The undertaking will include the addition of a 27-story office tower over a retail podium; refurbishment of the existing office building at 100 Market St.; expansion of the current retail area from 340,354 sf (31,620 sm) to 416,778 sf (38,720 sm); expansion of the number of retailers from 263 to 300; expansion of the parking from 65 slips to 188 slips. The project will be completed in stages over three years.

Westfield lodged its revised Stage 1 Development Application for the project this week with the Sydney City Council. Major changes from the original development application include reducing the number of towers from three to one; shifting the new tower north, away from impeding the view of the base of Centrepoint tower; and substantially reducing the number of car parking spaces from 500 to 188.

The project is the latest in a series of mixed-use CBD developments for Westfield, including Century City in Los Angeles, the San Francisco Centre, Bondi Junction in Sydney and more recently the White City project, which Westfield says will become London's largest shopping centre.