65% of Canadians agree with reducing the home ownership tax shelter.

Any change to tax laws would need to preserve the position of folks who have already made choices based on the current tax structure.

Adding a lifetime maximum on the capital gains for selling a primary residence would be a step in the right direction. Many US states apparently have that.

Similarly, removing/reducing the mortgage interest deductions for improvements to primary residences would clearly signal that homes are not investment vehicles.

As Gen Squeeze suggests, we can also increase taxes on residences that spike up over a certain value. They suggest one million dollars, but that could vary by region.