The Municipality of Anchorage is an incorporated city and borough that handles its own permitting and zoning. Other areas within the larger Anchorage Borough may operate under different jurisdictions. Specific overlays related to seismic activity or wildfire risk may apply.
How this fits with the state
The state authority here is Alaska Division of Corporations, Business and Professional Licensing. The county file does not replace that — it adds the permit office, local overlays, and the actual filing path.