Le 25 mars dernier pendant la période de question, le Premier Ministre Mark Carney He stated: "Affordability is the best it's been in over a decade." Is that true?

This statement isn't entirely false, but it's far from true. There have been some slight improvements recently:

Inflation has fallen dramatically compared to its 2022 peak.
Wage growth has recently outpaced inflation
Interest rates have fallen from their highest levels.
In some cities, rents have stabilized or decreased slightly.
Some housing affordability measures, particularly those based on mortgage payments as a percentage of income, have improved from their worst levels in 2023-2024.

Except that Mr. Carney said that affordability the best in over a decadeThis implies that we must compare it with 2015, and that's where the problem lies. The usual economic indicators do not support this assertion at all.

Property prices are much higher than in 2015
Rents are also much higher than they were ten years ago.
Grocery prices are also much higher
Insurance costs and several other services are also much higher.
The cumulative increase in the cost of living over the past decade has outpaced income growth for most households.
Although it has decreased somewhat, inflation is still higher than it was ten years ago.