Snapshots of gas (solid lines) and dust (dashed lines) surface densities of the reference case. In the evolution phase, the inner disc is drained of gas as it is accreted by the star and the outer disc expands as gas is transported outwards to conserve angular momentum. In the first ≈1.0 Myr the dust surface density mimics that of the gas in most of the disc out to radii of about 100 au. Beyond this radius, radial drift of dust is already rapid, draining the dust disc. When the disc is between 2 and 2.5 Myr old, the dust disc is completely drained.