I decided to pore through the Demographia Housing Affordability Survey scores to see how housing has fared this past decade. I only coded in North American cities (as I'll be cross-posting to a North America-only forum), but wanted to share the results here. The "survey" isn't actually a survey, simply a compilation of Median Home Price/Median Household Income:
New York has actually gotten cheaper in the past decade, while Philadelphia (+0.1 since 2010) has barely budged. In the Northeast, the only two that have grown more unaffordable are Boston and Washington, though in both cases the trends are moderate (+1.1 and +0.8, respectively).
As expected the biggest increases are in the West Coast and Canada, with Toronto being the #1 city for housing unaffordability growth. Vancouver is #2 at 3.5, followed by Los Angeles, Las Vegas and San Jose. It does look like the California housing exodus is having some impact, as Los Angeles and San Diego both became more affordable in the past 5 years.
There were also notable increases in the Sunbelt, as the metro areas largely left the <3 range and began to climb up in unaffordability.
Any other trends I missed?