The Colonnades will be given a £3.3 million makeover in a bid to provide modern and attractive offices and enhance the existing retail space.
The other scheme will involve £1.22 million being spent on the further development of a cinema and restaurant complex in Waterdale’s cultural and civic quarter.
The two schemes are both set to be funded by the Sheffield City Region Investment Fund (SCRIF).
It is hoped the two developments will help to increase footfall and encourage new businesses to set up shop in the town centre.
Deputy Mayor of Doncaster Coun Glyn Jones said: “Jobs and growth are a top priority, particularly in our town centre, and these two schemes will certainly deliver on that front.
“With its superb location, Colonnades has tremendous potential to become a modern business and public sector hub while the infrastructure improvements in the civic and cultural quarter will help deliver new developments, including another complementary leisure attraction in the shape of a new cinema complex.
“Both schemes bring additional investment in our town centre which encourages more people to visit and work here and this has to be great news for our economy.”
Coun Jones continued: “These two schemes will contribute to the Doncaster Story which has just been launched to celebrate all that is great about our wonderful town and showcases this to investors, developers and companies looking to expand or relocate.
“We have grand plans for Doncaster and through our coordinated approach we are delivering major projects across the borough which are already making a huge difference and will continue to do so.”