Waco has been absorbing growth out of both DFW and Austin for years, and a lot of the projects we see here arrive as a set of drawings that worked somewhere else. Usually that is fine. In Waco specifically, there is one reason it might not be.
Waco Is on the 2024 Codes
The City of Waco adopted the 2024 International Building Code and 2024 International Residential Code under Ordinance 2025-813, passed 4 November 2025. Permits are handled by Waco Inspection Services, and the adopting ordinance sits in the Waco Code of Ordinances.
That is a newer edition than most of North Texas. Dallas and Plano are on the 2021 codes. Irving moved to the 2024 edition in May 2026. Austin is on 2021. So a prototype drawn for a Dallas store and priced against Dallas review is being submitted in Waco against a later code, and the differences are real enough to be worth a compliance review before submittal rather than a resubmittal after.
This is the general Texas problem in a specific place: there is no mandatory statewide building code, so adoption happens city by city on independent schedules. The Texas Department of Insurance maintains a public list of adopted codes by jurisdiction, which is the fastest way to check before you assume.
Inside the City or Outside It
Waco sits in McLennan County, and the distinction matters more here than in a fully built-out metro because a lot of the land people are building on is at the edge. Inside the city limits, Waco Inspection Services reviews and permits. Outside them, McLennan County applies its own building provisions for unincorporated areas.
Establish which applies before design, not at submittal. It changes the reviewing authority, the applicable amendments and the timeline.
What Actually Drives a Waco Number
**Code edition, as above.** The compliance review is cheap. The resubmittal is not.
**Foundation.** Central Texas soils vary considerably across short distances here, and the honest answer is that a geotechnical report is the only way to size a slab correctly. It is the least compressible line on the job.
**Site work.** Grading, drainage, utilities and access. On the greenfield edges where a lot of Waco growth is happening, site work is a larger share of the total than an in-fill project would suggest.
**Distance to trades.** Waco has a real subcontractor base but it is thinner than DFW's for specializt trades. On a scope needing something unusual, expect either a premium or a trade traveling from Dallas or Austin.
**Certificate of occupancy.** If the use of a space is changing, that is a separate application from the building permit and it cannot issue until every trade inspection clears.
Material Prices
Material cost does not vary much between Waco and DFW; it varies over time. Track it directly rather than relying on assurances: the BLS Producer Price Index is the primary series, with steel mill products published as FRED series WPU1017.
How We Price Waco
Waco is inside our regular working area and we have built there for years. Projects there do not carry the mobilization cost that Houston or San Antonio work does, and we will say so in the estimate rather than pricing distance we are not incurring.
What we will flag on a Waco job, every time, is the code edition. If your drawings were prepared for another Texas city, tell us which one and when, and we will check the delta before anything goes to review.