One of those differences deserves a closer look. Restaurants clear two plan reviews, not one. The building department reviews construction, while the health department reviews food safety. Both run on separate tracks, so our restaurant estimating services carry an allowance for each.
Code drives more than permits. Restaurants generally fall under IBC Assembly Group A-2 occupancy, which sets occupant load, egress, and restroom fixture counts. Occupant load ties straight to seat count, so the code connects directly to your per-seat benchmark.
Kitchen systems follow their own rules. NFPA 96 governs commercial cooking ventilation, while NFPA 17A and UL 300 cover wet chemical suppression. The adopted plumbing code sets grease interceptor sizing. FDA Food Code, NSF/ANSI listings, and ADA standards shape finishes and seating. Adopted editions vary, so USA Estimators confirms them at the quote stage.