People's Choice Credit Union has declared that it is "forever in Adelaide", a stance that helps explain the decision to commit to leasing seven floors in a 14-storey development in the city.Commercial & General, an Adelaide-based property developer, will build and own a 20,000 square metre tower at the Flinders Street site presently owned (and occupied) by the credit union.Staff working in the present building (which will be demolished) will temporarily transfer to a second site in Light Square."We're going to double our size over the next five years with a push into the eastern states," the bank's managing director, Peter Evers, wrote in a media release.People's Choice is the second largest credit union, with A$6 billion in assets. It was formed from the merger of Australian Central and Savings & Loans credit unions.