The new facility on a 10-acre site on Cathcart Road will be the biggest bus depot in the UK with space for up to 450 buses and more than 1,200 employees.
The development will consist of three separate buildings. Balfour Beatty will be responsible for constructing a bus maintenance facility, a dedicated service tunnel, with a deep clean facility and a specialist long-term vehicle repair unit. The service tunnel will be fitted with an automated chassis clean unit, two high-specification automated vehicle washes, fuel installation and facilities for vehicle testing and body shop repairs.
Rainwater harvesting is expected to capture 2.2 million litres of water a year from roof gutters for cleaning the buses.
Groundworks for the construction have already been completed by Balfour Beatty subsidiary Raynesway.
Construction is due to be complete in October 2014 with the site fully operational in November 2014.