clar has one more arcaded square, both just a few steps away from each other. This is located in the south, in the original village, in the “castet bielh”.