We have an example of a co-housing complex here called Harbourside; it's in Sooke, about 45 minutes outside of the city of Victoria. It was privately financed. Seniors pooled their money, essentially, and paid for the development itself, which is the same model that happened in Saskatoon.
In the U.S., there's a mixture of financing. A lot of faith-based communities have supported co-housing, and so those churches then contribute financing.