The loan amount is determined on the basis of your affordability, which is determined by evaluating your income & other credit liabilities.
For property purchases, if the property value is below AED 5 million, the maximum loan-to-value (LTV) for an Expat is 80% and for a UAE national is 85%. This value drops to 70% for Expats and to 75% for UAE nationals, if the property value is above AED 5 million.