Footings sized for the addition and the site
We design footing dimensions and reinforcement to suit the addition’s loads and soil conditions. Much of Ygnacio Valley and the major drainages along Tice and San Ramon Creeks are in mapped liquefaction zones, where earthquake-related ground movement is a site-specific concern. Walnut Creek, Tice Creek and tributaries to Grayson Creek are primary flood-hazard areas, and localized flooding can occur elsewhere.
PE-stamped plans for permit submission
We prepare PE-stamped foundation plans and details for permit submission. These document the footing dimensions and reinforcement for the proposed addition; the stamp is not a guarantee of permit approval.

Home-addition foundation design cost
Our home-addition foundation design costs $1,500 to $3,000.
How It Works
The process is short and the same every time:
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Tell Us What You Need
A short call is enough for us to understand the project and what it will take.
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Research First
We review what's already on file, records, plans, and prior work, before anyone heads out.
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Clear, Written Price
You get the scope and the price in writing before any work starts. No surprises.
What this typically involves:
- Visit the property and assess the existing foundation and relevant site conditions.
Our Service Area
Based in Walnut Creek, CA. Call (925) 532-0683 to confirm coverage for your address.
Also Available
How We Do Business
Fast Scheduling
Quick call, honest answer, the form works too.