Collins Place is a large mixed-use complex in the Melbourne central business district, Victoria, Australia. Designed in about 1970 by IM Pei & Partners, and finally completed in 1981, it was Melbourne's first and Australia's largest mixed use project, including basement car-parking, a shopping plaza with professional suites, cinemas and a nightclub in t…Collins Place is a large mixed-use complex in the Melbourne central business district, Victoria, Australia. Designed in about 1970 by IM Pei & Partners, and finally completed in 1981, it was Melbourne's first and Australia's largest mixed use project, including basement car-parking, a shopping plaza with professional suites, cinemas and a nightclub in the lower levels, and offices and a high-rise hotel in a pair of towers above.