Central Texas Dirt and secrets
Your Realtor's Guide to Smart Foundation Advocacy
Have you ever wondered why nearly every home inspection in Central Texas brings up the "F-word"—Foundation? The unique soil under our feet, known as expansive clay, makes foundation movement a common, but often misunderstood, regional reality. But the dirt doesn’t have to be a secret.
As a Central Texas real estate professional, you don't need to be an engineer, but you do need to be the client's best advocate. Your highest value lies in ensuring your buyers order the right inspection tools to get a clear picture.
The Central Texas truth: Understanding Expansive Clay
The core issue is our expansive clay soil. This soil acts like a giant sponge: it swells when wet and shrinks when dry.
The Soil-Water Cycle: This annual cycle of expansion (heave) and contraction (settlement) puts constant, cyclical stress on the home’s foundation, leading to movement.
The Agent's Role: Since movement is expected, your job is to guide clients in determining if the movement is typical seasonal shifting or a progressive structural failure.
The Critical Tool: The Foundation Elevation Measurement
While a standard home inspection covers visible cracking and symptoms, the most crucial data point for determining movement severity is the Foundation Elevation Measurement (also called a floor level survey or differential deflection test).
What It Is: This is a specialized add-on to the home inspection. The inspector uses a laser or digital level to map the floor height at multiple points across the slab.
What It Tells You: The final report shows the difference in height (deflection) between the highest point of the foundation and the lowest point. This measured difference is what tells an engineer how much the foundation has actually moved.
Your Advocacy: Encourage every buyer to add this to their inspection package. Without the hard data from an elevation measurement, many visible findings are just educated guesses.
Spotting house foundation Red Flags
The home inspector will look for visible evidence of movement. Use this list to help manage client expectations when reviewing the inspection report.
Common/Cosmetic foundation Findings (Typical Central Texas Living)
Minor, thin hairline cracks in interior drywall, usually above door frames.
Slight sticking of interior doors that is only noticeable during peak drought or wet seasons.
Serious Red Flags (Triggers for Specialist Review)
If the report notes these severe visual symptoms, combined with a poor elevation report, it's time to call in the specialist:
Stair-step cracks in exterior brick veneer.
Widespread, significant diagonal cracking (wider than a dime) across sheetrock, especially in multiple rooms.
A large separation between the chimney structure and the house wall.
Proactive Client Management: When to Call the Engineer
You are the facilitator, not the final word. If the inspection report shows significant measured deflection and severe visual symptoms, your recommendation should be clear and immediate:
Read the Data: Focus on the elevation report's deflection numbers. Significant movement (typically exceeding 1.5 to 2 inches over a specific distance, depending on the house size and slab type) is a major concern.
Call a Specialist: Always recommend consulting a Licensed Structural Engineer if the measured deflection is high or if the visual symptoms are severe. The engineer provides the objective diagnosis and the prescriptive repair plan.
Your Value Proposition
Foundation findings are common, but panicked closings don't have to be. Your value as a Central Texas Realtor is to provide calmness and context.
Seller Advice: Advise sellers on proactive maintenance, such as proper drainage and consistent foundation watering (especially in summer) to minimize visible symptoms.
Buyer Advocacy: Ensure buyers understand standard foundation inspections, the local conditions and the option to add an elevation measurement. This data helps them make an informed decision and factor potential future monitoring or maintenance into their purchase.
By advocating for thorough inspections and the use of the right diagnostic tools, you help your client move from confusion to clarity.

