The area where Milano Santa Giulia is being built is a 296 acres (1.20 km2) wide former industrial zone, where Montedison and Acciaierie Redaelli facilities used to be.

[1] According to the initial plan, the district will have two main areas, respectively where Montedison and Redaelli facilities used to be; they will be divided by a large city park, traversed by the Paullese, a major thoroughfare connecting Milan to Paullo.

The development of a tramway from the railway station across the whole district, connecting to the existing tracks in the neighbourhood of Morsenchio, is also part of the plan.

In 2010, the authorities have confiscated the area on the basis that the groundwater is polluted, an issue that is still being debated, with the Milan Metro trustees upholding that the drinking water aquifers are safe.

[3][4] In the ex-Redaelli area, bordering on the Rogoredo district, residential and office buildings have been constructed, including the headquarters of the Sky Italia satellite television provider.