As far as I know, most lenders will offer mortgages at that level, some won't. For example, Halifax will only offer 80% mortgages on apartments in Dublin and 75% mortgages in the rest of Ireland.
I suppose it's a case of getting in touch with all the lenders and finding out.
As with any mortgage it really depends on your overall circumstances - e.g. income, existing debts/savings, how much you are looking to borrow (amount and percentage of purchase price) etc. Otherwise it's difficult to comment in general terms.