
Here's an interesting table via the Globe and Mail:

As of January of this year, residential real estate loans in Canada totalled approximately $2.07 trillion. On top of this there's another $350 billion in home equity lines of credit. This brings total loans secured by residential real estate in this country to about $2.42 trillion.
What this chart really shows, though, is how concentrated the mortgage market is. The "big six" banks make up about 74% of the market. If you include Desjardins, the total increases to 80%. That's pretty much the market.
Cover photo by Tiago Rodrigues on Unsplash
A few weeks ago, Equitable Bank launched a new construction financing product for laneway homes and garden suites in Canada. Here is the announcement. This is generally good news. When we completed Mackay Laneway House back in 2021, the banks hadn't yet gotten their head around this housing type. I remember RBC getting tripped up on the fact that there were two detached dwellings on the same residential lot.
That said, there are some important conditions around this new mortgage product:
"The Laneway House Mortgage is offered on properties that are free and clear, or in combination with new or existing mortgages where Equitable Bank holds, or will hold, the first position."
In other words, they want no debt on the property or they want sufficient equity in the property -- but Equitable Bank needs to hold the mortgage. I suspect that most of the people who have built laneway and garden suites have done so by leveraging the equity in their main house; so I'm not sure how "innovative" this product will end being in practice. You'll also need to switch to Equitable Bank if you have your mortgage with another lender.
Still, if you're looking to build one of these homes -- and I continue to believe that they make a ton of sense both financially and from a city-building standpoint -- it wouldn't hurt to see what Equitable Bank can offer.