Earlier quoted context omitted.
I’m skeptical that taxes themselves can resolve the problem. The people who engage in these tactics are already quite good at gaming them. Housing would have to revert to circumstances like Japan, where homes are largely a depreciating asset.
Replace portion of income tax with simple property tax. No complicated stuff like "unoccupied property taxes and non-resident investor taxes".
Charging tax on property (building + land) mostly just disincentivizes more intensive buildings.