Near Marshall, ask which rules apply before building

Near Marshall, start with a plain map question: is the parcel inside a city, or out in unincorporated Harrison County? Texas law lets counties review subdivisions outside city limits. That line can change the right desk.

For county work, start with septic and land layout. Environmental Health materials cover OSSF permits, subdivision applications, and mobile-home, RV, and tiny-home park review.

Floodplain work runs through Road & Bridge. It has separate home and commercial floodplain permit forms. Before drawing plans, check the city line, septic, subdivision, and floodplain pieces together.