Permits are managed at the municipal level by individual cities, towns, and villages within the county. The Onondaga County Department of Planning provides advisory reviews for projects with regional impact, while local building departments handle all residential and commercial permit issuance and inspections.
How this fits with the state
The state authority here is Local licensing authorities; NYC DCWP / DOB in New York City. The county file does not replace that — it adds the permit office, local overlays, and the actual filing path.