Fairfield County functions primarily as a geographic designation rather than a governing body for land use. All building permits, zoning approvals, and inspections are handled exclusively by the individual incorporated cities and towns. Coastal municipalities are subject to additional state-mandated flood zone and coastal management regulations enforced at the local level.
How this fits with the state
The state authority here is Connecticut Department of Consumer Protection. The county file does not replace that — it adds the permit office, local overlays, and the actual filing path.