If you are an Australian citizen living and work abroad then you can obtain mortgage finance to purchase a property in Australia. You cannot obtain Australian finance for a property in another country.

Not all lenders will lend to you but several including the majors will extend normal products, rates and fees. They will normally limit your borrowing to 80% of the value (LVR - loan valuation ratio) although some will extend this to 90% or even 95% on stronger deals.

If you have a non citizen spouse and want them to also be on the title then the 80% limit is universal.

You can also borrow in some foreign currencies, as long as your income is in that same currency.