A structure for the rear part of a vehicle body includes: left and right rear pillars (13) extending upward and forward from the rear lower ends of left and right rear side frames (12); left and rightrear wheel wells (14) provided between the left and right rear side frames and the left and right rear pillars; and left and right damper bases (50) provided in the upper parts of the interiors of the left and right rear wheel wells. The top plates (37) of the left and right rear wheel wells are located below the left and right rear pillars. The left and right spaces (Sp) between the left and right top plates and the left and right rear pillars are closed by left and right gussets (40). The left and right rear pillars, the upper parts of the left and right rear wheel wells, and the left and right gussets are combined to have a closed cross-section in a side view. The left and right damper bases are surrounded by the left and right gussets with the left and right rear wheel wells therebetween.