Hi jassee If you are arriving and have permanent resident status in Canada you can purchase Real Estate with 25% and your credit history from UK,Honkong,Australia,US and any other country belonging to the United Kingdom it will be useful (it is not valid in Canada) but it will be useful because it shows of you pattern of credit.
If you don't have permanent status then you will need 35% and up to buy,anybody can own Real Estate in Canada as long as they have more than 35%.
I'm a Realtor since 2002 and working in the GTA.
If you have any question or to see properties and have an idea visit my site alrivas. com.