Low Voltage Install Permit Requirements — Round Rock, TX
No permit is required for in-wall residential Ethernet cabling in Round Rock. Low-voltage data cabling (Class 2 communications circuits) is exempt under Texas state law and is not listed as a permit category by the City of Round Rock.
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What affects your permit requirement
Typical requirements
- Fee range
- Contact department for current fee schedule
- Department
- City of Round Rock Building Inspection Division(512) 218-5550https://www.roundrocktexas.gov/city-departments/planning-and-development-services/building-inspection/
These figures reflect typical jurisdiction data. Fees and timelines change. Run a free search on your exact address for jurisdiction-confirmed requirements before you bid or apply.
Frequently asked questions
Do I need a permit to install Ethernet cabling in my Round Rock home?
No. In-wall residential Ethernet (Cat5e/Cat6) is classified as Class 2 low-voltage communications wiring under NEC Article 725 and is exempt from permitting in Round Rock. The City does not maintain a low-voltage or data/communications permit category for residential work.
Is low-voltage cabling installation licensed or regulated in Texas?
No. The Texas Electrical Safety and Licensing Act explicitly exempts Class 2, Class 3, and communications circuits (including raceways) from licensing requirements. However, municipal codes can impose stricter requirements, though Round Rock does not require permits for this work.
What if my Ethernet run goes through a wall between my garage and living space?
Any penetrations through fire-rated assemblies must be firestopped per the 2024 IRC—this is a mandatory code compliance requirement regardless of permit status. Contact the Building Inspection Division at 512-218-5550 to confirm if your installation involves fire-rated walls.
Should I contact Round Rock Building Inspections before starting my Ethernet installation?
It is not required, but you may call 512-218-5550 to confirm permit status or use the free one-time consultation at https://permits.roundrocktexas.gov/portal. This is optional and purely for verification.
What code standard does Round Rock use for low-voltage wiring?
Round Rock has adopted the 2023 National Electrical Code (NEC) and 2024 International Residential Code (IRC). Low-voltage data cabling is governed by NEC Article 725 (Class 2 wiring) and Article 800 (communications circuits).