One of the main drivers of housing demand has the power to radically alter housing prices and rents, yet like an elephant in the room, it’s being ignored by most analysts and researchers.
The elephant is the movement of people from one State or Territory to another, which is called interstate migration.
The biggest changes to property markets are made when people move
People change housing demand and supply when they move, because we all need a place to live.
When enough people move, they can dramatically alter housing prices and rents in the process.
Around three percent of our total population moves from one State or Territory to another each year, but as this graph shows, the percentages of interstate movers is significantly higher in Tasmania, the ACT and the Northern Territory.

Over 11% of the Northern Territory’s population are interstate movers
The large numbers of people moving in and out of the Northern Territory each year is largely due to the presence of the huge army, navy and RAAF bases and military training facilities located there to safeguard our northern borders.
The recent strengthening of our defence capabilities in the Northern Territory has led to an increase in the number of defence personnel and their relocation in or out of Darwin, causing the current housing shortage and property market boom.
Although the Northern Territory has a small net annual interstate migration figure, this hides the fact that over 30,000 people move in or out of the Territory each year.
With such massive numbers of people moving, why is this phenomenon going unnoticed?
The answer is that many analysts and economists use net interstate migration numbers, which is the net increase or decrease in the population of a State or Territory from interstate movements.
This is very different to the total numbers of people arriving and leaving, which is what’s actually occurring.
For example Canberra’s net interstate migration fall last year was only 1,300 people, but 21,500 residents left the ACT while another 20,200 people arrived, which means that over eight percent of Canberra’s population moved in or out of the Territory.





