Footrest (10) intended to be installed between a part (12) of a bulkhead and a floor (14) of a motor vehicle. The foot rest comprises a bearing wall (16) intended to support the foot or feet of a passenger of the motor vehicle and a sound insulation mat extending opposite at least part of the bearing wall and attached to the floor (14) of the motor vehicle, said mat comprising an insulating layer (19) disposed between the floor (14) and a covering layer (20) attached to said insulating layer (19), the bearing wall (16) further comprising at least one storage compartment (28), the bearing wall (16) comprising an internal face (26) intended to be positioned facing an exterior face (202) of the covering layer (20) at the time of installation of the foot rest (10), the storage compartment (28) extending between said internal face (26) of the bearing face (16) and the exterior face (202) of the covering layer (20), in which the storage compartment (28) has a bottom wall (30) fixed permanently to the internal face (26) of the bearing wall (16) by first (161 to 164), (301 to 304) and second (171 to 174), (181 to 184) connecting members and comprising housings (32, 44, 52, 62) the content of which is directly accessible without removing the storage compartment (28).