Adopted edition
Local adoption (Home Rule)
City has its own adoption — separate from county.
TX · City
Round Rock, TX.
Round Rock, TX — building code: Local adoption (Home Rule).
Design wind speed
100 mph
ASCE 7 Risk Cat II, 3-second gust at 33 ft.
Climate zone (IECC)
1A
Drives R-value, fenestration U-factor, and air-leakage envelope rules.
Special zones
- HVHZ
- WBDR
- WUI
- FEMA SFHA possible
Permit office
Round Rock Building Department
ZIP coverage
6 ZIP codes inside Round Rock.
Each ZIP resolves to the correct city + county + state on every parcel lookup. Multi-jurisdiction parcels pick up amendments from each layer.
78664 78665 78680 78681 78682 78683
Working in Round Rock?
Pull an address-level code packet for any parcel in Round Rock. SkyCanvass resolves the address, looks up the Round Rock-specific amendments and the Williamson county and Texas state floor, then emits a cited packet ready for permit submittal.
See the Williamson county overview, or the Texas state directory .
Pull a Round Rock code packet.
Free to start — property lookups, state code access, the hail map, and your first storm report on us. No credit card required to look up an address.