ACT Opposition Leader Elizabeth Lee said the development of a new town centre at Kowen Forest could add 100,000 dwellings to the ACT's housing stock.
This would account for up to 80 per cent of future housing in the territory under the party's plan to add 125,000 new homes over the next 25 years.
But the Liberals' plan has been strongly criticised by Labor, with Planning Minister Chris Steel saying the development would take too long to deliver housing.