Possible legislation filed by a local state representative could pave the way for potential tax abatements for those who install rainwater catchment systems.

Jason Isaac (R-Dripping Springs) this month filed House Bill 1334, which calls for a local option exemption from property taxes for a “portion” of appraised property that’s attributable to installation of a rainwater harvesting system.

The bill aims to offset the potential increase in property value when a person or business...