get a mortgage broker and they will help you more than a bank will. Now is a good time to buy and/or build so good luck. You might want to see if you can put 10% down, depending on the brokerage firm, that might be an asking %.
I would probably go to a financial professional for advice, since it's a situation that a professional can probably answer best, and due to market conditions you just never know. Though I would say since interest rates have been lower than they've ever been, it SHOULD be easy to get a loan, but I may be wrong.
-------------------------------------------------- Canada prime rate
I've lived in the US and Canada too. As a new Canadian it's very difficult to get credit. I have a friend that just immigrated too and he told me don't even think about buying a home in Canada unless you have 10%. Case in point. My first credit card ever issued in the US was for $6600. In Canada, $1000. Same income. It's going to be tough. And Canada financial companies have a more practical approach to lending money. Instead of charging high rates for new borrowers, they prefer you put more cash down on a mortgage (as the loan becomes more secure for them that way.) But I would give it a shot and find out. Part of the problem in the US with charging high interest rates for new credit customers was that there were investors willing to buy that debt because of the big return. Then debtors all stopped paying at once. Canada has the most secure financial system in the entire world. More so than the USA, Switzerland, or Luxembourg. The downfall is, it's hard to get credit.