Abstract: An apparatus for building green tires includes a carcass band forming drum for forming a carcass band, a first forming drum arranged rearward of and coaxially to the carcass band forming drum for forming green cases, a first transfer unit movable between the carcass band and first forming drums for transferring and pressing beads to the carcass band and for transferring the united beads and the carcass band to the first forming drum and folding axial edges of the carcass band about the beads upon itself in cooperation with the first forming drum, a second forming drum arranged rearward of the first forming drum for toroidally deforming the green case, second transfer unit movable between the first and second forming drums for transferring and delivering the green case from the first forming drum and second forming drum, a band forming drum arranged rearward of the first forming drum for forming a band, and a third transfer unit movable between the band forming drum and the second forming drum for transferring