Detached garages, shops, and barns fall under different permitting paths depending on where the property sits. Inside an incorporated city limit, that typically means a city building and electrical permit; in the unincorporated parts of Grayson and Collin County, including Westminster, Texas law limits what a county can require for a single-family home's electrical work, so a permit may not apply at all. Koryente confirms which authority has jurisdiction, pulls the permit when one is required, and coordinates any new service point directly with the utility, since adding a feeder to an existing structure starts with confirming the main service has room for the added load.
Howe and Gunter reflect that rural character in their own electrical priorities — detached structures, acreage, and shop or workshop power alongside everyday circuits. A shop project on one of these properties often means tying a new feeder into service equipment that predates the outbuilding by years. Koryente sizes the subpanel and feeder with spare capacity for what gets added later — a welder, a compressor, or an EV charger — before any trenching starts.