The advertised 'low rate' usually applies for a fixed period (1–5 years), after which the loan moves to a floating rate — EIBOR plus the bank's margin. Compare offers by the total cost over the full term, not the starting number.
For a non-resident, banks typically finance about 50–60% of the value, so the down payment is roughly 40–50% plus transaction fees. During construction a developer payment plan is more common, with a mortgage arranged closer to handover.
Pre-approval before choosing a property fixes the budget, speeds up the deal and strengthens your negotiating position. See our guide to mortgages for non-residents for the details.
Source: UAE banks / EIBOR