A new wave of agricultural commercialisation is being promoted across Africa’s eastern seaboard, by a broad range of influential actors – from international corporations to domestic political and business elites. Growth corridors, linking infrastructure development, mining and agriculture for export, are central to this, and are generating a new spatial politics as formerly remote borders and hinterlands are expected to be transformed through foreign investment and aid projects. In our APRA study, we have been asking: what actually happens on the ground, even when corridors as originally planned are slow to materialise? Do the grand visions play out as expected? Who is involved and who loses out? To answer these questions, APRA research into growth corridors has focused on three key examples: the Southern Agricultural Growth Corridor of Tanzania (SAGCOT), the Lamu Port and South Sudan Ethiopia Transport (LAPSSET) corridor, and the Beira and Nacala corridors in Mozambique.