Christchurch's new stadium holds 30,000 for sports; Canberra plans a similar venue designed for AFL and cricket.
Christchurch's One New Zealand Stadium, which opened in March this year, can hold 30,000 spectators for sport and 37,000 for concerts and other events.
Canberra Airport has proposed a similar roofed venue in the city centre, while ACT Chief Minister Andrew Barr wants it designed for AFL and cricket as well as rectangular sports.
The Christchurch stadium cost about $531 million, including earthquake-proofing, after replacing Lancaster Park, damaged in the 2011 earthquake.
The proposed Canberra site is on Lake Burley Griffin's north shore at Regatta Place, where some land is leased to the Catholic Church for the Catholic Archbishop's house.