It is possible to borrow 100% of the purchase price of a property but only if you have a relative who owns a property and is happy to act as your guarantor. You may even be able to borrow 100% plus purchase costs. There is even a lender that may lend up to another $50,000 for renovations. Without a guarantor the maximum that can be borrowed is 95% of the purchase price plus the entire mortgage insurance premium. This often totals 99% of the purchase price.