Permitting is highly decentralized; incorporated cities manage their own building codes and zoning. The Parker County Development Office oversees development, septic, and floodplain permits for unincorporated areas. Development in unincorporated areas is subject to specific platting requirements and floodplain regulations managed by the county.
How this fits with the state
The state authority here is Texas Department of Licensing and Regulation; Texas State Board of Plumbing Examiners. The county file does not replace that — it adds the permit office, local overlays, and the actual filing path.