The invention relates to a building including a facing, a backfill at the back of the facing, synthetic reinforcement strips distributed in the backfill, and a connection system between the reinforcement strips and the backfill. The connection system includes fasteners having the shape of a continuous closed loop, each including two first portions for hooking to the facing and, alternating with the first portions along the closed loop shape, two second portions extending towards the back of the facing where they are folded back to form two loops inside of which at least one reinforcement strip extends.