This upgrade program includes life-extension refurbishment, a new radar system, Mk.
The first stage, completed in late 2010, included refurbishment of the station, a bus interchange and a new carpark.
The project includes refurbishment of some of the existing buildings and the construction of a new hospital building.
The market has recently undergone an upgrade, which includes a new design and refurbishment.
The company's projects included the purchase and refurbishment of the Adam & Eve in 1889.
This dated from around the 1950s, and was removed in 2004 during a programme of external works, which also included some stone-cleaning and refurbishment.
The construction project did not include refurbishment.
Recent additions include a £500,000 science centre, refurbishment to the technology suite and a new sixth form centre.
The £100 million project will include new housing, bus station, clinic and refurbishment of the shopping centre.
These include major refurbishment of the existing rolling stock and stations, at an overall cost of £270million.