The aim of Perth City Link was to sink the railway lines and use the newly-released land, attracting more than $3 billion in private investment, 1,650 new apartments for 3,000 new residents and accommodate over 13,000 workers in 244,000sqm of new commercial and retail space, nightlife and renewed transport infrastructure.
The $360m rail project included sinking a 600-metre section of the Fremantle rail line to reconnect the CBD with Northbridge. It also included a new pedestrian underpass connecting Perth Underground Station to the platforms at Perth Station, and major upgrades to Perth Station.
Sinking part of the railway created 13.5 hectares of space.