How Deep Should a Paver Base Be in Bay Area Clay Soil?
ICPI’s base-depth ranges for patios and driveways, why Bay Area clay (Diablo series, shrink-swell) changes the plan, what geotextile fabric does, and a pre-project checklist.
October 17, 2026
Driveway Approaches and Encroachment Permits: What Bay Area Cities Ask For
The strip of concrete between your garage and the street crosses the public right-of-way, which is why most driveway-approach work needs a city encroachment permit. How Concord, Dublin, San Jose and Pleasanton each handle it, what they ask for, and San Jose’s same-footprint exception.