Berry Street will be closed to traffic between 7 and 25 September for parts of the carriageway to be made level with the pavements at the rear of the theatre.
This will provide easier loading access for acts performing at the theatre as well as helping to reduce traffic speeds and improve traffic flow.
The council has also seized the opportunity to minimise disruption and coincide the highways improvements with National Grid works in the same street during that period.
It is an example of the scheme's overall aim to help attract more visitors and boost investment in Wolverhampton city centre.
Tim Johnson, Strategic Director, said: "The city centre improvements play an important part in the wider multi million pound regeneration of Wolverhampton.
"We want to ensure that this city continues to be an attractive place to live, visit and work. Enhancing the city centre means we can attract more investment, retain the businesses we have and create more jobs.
"This scheme is helping to improve pedestrian access between the city centre and the Interchange area and also reduce the number of vehicles in our main shopping areas.
"While work is carried out we will need to put temporary road closures in place and would like to thank people and businesses for bearing with us during this time.
"We have notified businesses to explain the current works in detail and reiterate that improvements will support the city centre's vibrancy in the future."
During the works access to Princess Alley, Princess Street, Wheeler's Fold and the western end of Berry Street will be via Market Street and Princess Street.
The Princess Street pedestrian zone between Queen Street and King Street will be suspended temporarily and the western end of Berry Street will be opened to two way traffic.
The bus only zone in Victoria Square will also be suspended (northbound only) to allow traffic approaching along Pipers Row to pass through to Lichfield Street, as it will not be able to exit along Berry Street.
- released: Tuesday 1 September, 2015