If you mean housing cost relative to salary, however, that's perhaps a different story.
I've had some trouble finding closely comparable values but it seems like the median SF detached home price is ~$1 million. Even considering the exchange rate, it seems like Vancouver is more expensive.
Certainly when one compares typical incomes Vancouver is dramatically less affordable than San Francisco.
Here's a pretty typical example: https://www.realtor.ca/Residential/Single-Family/17409318/55...
Before you ask, no that's not even in a really desirable part of Vancouver.
That will cost you another million. See this as an example: https://www.realtor.ca/Residential/Single-Family/17850427/31...
And that's CAD, not USD. In USD it's $1,092,000. Still very expensive but not $1.76mln.
[1] http://news.buzzbuzzhome.com/2017/03/metro-vancouver-home-li... [2] http://www.vancourier.com/news/sales-average-detached-home-p...
http://www.rew.ca/news/benchmark-vs-average-vs-median-what-s...
Vancouver's market had a reputation of being driven by Chinese cash... and whether that's true or not, perception is reality when it comes to markets.
Have you been in the area in the last 30 years? There hasn't been a homicide anywhere in Menlo Park since 2012.
(Has not looked for an apartment in Vancouver in the last 10 years)
You're right that it's not easy to come by though, and if you want to live within a 30 minute transit commute of downtown and have a single bedroom, it's unlikely you'll find anything for less than $750 that's not an SRO