Where we work around Austin

The core area is Austin itself, inside city limits, and the unincorporated Travis County land around it. Austin is the Travis County seat and sits where the Blackland Prairie meets the Hill Country, which is why one side of town digs clay and the other digs rock.

What changes with the address

Where	Building rules	Typical ground
City of Austin	City permits; flatwork outside the right-of-way exempt; impervious cover limits by zoning; tree and floodplain review	Clay toward the Blackland Prairie, limestone toward the Hill Country
Unincorporated Travis County	County development, driveway and septic permits; foundation-stage inspections where LGC 233 Subchapter F is adopted	Varies from deep clay to shallow rock
A city's extraterritorial jurisdiction	That city's building code applies if it adopted one there (LGC 233.153)	Varies

Swipe the table sideways to see every column →

Sources: City of Austin permit pages and residential application; Travis County permit page; Texas Local Government Code Chapter 233.

Not sure which rules cover your lot? The Austin slab permit and impervious cover guide explains each one, and the concrete slab contractor Austin TX page covers the work itself.

Limestone bluff typical of the Edwards Plateau in the Texas Hill Country — A limestone bluff on the Edwards Plateau, the Hill Country geology west of Austin. Photo by William L. Farr, CC BY-SA 4.0.

Slab work across the area

Dry clay soil split into deep shrinkage cracks — Clay soil cracking as it dries. The USDA says Houston Black clay, common on the Blackland Prairie side of Austin, opens cracks up to 4 inches wide. Stock photo, not a job by this site.

Concrete Slab Service Area: Austin and Travis County

Where we work around Austin

Slab work across the area

Is your address in the area?