I don't have it with me, but the Canada Mortgage and Housing Corporation does have definitions of core housing need in terms of affordability. If you're spending 30% or more of your income on housing, it would be unaffordable. They also have some guidelines with respect to the number of people in your household and how many people have to share rooms for sleeping purposes. So there are some very clear guidelines that we've set, as a country.
The one area we really need to be looking at in terms of decent, affordable housing is a new dimension, which is only now being talked about, and that is called “visitability”. That means your home is accessible and it can be visited by people with disabilities. Again, with an aging population, we're far more concerned about ensuring the whole population has access to housing and that housing is built in an accessible way.
There is an affordability and a space constraint, and now there is an accessibility component being added to that.