Why have there been no new districts built since the 1990s?

Gunghalin was built in the 90s. Since then, no major new districts have been built in the ACT, despite an abundance of land, extremely high cost of housing and massive demand.

You’d be forgiven for thinking they were trying to create an artificial bubble to drive up the cost of housing.

Edit -

If you’re going to compare Molonglo to Gunghalin, I’ve got a bridge to sell you.