Permitting is highly decentralized, with the City of Erie and other boroughs managing their own building departments and zoning ordinances. The Erie County Department of Planning provides oversight for subdivision and land development reviews in municipalities that have not adopted their own ordinances. Floodplain management is strictly enforced in coastal areas along Lake Erie and near major tributaries.
How this fits with the state
The state authority here is Pennsylvania Office of Attorney General; local building departments. The county file does not replace that — it adds the permit office, local overlays, and the actual filing path.