The City of Bismarck operates its own building inspection department for all work within city limits. Burleigh County Building Inspection handles permits for all unincorporated areas of the county. Development in the Missouri River floodplain requires additional review and compliance with specific flood hazard area regulations.
How this fits with the state
The state authority here is North Dakota Secretary of State; state trade boards. The county file does not replace that — it adds the permit office, local overlays, and the actual filing path.