GGB It varies so widely with format, shell condition and location that a single figure misleads — which is why we scope it per project rather than publish totals. The honest way to budget is by category: fit-out and construction, kitchen and equipment, licences and approvals, deposits, pre-opening payroll and training, opening stock and marketing, and working capital. The figure that decides survival is rarely the headline capex; it is whether rent sits inside a typical 6–12% share of realistic revenue and whether enough cash is reserved for the ramp-up months.
From How to Open a Restaurant in Dubai: The Operator's Step-by-Step Guide — the full reading, with the method behind this answer.